iss.c revision af15d025ecdf35ad1eb438595727d80155d8d28e
159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * TI OMAP4 ISS V4L2 Driver 359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Copyright (C) 2012, Texas Instruments 559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> 759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * This program is free software; you can redistribute it and/or modify 959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * it under the terms of the GNU General Public License as published by 1059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * the Free Software Foundation; either version 2 of the License, or 1159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * (at your option) any later version. 1259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 1359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 1459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/clk.h> 1559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/delay.h> 1659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/device.h> 1759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/dma-mapping.h> 1859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/i2c.h> 1959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/interrupt.h> 2059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/module.h> 2159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/platform_device.h> 2259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/slab.h> 2359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/sched.h> 2459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <linux/vmalloc.h> 2559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 2659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <media/v4l2-common.h> 2759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <media/v4l2-device.h> 2859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include <media/v4l2-ctrls.h> 2959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 3059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include "iss.h" 3159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#include "iss_regs.h" 3259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 3359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#define ISS_PRINT_REGISTER(iss, name)\ 3459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", \ 3511abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_##name)) 3659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 3759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_print_status(struct iss_device *iss) 3859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 3959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_dbg(iss->dev, "-------------ISS HL Register dump-------------\n"); 4059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 4159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_PRINT_REGISTER(iss, HL_REVISION); 4259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_PRINT_REGISTER(iss, HL_SYSCONFIG); 43ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart ISS_PRINT_REGISTER(iss, HL_IRQSTATUS(5)); 44ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart ISS_PRINT_REGISTER(iss, HL_IRQENABLE_SET(5)); 45ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart ISS_PRINT_REGISTER(iss, HL_IRQENABLE_CLR(5)); 4659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_PRINT_REGISTER(iss, CTRL); 4759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_PRINT_REGISTER(iss, CLKCTRL); 4859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_PRINT_REGISTER(iss, CLKSTAT); 4959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 5059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_dbg(iss->dev, "-----------------------------------------------\n"); 5159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 5259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 5359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 5459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_flush - Post pending L3 bus writes by doing a register readback 5559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 5659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 5759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * In order to force posting of pending writes, we need to write and 5859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * readback the same register, in this case the revision register. 5959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 6059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * See this link for reference: 6159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * http://www.mail-archive.com/linux-omap@vger.kernel.org/msg08149.html 6259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 6359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrevoid omap4iss_flush(struct iss_device *iss) 6459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 6511abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_REVISION, 0); 6611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_REVISION); 6759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 6859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 6959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 70af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart * iss_isp_enable_interrupts - Enable ISS ISP interrupts. 7159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 7259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 73af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchartstatic void omap4iss_isp_enable_interrupts(struct iss_device *iss) 7459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 75af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart static const u32 isp_irq = ISP5_IRQ_OCP_ERR | 76af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart ISP5_IRQ_RSZ_FIFO_IN_BLK_ERR | 77af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart ISP5_IRQ_RSZ_FIFO_OVF | 78af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart ISP5_IRQ_RSZ_INT_DMA | 79af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart ISP5_IRQ_ISIF_INT(0); 8059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 81af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart /* Enable ISP interrupts */ 82af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQSTATUS(0), isp_irq); 83af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQENABLE_SET(0), 84af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart isp_irq); 8559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 8659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 8759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 88af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart * iss_isp_disable_interrupts - Disable ISS interrupts. 8959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 9059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 91af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchartstatic void omap4iss_isp_disable_interrupts(struct iss_device *iss) 9259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 93af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQENABLE_CLR(0), ~0); 9459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 9559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 97af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart * iss_enable_interrupts - Enable ISS interrupts. 9859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 9959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 100af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchartstatic void iss_enable_interrupts(struct iss_device *iss) 10159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 102af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart static const u32 hl_irq = ISS_HL_IRQ_CSIA | ISS_HL_IRQ_CSIB 103af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart | ISS_HL_IRQ_ISP(0); 10459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 105af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart /* Enable HL interrupts */ 106af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQSTATUS(5), hl_irq); 107af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQENABLE_SET(5), hl_irq); 108af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart 109af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart if (iss->regs[OMAP4_ISS_MEM_ISP_SYS1]) 110af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart omap4iss_isp_enable_interrupts(iss); 11159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 11259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 11359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 114af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart * iss_disable_interrupts - Disable ISS interrupts. 11559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 11659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 117af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchartstatic void iss_disable_interrupts(struct iss_device *iss) 11859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 119af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart if (iss->regs[OMAP4_ISS_MEM_ISP_SYS1]) 120af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart omap4iss_isp_disable_interrupts(iss); 121af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart 122af15d025ecdf35ad1eb438595727d80155d8d28eLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQENABLE_CLR(5), ~0); 12359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 12459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 12559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_get_external_info(struct iss_pipeline *pipe, 12659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_link *link) 12759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 12859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss = 12959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre container_of(pipe, struct iss_video, pipe)->iss; 13059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev_format fmt; 131ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart struct v4l2_ctrl *ctrl; 13259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 13359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 13459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!pipe->external) 13559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 13659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 13759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pipe->external_rate) 13859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 13959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 14059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre memset(&fmt, 0, sizeof(fmt)); 14159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 14259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre fmt.pad = link->source->index; 14359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; 14459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_subdev_call(media_entity_to_v4l2_subdev(link->sink->entity), 14559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad, get_fmt, NULL, &fmt); 14659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 14759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -EPIPE; 14859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 14959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->external_bpp = omap4iss_video_format_info(fmt.format.code)->bpp; 15059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 151ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart ctrl = v4l2_ctrl_find(pipe->external->ctrl_handler, 152ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart V4L2_CID_PIXEL_RATE); 153ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart if (ctrl == NULL) { 15459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_warn(iss->dev, "no pixel rate control in subdev %s\n", 15559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->external->name); 156ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart return -EPIPE; 15759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 15859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 159ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart pipe->external_rate = v4l2_ctrl_g_ctrl_int64(ctrl); 16059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 16159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 16259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 16359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 16459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 16559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Configure the bridge. Valid inputs are 16659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 16759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * IPIPEIF_INPUT_CSI2A: CSI2a receiver 16859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * IPIPEIF_INPUT_CSI2B: CSI2b receiver 16959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 17059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * The bridge and lane shifter are configured according to the selected input 17159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * and the ISP platform data. 17259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 17359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrevoid omap4iss_configure_bridge(struct iss_device *iss, 17459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum ipipeif_input_entity input) 17559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 17659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 issctrl_val; 17759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 isp5ctrl_val; 17859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 17911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart issctrl_val = iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_CTRL); 18059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val &= ~ISS_CTRL_INPUT_SEL_MASK; 18159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val &= ~ISS_CTRL_CLK_DIV_MASK; 18259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 18311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart isp5ctrl_val = iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL); 18459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 18559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre switch (input) { 18659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case IPIPEIF_INPUT_CSI2A: 18759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val |= ISS_CTRL_INPUT_SEL_CSI2A; 18859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 