iss.c revision 11abbfd30f74f79fe78d9ff79cc3fcfa86a975c5
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/* 7059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_enable_interrupts - Enable ISS interrupts. 7159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 7259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 7359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_enable_interrupts(struct iss_device *iss) 7459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 7559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre static const u32 hl_irq = ISS_HL_IRQ_CSIA | ISS_HL_IRQ_CSIB | ISS_HL_IRQ_ISP(0); 7659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 7759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Enable HL interrupts */ 7811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQSTATUS(5), hl_irq); 7911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQENABLE_SET(5), hl_irq); 8059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 8159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 8259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 8359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 8459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_disable_interrupts - Disable ISS interrupts. 8559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 8659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 8759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_disable_interrupts(struct iss_device *iss) 8859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 8911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQENABLE_CLR(5), -1); 9059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 9159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 9359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_isp_enable_interrupts - Enable ISS ISP interrupts. 9459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 9559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 9659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrevoid omap4iss_isp_enable_interrupts(struct iss_device *iss) 9759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 9859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre static const u32 isp_irq = ISP5_IRQ_OCP_ERR | 99ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart ISP5_IRQ_RSZ_FIFO_IN_BLK_ERR | 10059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_IRQ_RSZ_FIFO_OVF | 10159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_IRQ_RSZ_INT_DMA | 102ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart ISP5_IRQ_ISIF_INT(0); 10359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 10459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Enable ISP interrupts */ 10511abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQSTATUS(0), isp_irq); 10611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQENABLE_SET(0), 10711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart isp_irq); 10859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 10959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 11059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 11159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_isp_disable_interrupts - Disable ISS interrupts. 11259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 11359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 11459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrevoid omap4iss_isp_disable_interrupts(struct iss_device *iss) 11559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 11611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQENABLE_CLR(0), -1); 11759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 11859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 11959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_get_external_info(struct iss_pipeline *pipe, 12059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_link *link) 12159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 12259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss = 12359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre container_of(pipe, struct iss_video, pipe)->iss; 12459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev_format fmt; 125ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart struct v4l2_ctrl *ctrl; 12659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 12759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 12859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!pipe->external) 12959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 13059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 13159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pipe->external_rate) 13259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 13359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 13459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre memset(&fmt, 0, sizeof(fmt)); 13559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 13659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre fmt.pad = link->source->index; 13759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; 13859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_subdev_call(media_entity_to_v4l2_subdev(link->sink->entity), 13959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad, get_fmt, NULL, &fmt); 14059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 14159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -EPIPE; 14259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 14359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->external_bpp = omap4iss_video_format_info(fmt.format.code)->bpp; 14459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 145ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart ctrl = v4l2_ctrl_find(pipe->external->ctrl_handler, 146ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart V4L2_CID_PIXEL_RATE); 147ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart if (ctrl == NULL) { 14859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_warn(iss->dev, "no pixel rate control in subdev %s\n", 14959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->external->name); 150ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart return -EPIPE; 15159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 15259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 153ea72717e961d1166882370a87876bfeacc967eb0Laurent Pinchart pipe->external_rate = v4l2_ctrl_g_ctrl_int64(ctrl); 15459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 15559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 15659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 15759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 15859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 15959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Configure the bridge. Valid inputs are 16059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 16159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * IPIPEIF_INPUT_CSI2A: CSI2a receiver 16259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * IPIPEIF_INPUT_CSI2B: CSI2b receiver 16359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 16459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * The bridge and lane shifter are configured according to the selected input 16559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * and the ISP platform data. 16659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 16759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrevoid omap4iss_configure_bridge(struct iss_device *iss, 16859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum ipipeif_input_entity input) 16959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 17059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 issctrl_val; 17159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 isp5ctrl_val; 17259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 17311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart issctrl_val = iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_CTRL); 17459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val &= ~ISS_CTRL_INPUT_SEL_MASK; 17559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val &= ~ISS_CTRL_CLK_DIV_MASK; 17659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 17711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart isp5ctrl_val = iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL); 17859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 17959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre switch (input) { 18059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case IPIPEIF_INPUT_CSI2A: 18159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val |= ISS_CTRL_INPUT_SEL_CSI2A; 18259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 18359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 18459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case IPIPEIF_INPUT_CSI2B: 18559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val |= ISS_CTRL_INPUT_SEL_CSI2B; 18659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 18759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 18859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre default: 18959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return; 19059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 19159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 19259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre issctrl_val |= ISS_CTRL_SYNC_DETECT_VS_RAISING; 19359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 194cce093ee559779d376fbd767d70a5b0ce4cf015aLaurent Pinchart isp5ctrl_val |= ISP5_CTRL_VD_PULSE_EXT | ISP5_CTRL_PSYNC_CLK_SEL | 195cce093ee559779d376fbd767d70a5b0ce4cf015aLaurent Pinchart ISP5_CTRL_SYNC_ENABLE; 19659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 19711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_CTRL, issctrl_val); 19811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL, isp5ctrl_val); 19959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 20059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 2015122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#if defined(DEBUG) && defined(ISS_ISR_DEBUG) 202380df42b5730541a740735052d61e9d2ee09d0ceLaurent Pinchartstatic void iss_isr_dbg(struct iss_device *iss, u32 irqstatus) 20359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 2045122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart static const char * const name[] = { 2055122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_0", 2065122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_1", 2075122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_2", 2085122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISP_3", 2095122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CSIA", 2105122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CSIB", 2115122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_0", 2125122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_1", 2135122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_2", 2145122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_3", 2155122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CBUFF", 2165122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "BTE", 2175122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_0", 2185122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_1", 