18959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 19059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case IPIPEIF_INPUT_CSI2B: 19159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val |= ISS_CTRL_INPUT_SEL_CSI2B; 19259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 19359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 19459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre default: 19559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return; 19659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 19759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 19859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val |= ISS_CTRL_SYNC_DETECT_VS_RAISING; 19959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 200cce093ee559779d376fbd767d70a5b0ce4cf015aLaurent Pinchart isp5ctrl_val |= ISP5_CTRL_VD_PULSE_EXT | ISP5_CTRL_PSYNC_CLK_SEL | 201cce093ee559779d376fbd767d70a5b0ce4cf015aLaurent Pinchart ISP5_CTRL_SYNC_ENABLE; 20259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 20311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_CTRL, issctrl_val); 20411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL, isp5ctrl_val); 20559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 20659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 2075122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#if defined(DEBUG) && defined(ISS_ISR_DEBUG) 208380df42b5730541a740735052d61e9d2ee09d0ceLaurent Pinchartstatic void iss_isr_dbg(struct iss_device *iss, u32 irqstatus) 20959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 2105122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart static const char * const name[] = { 2115122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_0", 2125122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_1", 2135122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_2", 2145122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_3", 2155122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CSIA", 2165122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CSIB", 2175122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_0", 2185122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_1", 2195122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_2", 2205122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_3", 2215122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CBUFF", 2225122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "BTE", 2235122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_0", 2245122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_1", 2255122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_2", 2265122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_3", 2275122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_8", 2285122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "HS_VS", 2295122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "18", 2305122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "19", 2315122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "20", 2325122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "21", 2335122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "22", 2345122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "23", 2355122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "24", 2365122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "25", 2375122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "26", 2385122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "27", 2395122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "28", 2405122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "29", 2415122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "30", 2425122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "31", 24359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre }; 2445122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart unsigned int i; 24559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 24659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_dbg(iss->dev, "ISS IRQ: "); 24759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 24859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 0; i < ARRAY_SIZE(name); i++) { 24959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if ((1 << i) & irqstatus) 25059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pr_cont("%s ", name[i]); 25159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 25259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pr_cont("\n"); 25359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 25459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 255380df42b5730541a740735052d61e9d2ee09d0ceLaurent Pinchartstatic void iss_isp_isr_dbg(struct iss_device *iss, u32 irqstatus) 2565122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart{ 2575122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart static const char * const name[] = { 2585122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_0", 2595122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_1", 2605122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_2", 2615122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_3", 2625122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEREQ", 2635122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPELAST_PIX", 2645122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEDMA", 2655122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEBSC", 2665122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEHST", 2675122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEIF", 2685122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "AEW", 2695122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "AF", 2705122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "H3A", 2715122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_REG", 2725122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_LAST_PIX", 2735122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_DMA", 2745122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_CYC_RZA", 2755122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_CYC_RZB", 2765122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_FIFO_OVF", 2775122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_FIFO_IN_BLK_ERR", 2785122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "20", 2795122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "21", 2805122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_EOF0", 2815122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_EOF1", 2825122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "H3A_EOF", 2835122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_EOF", 2845122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "26", 2855122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_DPC_INI", 2865122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_DPC_RNEW0", 2875122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_DPC_RNEW1", 2885122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "30", 2895122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "OCP_ERR", 2905122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart }; 2915122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart unsigned int i; 2925122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 2935122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart dev_dbg(iss->dev, "ISP IRQ: "); 2945122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 2955122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart for (i = 0; i < ARRAY_SIZE(name); i++) { 2965122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart if ((1 << i) & irqstatus) 2975122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart pr_cont("%s ", name[i]); 2985122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart } 2995122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart pr_cont("\n"); 3005122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart} 3015122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#endif 3025122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 30359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 30459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_isr - Interrupt Service Routine for ISS module. 30559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @irq: Not used currently. 30659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @_iss: Pointer to the OMAP4 ISS device 30759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 30859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Handles the corresponding callback if plugged in. 30959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 31059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Returns IRQ_HANDLED when IRQ was correctly handled, or IRQ_NONE when the 31159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * IRQ wasn't handled. 31259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 31359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic irqreturn_t iss_isr(int irq, void *_iss) 31459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 315ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart static const u32 ipipeif_events = ISP5_IRQ_IPIPEIF_IRQ | 316ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart ISP5_IRQ_ISIF_INT(0); 317ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart static const u32 resizer_events = ISP5_IRQ_RSZ_FIFO_IN_BLK_ERR | 31859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_IRQ_RSZ_FIFO_OVF | 31959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_IRQ_RSZ_INT_DMA; 32059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss = _iss; 32159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 irqstatus; 32259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 32311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart irqstatus = iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQSTATUS(5)); 32411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQSTATUS(5), irqstatus); 32559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 32659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (irqstatus & ISS_HL_IRQ_CSIA) 32759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_isr(&iss->csi2a); 32859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 32959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (irqstatus & ISS_HL_IRQ_CSIB) 33059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_isr(&iss->csi2b); 33159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 33259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (irqstatus & ISS_HL_IRQ_ISP(0)) { 33311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart u32 isp_irqstatus = iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, 33411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_IRQSTATUS(0)); 33511abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQSTATUS(0), 33611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart isp_irqstatus); 33759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 33859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (isp_irqstatus & ISP5_IRQ_OCP_ERR) 33959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_dbg(iss->dev, "ISP5 OCP Error!\n"); 34059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 34159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (isp_irqstatus & ipipeif_events) { 34259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_isr(&iss->ipipeif, 34359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre isp_irqstatus & ipipeif_events); 34459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 34559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 34659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (isp_irqstatus & resizer_events) 34759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_isr(&iss->resizer, 34859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre isp_irqstatus & resizer_events); 3495122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 3505122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#if defined(DEBUG) && defined(ISS_ISR_DEBUG) 3515122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart iss_isp_isr_dbg(iss, isp_irqstatus); 3525122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#endif 35359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 35459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 35559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_flush(iss); 35659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 35759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#if defined(DEBUG) && defined(ISS_ISR_DEBUG) 35859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_isr_dbg(iss, irqstatus); 35959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#endif 36059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 36159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return IRQ_HANDLED; 36259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 36359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 36459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* ----------------------------------------------------------------------------- 36559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Pipeline power management 36659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 36759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Entities must be powered up when part of a pipeline that contains at least 36859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * one open video device node. 36959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 37059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * To achieve this use the entity use_count field to track the number of users. 37159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * For entities corresponding to video device nodes the use_count field stores 37259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * the users count of the node. For entities corresponding to subdevs the 37359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * use_count field stores the total number of users of all video device nodes 37459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * in the pipeline. 37559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 37659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * The omap4iss_pipeline_pm_use() function must be called in the open() and 37759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * close() handlers of video device nodes. It increments or decrements the use 37859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * count of all subdev entities in the pipeline. 37959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 38059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * To react to link management on powered pipelines, the link setup notification 38159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * callback updates the use count of all entities in the source and sink sides 38259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * of the link. 38359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 38459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 38559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 38659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_pm_use_count - Count the number of users of a pipeline 38759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 38859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 38959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return the total number of users of all video device nodes in the pipeline. 39059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 39159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_pm_use_count(struct media_entity *entity) 39259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 39359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity_graph graph; 39459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int use = 0; 39559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 39659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_graph_walk_start(&graph, entity); 39759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 39859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while ((entity = media_entity_graph_walk_next(&graph))) { 39959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE) 40059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre use += entity->use_count; 40159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 40259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 40359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return use; 40459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 40559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 40659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 40759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_pm_power_one - Apply power change to an entity 40859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 40959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @change: Use count change 41059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 41159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Change the entity use count by @change. If the entity is a subdev update its 41259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * power state by calling the core::s_power operation when the use count goes 41359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * from 0 to != 0 or from != 0 to 0. 41459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 41559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. 41659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 41759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_pm_power_one(struct media_entity *entity, int change) 41859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 41959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 42059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 42159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = media_entity_type(entity) == MEDIA_ENT_T_V4L2_SUBDEV 42259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ? media_entity_to_v4l2_subdev(entity) : NULL; 42359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 42459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (entity->use_count == 0 && change > 0 && subdev != NULL) { 42559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 42659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 42759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_subdev_call(subdev, core, s_power, 1); 42859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0 && ret != -ENOIOCTLCMD) 42959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 43059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 43159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 43259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity->use_count += change; 43359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre WARN_ON(entity->use_count < 0); 43459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 43559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (entity->use_count == 0 && change < 0 && subdev != NULL) 43659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre v4l2_subdev_call(subdev, core, s_power, 0); 43759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 43859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 43959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 44059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 44159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 44259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_pm_power - Apply power change to all entities in a pipeline 44359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 44459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @change: Use count change 44559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 44659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Walk the pipeline to update the use count and the power state of all non-node 44759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * entities. 44859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 44959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. 45059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 45159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_pm_power(struct media_entity *entity, int change) 45259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 45359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity_graph graph; 45459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *first = entity; 45559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret = 0; 45659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 45759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!change) 45859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 45959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 46059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_graph_walk_start(&graph, entity); 46159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 46259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (!ret && (entity = media_entity_graph_walk_next(&graph))) 46359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE) 46459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power_one(entity, change); 46559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 46659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!ret) 46759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 46859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 46959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_graph_walk_start(&graph, first); 47059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 47159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while ((first = media_entity_graph_walk_next(&graph)) 47259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre && first != entity) 47359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (media_entity_type(first) != MEDIA_ENT_T_DEVNODE) 47459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power_one(first, -change); 47559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 47659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 47759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 47859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 47959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 48059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_pipeline_pm_use - Update the use count of an entity 48159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 48259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @use: Use (1) or stop using (0) the entity 48359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 48459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Update the use count of all entities in the pipeline and power entities on or 48559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * off accordingly. 48659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 48759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. Powering entities 48859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * off is assumed to never fail. No failure can occur when the use parameter is 48959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * set to 0. 49059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 49159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_pipeline_pm_use(struct media_entity *entity, int use) 49259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 49359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int change = use ? 1 : -1; 49459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 49559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 49659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_lock(&entity->parent->graph_mutex); 49759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 49859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Apply use count to node. */ 49959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity->use_count += change; 50059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre WARN_ON(entity->use_count < 0); 50159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 50259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Apply power change to connected non-nodes. */ 50359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power(entity, change); 50459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 50559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity->use_count -= change; 50659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 50759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_unlock(&entity->parent->graph_mutex); 50859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 50959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 51059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 51159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 51259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 51359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_link_notify - Link management notification callback 51459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @link: The link 51559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @flags: New link flags that will be applied 51659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 51759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * React to link management on powered pipelines by updating the use count of 51859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * all entities in the source and sink sides of the link. Entities are powered 51959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * on or off accordingly. 52059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 52159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. Powering entities 52259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * off is assumed to never fail. This function will not fail for disconnection 52359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * events. 52459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 52559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_link_notify(struct media_link *link, u32 flags, 52659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int notification) 52759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 52859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *source = link->source->entity; 52959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *sink = link->sink->entity; 53059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int source_use = iss_pipeline_pm_use_count(source); 53159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int sink_use = iss_pipeline_pm_use_count(sink); 53259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 53359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 53459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && 53559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre !(link->flags & MEDIA_LNK_FL_ENABLED)) { 53659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Powering off entities is assumed to never fail. */ 53759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power(source, -sink_use); 53859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power(sink, -source_use); 53959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 54059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 54159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 54259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && 54359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre (flags & MEDIA_LNK_FL_ENABLED)) { 54459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power(source, sink_use); 54559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 54659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 54759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 54859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power(sink, source_use); 54959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 55059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power(source, -sink_use); 55159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 55259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 55359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 55459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 55559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 55659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 55759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 55859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* ----------------------------------------------------------------------------- 55959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Pipeline stream management 56059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 56159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 56259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 56359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_enable - Enable streaming on a pipeline 56459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @pipe: ISS pipeline 56559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @mode: Stream mode (single shot or continuous) 56659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 56759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Walk the entities chain starting at the pipeline output video node and start 56859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * all modules in the chain in the given mode. 56959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 57059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 if successful, or the return value of the failed video::s_stream 57159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * operation otherwise. 