2195122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_2", 2205122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "SIMCOP_3", 2215122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "CCP2_8", 2225122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "HS_VS", 2235122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "18", 2245122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "19", 2255122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "20", 2265122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "21", 2275122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "22", 2285122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "23", 2295122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "24", 2305122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "25", 2315122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "26", 2325122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "27", 2335122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "28", 2345122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "29", 2355122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "30", 2365122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "31", 23759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre }; 2385122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart unsigned int i; 23959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 24059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_dbg(iss->dev, "ISS IRQ: "); 24159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 24259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 0; i < ARRAY_SIZE(name); i++) { 24359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if ((1 << i) & irqstatus) 24459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pr_cont("%s ", name[i]); 24559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 24659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pr_cont("\n"); 24759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 24859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 249380df42b5730541a740735052d61e9d2ee09d0ceLaurent Pinchartstatic void iss_isp_isr_dbg(struct iss_device *iss, u32 irqstatus) 2505122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart{ 2515122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart static const char * const name[] = { 2525122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_0", 2535122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_1", 2545122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_2", 2555122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "ISIF_3", 2565122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEREQ", 2575122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPELAST_PIX", 2585122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEDMA", 2595122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEBSC", 2605122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEHST", 2615122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPEIF", 2625122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "AEW", 2635122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "AF", 2645122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "H3A", 2655122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_REG", 2665122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_LAST_PIX", 2675122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_DMA", 2685122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_CYC_RZA", 2695122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_CYC_RZB", 2705122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_FIFO_OVF", 2715122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_FIFO_IN_BLK_ERR", 2725122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "20", 2735122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "21", 2745122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_EOF0", 2755122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "RSZ_EOF1", 2765122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "H3A_EOF", 2775122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_EOF", 2785122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "26", 2795122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_DPC_INI", 2805122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_DPC_RNEW0", 2815122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "IPIPE_DPC_RNEW1", 2825122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "30", 2835122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart "OCP_ERR", 2845122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart }; 2855122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart unsigned int i; 2865122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 2875122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart dev_dbg(iss->dev, "ISP IRQ: "); 2885122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 2895122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart for (i = 0; i < ARRAY_SIZE(name); i++) { 2905122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart if ((1 << i) & irqstatus) 2915122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart pr_cont("%s ", name[i]); 2925122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart } 2935122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart pr_cont("\n"); 2945122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart} 2955122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#endif 2965122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 29759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 29859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_isr - Interrupt Service Routine for ISS module. 29959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @irq: Not used currently. 30059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @_iss: Pointer to the OMAP4 ISS device 30159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 30259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Handles the corresponding callback if plugged in. 30359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 30459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Returns IRQ_HANDLED when IRQ was correctly handled, or IRQ_NONE when the 30559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * IRQ wasn't handled. 30659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 30759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic irqreturn_t iss_isr(int irq, void *_iss) 30859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 309ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart static const u32 ipipeif_events = ISP5_IRQ_IPIPEIF_IRQ | 310ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart ISP5_IRQ_ISIF_INT(0); 311ade1ec3736c432981fefaa07b20e818c8501a44eLaurent Pinchart static const u32 resizer_events = ISP5_IRQ_RSZ_FIFO_IN_BLK_ERR | 31259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_IRQ_RSZ_FIFO_OVF | 31359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_IRQ_RSZ_INT_DMA; 31459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss = _iss; 31559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 irqstatus; 31659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 31711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart irqstatus = iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQSTATUS(5)); 31811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_TOP, ISS_HL_IRQSTATUS(5), irqstatus); 31959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 32059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (irqstatus & ISS_HL_IRQ_CSIA) 32159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_isr(&iss->csi2a); 32259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 32359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (irqstatus & ISS_HL_IRQ_CSIB) 32459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_isr(&iss->csi2b); 32559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 32659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (irqstatus & ISS_HL_IRQ_ISP(0)) { 32711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart u32 isp_irqstatus = iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, 32811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_IRQSTATUS(0)); 32911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_IRQSTATUS(0), 33011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart isp_irqstatus); 33159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 33259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (isp_irqstatus & ISP5_IRQ_OCP_ERR) 33359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_dbg(iss->dev, "ISP5 OCP Error!\n"); 33459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 33559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (isp_irqstatus & ipipeif_events) { 33659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_isr(&iss->ipipeif, 33759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre isp_irqstatus & ipipeif_events); 33859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 33959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 34059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (isp_irqstatus & resizer_events) 34159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_isr(&iss->resizer, 34259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre isp_irqstatus & resizer_events); 3435122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart 3445122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#if defined(DEBUG) && defined(ISS_ISR_DEBUG) 3455122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart iss_isp_isr_dbg(iss, isp_irqstatus); 3465122f6a26d4e706653e1677708594b82b1ec7cd3Laurent Pinchart#endif 34759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 34859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 34959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_flush(iss); 35059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 35159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#if defined(DEBUG) && defined(ISS_ISR_DEBUG) 35259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_isr_dbg(iss, irqstatus); 35359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#endif 35459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 35559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return IRQ_HANDLED; 35659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 35759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 35859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* ----------------------------------------------------------------------------- 35959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Pipeline power management 36059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 36159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Entities must be powered up when part of a pipeline that contains at least 36259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * one open video device node. 36359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 36459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * To achieve this use the entity use_count field to track the number of users. 