57259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 57359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_enable(struct iss_pipeline *pipe, 57459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_pipeline_stream_state mode) 57559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 57659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *entity; 57759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_pad *pad; 57859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 57959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long flags; 58059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 58159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 58259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_lock_irqsave(&pipe->lock, flags); 58359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->state &= ~(ISS_PIPELINE_IDLE_INPUT | ISS_PIPELINE_IDLE_OUTPUT); 58459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_unlock_irqrestore(&pipe->lock, flags); 58559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 58659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->do_propagation = false; 58759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 58859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = &pipe->output->video.entity; 58959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (1) { 59059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = &entity->pads[0]; 59159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!(pad->flags & MEDIA_PAD_FL_SINK)) 59259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 59359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 59459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = media_entity_remote_pad(pad); 59559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pad == NULL || 59659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) 59759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 59859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 59959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = pad->entity; 60059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = media_entity_to_v4l2_subdev(entity); 60159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 60259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_subdev_call(subdev, video, s_stream, mode); 60359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0 && ret != -ENOIOCTLCMD) 60459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 60559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 60659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_print_status(pipe->output->iss); 60759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 60859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 60959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 61059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 61159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_disable - Disable streaming on a pipeline 61259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @pipe: ISS pipeline 61359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 61459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Walk the entities chain starting at the pipeline output video node and stop 61559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * all modules in the chain. Wait synchronously for the modules to be stopped if 61659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * necessary. 61759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 61859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_disable(struct iss_pipeline *pipe) 61959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 62059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *entity; 62159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_pad *pad; 62259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 6236016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart int failure = 0; 6246016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart int ret; 62559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 62659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = &pipe->output->video.entity; 62759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (1) { 62859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = &entity->pads[0]; 62959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!(pad->flags & MEDIA_PAD_FL_SINK)) 63059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 63159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 63259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = media_entity_remote_pad(pad); 63359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pad == NULL || 63459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) 63559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 63659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 63759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = pad->entity; 63859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = media_entity_to_v4l2_subdev(entity); 63959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 6406016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart ret = v4l2_subdev_call(subdev, video, s_stream, 0); 6416016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart if (ret < 0) { 6426016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart dev_dbg(iss->dev, "%s: module stop timeout.\n", 6436016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart subdev->name); 6446016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart failure = -ETIMEDOUT; 6456016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart } 64659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 64759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 6486016498f2b9d72b4f813d7349f0621ccc92c4f5aLaurent Pinchart return failure; 64959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 65059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 65159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 65259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_pipeline_set_stream - Enable/disable streaming on a pipeline 65359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @pipe: ISS pipeline 65459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @state: Stream state (stopped, single shot or continuous) 65559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 65659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Set the pipeline to the given stream state. Pipelines can be started in 65759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * single-shot or continuous mode. 65859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 65959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 if successful, or the return value of the failed video::s_stream 66059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * operation otherwise. The pipeline state is not updated when the operation 66159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * fails, except when stopping the pipeline. 66259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 66359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_pipeline_set_stream(struct iss_pipeline *pipe, 66459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_pipeline_stream_state state) 66559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 66659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 66759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 66859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (state == ISS_PIPELINE_STREAM_STOPPED) 66959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_disable(pipe); 67059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre else 67159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_enable(pipe, state); 67259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 67359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret == 0 || state == ISS_PIPELINE_STREAM_STOPPED) 67459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->stream_state = state; 67559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 67659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 67759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 67859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 67959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 68059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_is_last - Verify if entity has an enabled link to the output 68159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * video node 68259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @me: ISS module's media entity 68359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 68459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Returns 1 if the entity has an enabled link to the output video node or 0 68559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * otherwise. It's true only while pipeline can have no more than one output 68659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * node. 68759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 68859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_is_last(struct media_entity *me) 68959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 69059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_pipeline *pipe; 69159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_pad *pad; 69259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 69359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!me->pipe) 69459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 69559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe = to_iss_pipeline(me); 69659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pipe->stream_state == ISS_PIPELINE_STREAM_STOPPED) 69759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 69859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = media_entity_remote_pad(&pipe->output->pad); 69959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return pad->entity == me; 70059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 70159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 70259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_reset(struct iss_device *iss) 70359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 70459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long timeout = 0; 70559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 70611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_set(iss, OMAP4_ISS_MEM_TOP, ISS_HL_SYSCONFIG, 70711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_HL_SYSCONFIG_SOFTRESET); 70859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 70911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart while (iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_SYSCONFIG) & 71011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_HL_SYSCONFIG_SOFTRESET) { 711ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart if (timeout++ > 100) { 71259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_alert(iss->dev, "cannot reset ISS\n"); 71359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 71459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 715ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart usleep_range(10, 10); 71659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 71759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 71859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 71959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 72059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 72159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_isp_reset(struct iss_device *iss) 72259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 72359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long timeout = 0; 72459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 72559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Fist, ensure that the ISP is IDLE (no transactions happening) */ 72611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_SYSCONFIG, 72711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_STANDBYMODE_MASK, 72811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_STANDBYMODE_SMART); 72959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 73011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_set(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL, ISP5_CTRL_MSTANDBY); 73159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 73259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (;;) { 73311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart if (iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL) & 73411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_CTRL_MSTANDBY_WAIT) 73559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 73659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (timeout++ > 1000) { 73759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_alert(iss->dev, "cannot set ISP5 to standby\n"); 73859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 73959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 740ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart usleep_range(1000, 1500); 74159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 74259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 74359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Now finally, do the reset */ 74411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_set(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_SYSCONFIG, 74511abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_SOFTRESET); 74659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 74759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre timeout = 0; 74811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart while (iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_SYSCONFIG) & 74911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_SOFTRESET) { 75059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (timeout++ > 1000) { 75159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_alert(iss->dev, "cannot reset ISP5\n"); 75259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 75359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 754ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart usleep_range(1000, 1500); 75559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 75659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 75759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 75859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 75959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 76059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 76159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_module_sync_idle - Helper to sync module with its idle state 76259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @me: ISS submodule's media entity 76359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @wait: ISS submodule's wait queue for streamoff/interrupt synchronization 76459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @stopping: flag which tells module wants to stop 76559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 76659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * This function checks if ISS submodule needs to wait for next interrupt. If 76759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * yes, makes the caller to sleep while waiting for such event. 76859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 76959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_module_sync_idle(struct media_entity *me, wait_queue_head_t *wait, 77059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_t *stopping) 77159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 77259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_pipeline *pipe = to_iss_pipeline(me); 77359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_video *video = pipe->output; 77459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long flags; 77559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 77659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pipe->stream_state == ISS_PIPELINE_STREAM_STOPPED || 77759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre (pipe->stream_state == ISS_PIPELINE_STREAM_SINGLESHOT && 77859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre !iss_pipeline_ready(pipe))) 77959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 78059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 78159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* 78259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * atomic_set() doesn't include memory barrier on ARM platform for SMP 78359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * scenario. We'll call it here to avoid race conditions. 78459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 78559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_set(stopping, 1); 78659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre smp_wmb(); 78759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 78859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* 78959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * If module is the last one, it's writing to memory. In this case, 79059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * it's necessary to check if the module is already paused due to 79159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * DMA queue underrun or if it has to wait for next interrupt to be 79259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * idle. 79359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * If it isn't the last one, the function won't sleep but *stopping 79459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * will still be set to warn next submodule caller's interrupt the 79559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * module wants to be idle. 79659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 79759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!iss_pipeline_is_last(me)) 79859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 79959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 80059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_lock_irqsave(&video->qlock, flags); 80159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (video->dmaqueue_flags & ISS_VIDEO_DMAQUEUE_UNDERRUN) { 80259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_unlock_irqrestore(&video->qlock, flags); 80359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_set(stopping, 0); 80459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre smp_wmb(); 80559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 80659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 80759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_unlock_irqrestore(&video->qlock, flags); 80859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!wait_event_timeout(*wait, !atomic_read(stopping), 80959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre msecs_to_jiffies(1000))) { 81059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_set(stopping, 0); 81159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre smp_wmb(); 81259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 81359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 81459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 81559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 81659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 81759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 81859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 81959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_module_sync_is_stopped - Helper to verify if module was stopping 82059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @wait: ISS submodule's wait queue for streamoff/interrupt synchronization 82159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @stopping: flag which tells module wants to stop 82259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 82359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * This function checks if ISS submodule was stopping. In case of yes, it 82459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * notices the caller by setting stopping to 0 and waking up the wait queue. 82559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Returns 1 if it was stopping or 0 otherwise. 82659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 82759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_module_sync_is_stopping(wait_queue_head_t *wait, 82859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_t *stopping) 82959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 83059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (atomic_cmpxchg(stopping, 1, 0)) { 83159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre wake_up(wait); 83259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 1; 83359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 83459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 83559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 83659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 83759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 83859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* -------------------------------------------------------------------------- 83959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Clock management 84059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 84159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 84259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#define ISS_CLKCTRL_MASK (ISS_CLKCTRL_CSI2_A |\ 84359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_CLKCTRL_CSI2_B |\ 84459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_CLKCTRL_ISP) 84559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 84659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int __iss_subclk_update(struct iss_device *iss) 84759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 84859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 clk = 0; 84959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret = 0, timeout = 1000; 85059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 85159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->subclk_resources & OMAP4_ISS_SUBCLK_CSI2_A) 85259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISS_CLKCTRL_CSI2_A; 85359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 85459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->subclk_resources & OMAP4_ISS_SUBCLK_CSI2_B) 85559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISS_CLKCTRL_CSI2_B; 85659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 85759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->subclk_resources & OMAP4_ISS_SUBCLK_ISP) 85859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISS_CLKCTRL_ISP; 85959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 86011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_TOP, ISS_CLKCTRL, 86111abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_CLKCTRL_MASK, clk); 86259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 86359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Wait for HW assertion */ 86459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (--timeout > 0) { 86559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre udelay(1); 86611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart if ((iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_CLKSTAT) & 86711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_CLKCTRL_MASK) == clk) 86859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 86959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 87059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 87159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!timeout) 87259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -EBUSY; 87359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 87459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 87559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 87659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 87759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_subclk_enable(struct iss_device *iss, 87859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_subclk_resource res) 87959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 88059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->subclk_resources |= res; 88159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 88259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return __iss_subclk_update(iss); 88359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 88459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 88559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_subclk_disable(struct iss_device *iss, 88659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_subclk_resource res) 88759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 88859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->subclk_resources &= ~res; 88959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 89059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return __iss_subclk_update(iss); 89159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 89259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 89359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#define ISS_ISP5_CLKCTRL_MASK (ISP5_CTRL_BL_CLK_ENABLE |\ 89459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_ISIF_CLK_ENABLE |\ 89559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_H3A_CLK_ENABLE |\ 89659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_RSZ_CLK_ENABLE |\ 89759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_IPIPE_CLK_ENABLE |\ 89859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_IPIPEIF_CLK_ENABLE) 89959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 90068c03a666c36068428fed43010bde521d4341079Laurent Pinchartstatic void __iss_isp_subclk_update(struct iss_device *iss) 90159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 90259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 clk = 0; 90359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 90459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_ISIF) 90559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_ISIF_CLK_ENABLE; 90659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 90759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_H3A) 90859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_H3A_CLK_ENABLE; 90959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 91059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_RSZ) 91159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_RSZ_CLK_ENABLE; 91259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 91359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_IPIPE) 91459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_IPIPE_CLK_ENABLE; 91559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 91659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_IPIPEIF) 91759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_IPIPEIF_CLK_ENABLE; 91859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 91959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (clk) 92059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_BL_CLK_ENABLE; 92159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 92211abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL, 92311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_ISP5_CLKCTRL_MASK, clk); 92459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 92559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 92668c03a666c36068428fed43010bde521d4341079Laurent Pinchartvoid omap4iss_isp_subclk_enable(struct iss_device *iss, 92759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_isp_subclk_resource res) 92859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 92959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->isp_subclk_resources |= res; 93059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 93168c03a666c36068428fed43010bde521d4341079Laurent Pinchart __iss_isp_subclk_update(iss); 93259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 93359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 93468c03a666c36068428fed43010bde521d4341079Laurent Pinchartvoid omap4iss_isp_subclk_disable(struct iss_device *iss, 93568c03a666c36068428fed43010bde521d4341079Laurent Pinchart enum iss_isp_subclk_resource res) 93659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 93759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->isp_subclk_resources &= ~res; 93859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 93968c03a666c36068428fed43010bde521d4341079Laurent Pinchart __iss_isp_subclk_update(iss); 94059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 94159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 94259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 94359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_enable_clocks - Enable ISS clocks 94459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 94559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 94659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 if successful, or clk_enable return value if any of tthem fails. 94759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 94859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_enable_clocks(struct iss_device *iss) 94959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 9502b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart int ret; 95159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9522b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart ret = clk_enable(iss->iss_fck); 9532b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart if (ret) { 95459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "clk_enable iss_fck failed\n"); 9552b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart return ret; 95659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 95759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9582b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart ret = clk_enable(iss->iss_ctrlclk); 9592b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart if (ret) { 96059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "clk_enable iss_ctrlclk failed\n"); 9612b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart clk_disable(iss->iss_fck); 9622b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart return ret; 96359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 96459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9652b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart return 0; 96659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 96759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 96859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 96959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_disable_clocks - Disable ISS clocks 97059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 97159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 97259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_disable_clocks(struct iss_device *iss) 97359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 97459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_disable(iss->iss_ctrlclk); 97559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_disable(iss->iss_fck); 97659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 97759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 97859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_put_clocks(struct iss_device *iss) 97959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 98059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->iss_fck) { 98159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_put(iss->iss_fck); 98259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_fck = NULL; 98359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 98459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 98559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->iss_ctrlclk) { 98659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_put(iss->iss_ctrlclk); 98759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_ctrlclk = NULL; 98859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 98959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 99059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 99159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_get_clocks(struct iss_device *iss) 99259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 99359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_fck = clk_get(iss->dev, "iss_fck"); 99459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (IS_ERR(iss->iss_fck)) { 99559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "Unable to get iss_fck clock info\n"); 99659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 99759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return PTR_ERR(iss->iss_fck); 99859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 99959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 100059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_ctrlclk = clk_get(iss->dev, "iss_ctrlclk"); 100159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (IS_ERR(iss->iss_ctrlclk)) { 100259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "Unable to get iss_ctrlclk clock info\n"); 100359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 100459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return PTR_ERR(iss->iss_fck); 100559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 100659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 100759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 100859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 100959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 101059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 101159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_get - Acquire the ISS resource. 101259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 101359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Initializes the clocks for the first acquire. 101459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 101559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Increment the reference count on the ISS. If the first reference is taken, 101659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * enable clocks and power-up all submodules. 101759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 101859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return a pointer to the ISS device structure, or NULL if an error occurred. 101959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 102059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestruct iss_device *omap4iss_get(struct iss_device *iss) 102159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 102259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *__iss = iss; 102359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 102459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss == NULL) 102559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return NULL; 102659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 102759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_lock(&iss->iss_mutex); 102859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->ref_count > 0) 102959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto out; 103059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 103159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss_enable_clocks(iss) < 0) { 103259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __iss = NULL; 103359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto out; 103459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 103559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 103659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_enable_interrupts(iss); 103759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 103859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreout: 103959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (__iss != NULL) 104059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->ref_count++; 104159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_unlock(&iss->iss_mutex); 104259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 104359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return __iss; 104459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 104559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 104659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 104759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_put - Release the ISS 104859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 104959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Decrement the reference count on the ISS. If the last reference is released, 105059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * power-down all submodules, disable clocks and free temporary buffers. 105159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 105259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrevoid omap4iss_put(struct iss_device *iss) 105359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 105459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss == NULL) 105559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return; 105659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 105759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_lock(&iss->iss_mutex); 105859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre BUG_ON(iss->ref_count == 0); 105959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (--iss->ref_count == 0) { 106059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_disable_interrupts(iss); 106159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_disable_clocks(iss); 106259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 106359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_unlock(&iss->iss_mutex); 106459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 106559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 106659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_map_mem_resource(struct platform_device *pdev, 106759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss, 106859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_mem_resources res) 106959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 107059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct resource *mem; 107159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 107259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* request the mem region for the camera registers */ 107359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 107459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mem = platform_get_resource(pdev, IORESOURCE_MEM, res); 107559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!mem) { 107659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "no mem resource?\n"); 107759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENODEV; 107859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 107959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 108059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!request_mem_region(mem->start, resource_size(mem), pdev->name)) { 108159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, 108259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre "cannot reserve camera register I/O region\n"); 108359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENODEV; 108459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 108559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->res[res] = mem; 108659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 108759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* map the region */ 108859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->regs[res] = ioremap_nocache(mem->start, resource_size(mem)); 108959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!iss->regs[res]) { 109059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "cannot map camera register I/O region\n"); 109159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENODEV; 109259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 109359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 109459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 109559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 109659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 109759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_unregister_entities(struct iss_device *iss) 109859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 109959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_unregister_entities(&iss->resizer); 110059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipe_unregister_entities(&iss->ipipe); 110159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_unregister_entities(&iss->ipipeif); 110259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_unregister_entities(&iss->csi2a); 110359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_unregister_entities(&iss->csi2b); 110459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 110559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre v4l2_device_unregister(&iss->v4l2_dev); 110659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_device_unregister(&iss->media_dev); 110759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 110859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 110959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 111059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_register_subdev_group - Register a group of subdevices 111159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 111259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @board_info: I2C subdevs board information array 111359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 111459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Register all I2C subdevices in the board_info array. The array must be 111559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * terminated by a NULL entry, and the first entry must be the sensor. 111659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 111759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return a pointer to the sensor media entity if it has been successfully 111859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * registered, or NULL otherwise. 111959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 112059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic struct v4l2_subdev * 112159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreiss_register_subdev_group(struct iss_device *iss, 112259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_subdev_i2c_board_info *board_info) 112359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 112459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *sensor = NULL; 112559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int first; 112659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 112759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (board_info->board_info == NULL) 112859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return NULL; 112959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 113059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (first = 1; board_info->board_info; ++board_info, first = 0) { 113159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 113259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct i2c_adapter *adapter; 113359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 113459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre adapter = i2c_get_adapter(board_info->i2c_adapter_id); 113559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (adapter == NULL) { 1136499226fb196fef838fa38700b96448a2ec41b704Laurent Pinchart dev_err(iss->dev, 1137499226fb196fef838fa38700b96448a2ec41b704Laurent Pinchart "%s: Unable to get I2C adapter %d for device %s\n", 1138499226fb196fef838fa38700b96448a2ec41b704Laurent Pinchart __func__, board_info->i2c_adapter_id, 113959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre board_info->board_info->type); 114059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre continue; 114159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 114259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 114359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = v4l2_i2c_new_subdev_board(&iss->v4l2_dev, adapter, 114459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre board_info->board_info, NULL); 114559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (subdev == NULL) { 114659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "%s: Unable to register subdev %s\n", 114759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __func__, board_info->board_info->type); 114859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre continue; 114959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 115059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 115159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (first) 115259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sensor = subdev; 115359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 115459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 115559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return sensor; 115659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 115759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 115859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_register_entities(struct iss_device *iss) 115959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 116059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_platform_data *pdata = iss->pdata; 116159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_v4l2_subdevs_group *subdevs; 116259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 116359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 116459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->media_dev.dev = iss->dev; 116559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre strlcpy(iss->media_dev.model, "TI OMAP4 ISS", 116659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sizeof(iss->media_dev.model)); 116759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->media_dev.hw_revision = iss->revision; 116859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->media_dev.link_notify = iss_pipeline_link_notify; 116959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_device_register(&iss->media_dev); 117059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 11714cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart dev_err(iss->dev, "%s: Media device registration failed (%d)\n", 117259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __func__, ret); 117359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 117459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 117559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 117659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->v4l2_dev.mdev = &iss->media_dev; 117759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_device_register(iss->dev, &iss->v4l2_dev); 117859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 11794cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart dev_err(iss->dev, "%s: V4L2 device registration failed (%d)\n", 118059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __func__, ret); 118159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 118259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 118359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 118459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Register internal entities */ 118559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csi2_register_entities(&iss->csi2a, &iss->v4l2_dev); 118659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 118759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 118859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 118959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csi2_register_entities(&iss->csi2b, &iss->v4l2_dev); 119059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 119159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 119259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 119359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipeif_register_entities(&iss->ipipeif, &iss->v4l2_dev); 119459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 119559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 119659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 119759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipe_register_entities(&iss->ipipe, &iss->v4l2_dev); 119859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 119959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 120059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 120159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_resizer_register_entities(&iss->resizer, &iss->v4l2_dev); 120259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 120359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 120459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 120559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Register external entities */ 120659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (subdevs = pdata->subdevs; subdevs && subdevs->subdevs; ++subdevs) { 120759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *sensor; 120859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *input; 120959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int flags; 121059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int pad; 121159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 121259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sensor = iss_register_subdev_group(iss, subdevs->subdevs); 121359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (sensor == NULL) 121459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre continue; 121559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 121659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sensor->host_priv = subdevs; 121759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 121859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Connect the sensor to the correct interface module. 121959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * CSI2a receiver through CSIPHY1, or 122059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * CSI2b receiver through CSIPHY2 122159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 122259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre switch (subdevs->interface) { 122359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case ISS_INTERFACE_CSI2A_PHY1: 122459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre input = &iss->csi2a.subdev.entity; 122559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = CSI2_PAD_SINK; 122659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre flags = MEDIA_LNK_FL_IMMUTABLE 122759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre | MEDIA_LNK_FL_ENABLED; 122859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 122959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 123059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case ISS_INTERFACE_CSI2B_PHY2: 123159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre input = &iss->csi2b.subdev.entity; 123259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = CSI2_PAD_SINK; 123359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre flags = MEDIA_LNK_FL_IMMUTABLE 123459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre | MEDIA_LNK_FL_ENABLED; 123559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 123659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 123759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre default: 12384cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart dev_err(iss->dev, "%s: invalid interface type %u\n", 12394cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart __func__, subdevs->interface); 124059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -EINVAL; 124159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 124259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 124359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 124459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link(&sensor->entity, 0, input, pad, 124559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre flags); 124659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 124759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 124859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 124959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 125059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_device_register_subdev_nodes(&iss->v4l2_dev); 125159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 125259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirredone: 125359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 125459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_unregister_entities(iss); 125559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 125659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 125759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 125859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 125959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_cleanup_modules(struct iss_device *iss) 126059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 126159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_cleanup(iss); 126259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_cleanup(iss); 126359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipe_cleanup(iss); 126459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_cleanup(iss); 126559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 126659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 126759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_initialize_modules(struct iss_device *iss) 126859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 126959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 127059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 127159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csiphy_init(iss); 127259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 127359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "CSI PHY initialization failed\n"); 127459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_csiphy; 127559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 127659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 127759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csi2_init(iss); 127859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 127959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "CSI2 initialization failed\n"); 128059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_csi2; 128159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 128259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 128359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipeif_init(iss); 128459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 128559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "ISP IPIPEIF initialization failed\n"); 128659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_ipipeif; 128759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 128859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 128959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipe_init(iss); 129059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 129159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "ISP IPIPE initialization failed\n"); 129259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_ipipe; 129359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 129459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 129559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_resizer_init(iss); 129659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 129759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "ISP RESIZER initialization failed\n"); 129859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_resizer; 129959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 130059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 130159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Connect the submodules. */ 130259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 130359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->csi2a.subdev.entity, CSI2_PAD_SOURCE, 130459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); 130559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 130659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 130759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 130859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 130959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->csi2b.subdev.entity, CSI2_PAD_SOURCE, 131059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); 131159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 131259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 131359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 131459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 131559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, 131659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); 131759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 131859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 131959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 132059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 132159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, 132259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0); 132359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 132459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 132559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 132659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 132759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipe.subdev.entity, IPIPE_PAD_SOURCE_VP, 132859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); 132959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 133059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 133159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 133259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 133359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 133459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_link: 133559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_cleanup(iss); 133659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_resizer: 133759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipe_cleanup(iss); 133859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_ipipe: 133959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_cleanup(iss); 134059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_ipipeif: 134159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_cleanup(iss); 134259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_csi2: 134359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_csiphy: 134459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 134559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 134659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 134759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_probe(struct platform_device *pdev) 134859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 134959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_platform_data *pdata = pdev->dev.platform_data; 135059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss; 13514334fd18e2bcf9c6aa7c535c25b05b462aab05b3Laurent Pinchart unsigned int i; 13524334fd18e2bcf9c6aa7c535c25b05b462aab05b3Laurent Pinchart int ret; 135359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 135459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pdata == NULL) 135559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -EINVAL; 135659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 135759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss = kzalloc(sizeof(*iss), GFP_KERNEL); 135859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!iss) { 135959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(&pdev->dev, "Could not allocate memory\n"); 136059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENOMEM; 136159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 136259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 136359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_init(&iss->iss_mutex); 136459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 136559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->dev = &pdev->dev; 136659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->pdata = pdata; 136759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 136859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->raw_dmamask = DMA_BIT_MASK(32); 136959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->dev->dma_mask = &iss->raw_dmamask; 137059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->dev->coherent_dma_mask = DMA_BIT_MASK(32); 137159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 137259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre platform_set_drvdata(pdev, iss); 137359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 137459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Clocks */ 137559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_map_mem_resource(pdev, iss, OMAP4_ISS_MEM_TOP); 137659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 137759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error; 137859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 137959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_get_clocks(iss); 138059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 138159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error; 138259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 138359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (omap4iss_get(iss) == NULL) 138459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error; 138559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 138659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_reset(iss); 138759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 138859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 138959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 139011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss->revision = iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_REVISION); 139159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_info(iss->dev, "Revision %08x found\n", iss->revision); 139259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 139359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 1; i < OMAP4_ISS_MEM_LAST; i++) { 139459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_map_mem_resource(pdev, iss, i); 139559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret) 139659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 139759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 139859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 139959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Configure BTE BW_LIMITER field to max recommended value (1 GB) */ 140011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_BTE, BTE_CTRL, 140111abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart BTE_CTRL_BW_LIMITER_MASK, 140211abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart 18 << BTE_CTRL_BW_LIMITER_SHIFT); 140359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 140459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Perform ISP reset */ 140559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_subclk_enable(iss, OMAP4_ISS_SUBCLK_ISP); 140659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 140759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 140859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 140959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_isp_reset(iss); 141059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 141159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 141259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 141359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_info(iss->dev, "ISP Revision %08x found\n", 141411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_REVISION)); 141559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 141659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Interrupt */ 141759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->irq_num = platform_get_irq(pdev, 0); 141859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->irq_num <= 0) { 141959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "No IRQ resource\n"); 142059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -ENODEV; 142159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 142259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 142359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 142459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (request_irq(iss->irq_num, iss_isr, IRQF_SHARED, "OMAP4 ISS", iss)) { 142559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "Unable to request IRQ\n"); 142659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -EINVAL; 142759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 142859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 142959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 143059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Entities */ 143159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_initialize_modules(iss); 143259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 143359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_irq; 143459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 143559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_register_entities(iss); 143659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 143759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_modules; 143859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 143959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_put(iss); 144059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 144159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 144259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 144359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_modules: 144459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_cleanup_modules(iss); 144559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_irq: 144659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre free_irq(iss->irq_num, iss); 144759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_iss: 144859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_put(iss); 144959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror: 145059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 145159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 145259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 0; i < OMAP4_ISS_MEM_LAST; i++) { 145359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->regs[i]) { 145459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iounmap(iss->regs[i]); 145559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->regs[i] = NULL; 145659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 145759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 145859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->res[i]) { 145959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre release_mem_region(iss->res[i]->start, 146059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre resource_size(iss->res[i])); 146159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->res[i] = NULL; 146259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 146359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 146459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre platform_set_drvdata(pdev, NULL); 146559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 146659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_destroy(&iss->iss_mutex); 146759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre kfree(iss); 146859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 146959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 147059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 147159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 147259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_remove(struct platform_device *pdev) 147359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 147459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss = platform_get_drvdata(pdev); 14754334fd18e2bcf9c6aa7c535c25b05b462aab05b3Laurent Pinchart unsigned int i; 147659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 147759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_unregister_entities(iss); 147859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_cleanup_modules(iss); 147959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 148059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre free_irq(iss->irq_num, iss); 148159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 148259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 148359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 0; i < OMAP4_ISS_MEM_LAST; i++) { 148459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->regs[i]) { 148559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iounmap(iss->regs[i]); 148659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->regs[i] = NULL; 148759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 148859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 148959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->res[i]) { 149059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre release_mem_region(iss->res[i]->start, 149159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre resource_size(iss->res[i])); 149259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->res[i] = NULL; 149359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 149459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 149559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 149659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre kfree(iss); 149759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 149859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 149959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 150059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 150159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic struct platform_device_id omap4iss_id_table[] = { 150259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre { "omap4iss", 0 }, 150359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre { }, 150459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre}; 150559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_DEVICE_TABLE(platform, omap4iss_id_table); 150659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 150759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic struct platform_driver iss_driver = { 150859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .probe = iss_probe, 150959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .remove = iss_remove, 151059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .id_table = omap4iss_id_table, 151159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .driver = { 151259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .owner = THIS_MODULE, 151359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .name = "omap4iss", 151459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre }, 151559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre}; 151659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 151759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirremodule_platform_driver(iss_driver); 151859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 151959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_DESCRIPTION("TI OMAP4 ISS driver"); 152059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_AUTHOR("Sergio Aguirre <sergio.a.aguirre@gmail.com>"); 152159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_LICENSE("GPL"); 152259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_VERSION(ISS_VIDEO_DRIVER_VERSION); 1523