36559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * For entities corresponding to video device nodes the use_count field stores 36659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * the users count of the node. For entities corresponding to subdevs the 36759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * use_count field stores the total number of users of all video device nodes 36859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * in the pipeline. 36959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 37059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * The omap4iss_pipeline_pm_use() function must be called in the open() and 37159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * close() handlers of video device nodes. It increments or decrements the use 37259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * count of all subdev entities in the pipeline. 37359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 37459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * To react to link management on powered pipelines, the link setup notification 37559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * callback updates the use count of all entities in the source and sink sides 37659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * of the link. 37759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 37859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 37959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 38059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_pm_use_count - Count the number of users of a pipeline 38159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 38259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 38359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return the total number of users of all video device nodes in the pipeline. 38459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 38559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_pm_use_count(struct media_entity *entity) 38659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 38759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity_graph graph; 38859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int use = 0; 38959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 39059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_graph_walk_start(&graph, entity); 39159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 39259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while ((entity = media_entity_graph_walk_next(&graph))) { 39359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE) 39459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre use += entity->use_count; 39559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 39659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 39759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return use; 39859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 39959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 40059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 40159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_pm_power_one - Apply power change to an entity 40259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 40359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @change: Use count change 40459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 40559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Change the entity use count by @change. If the entity is a subdev update its 40659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * power state by calling the core::s_power operation when the use count goes 40759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * from 0 to != 0 or from != 0 to 0. 40859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 40959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. 41059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 41159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_pm_power_one(struct media_entity *entity, int change) 41259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 41359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 41459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 41559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = media_entity_type(entity) == MEDIA_ENT_T_V4L2_SUBDEV 41659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ? media_entity_to_v4l2_subdev(entity) : NULL; 41759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 41859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (entity->use_count == 0 && change > 0 && subdev != NULL) { 41959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 42059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 42159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_subdev_call(subdev, core, s_power, 1); 42259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0 && ret != -ENOIOCTLCMD) 42359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 42459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 42559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 42659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity->use_count += change; 42759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre WARN_ON(entity->use_count < 0); 42859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 42959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (entity->use_count == 0 && change < 0 && subdev != NULL) 43059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre v4l2_subdev_call(subdev, core, s_power, 0); 43159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 43259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 43359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 43459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 43559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 43659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_pm_power - Apply power change to all entities in a pipeline 43759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 43859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @change: Use count change 43959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 44059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Walk the pipeline to update the use count and the power state of all non-node 44159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * entities. 44259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 44359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. 44459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 44559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_pm_power(struct media_entity *entity, int change) 44659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 44759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity_graph graph; 44859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *first = entity; 44959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret = 0; 45059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 45159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!change) 45259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 45359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 45459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_graph_walk_start(&graph, entity); 45559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 45659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (!ret && (entity = media_entity_graph_walk_next(&graph))) 45759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE) 45859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power_one(entity, change); 45959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 46059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!ret) 46159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 46259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 46359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_graph_walk_start(&graph, first); 46459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 46559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while ((first = media_entity_graph_walk_next(&graph)) 46659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre && first != entity) 46759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (media_entity_type(first) != MEDIA_ENT_T_DEVNODE) 46859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power_one(first, -change); 46959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 47059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 47159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 47259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 47359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 47459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_pipeline_pm_use - Update the use count of an entity 47559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @entity: The entity 47659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @use: Use (1) or stop using (0) the entity 47759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 47859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Update the use count of all entities in the pipeline and power entities on or 47959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * off accordingly. 48059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 48159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. Powering entities 48259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * off is assumed to never fail. No failure can occur when the use parameter is 48359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * set to 0. 48459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 48559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_pipeline_pm_use(struct media_entity *entity, int use) 48659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 48759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int change = use ? 1 : -1; 48859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 48959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 49059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_lock(&entity->parent->graph_mutex); 49159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 49259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Apply use count to node. */ 49359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity->use_count += change; 49459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre WARN_ON(entity->use_count < 0); 49559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 49659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Apply power change to connected non-nodes. */ 49759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power(entity, change); 49859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 49959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity->use_count -= change; 50059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 50159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_unlock(&entity->parent->graph_mutex); 50259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 50359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 50459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 50559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 50659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 50759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_link_notify - Link management notification callback 50859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @link: The link 50959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @flags: New link flags that will be applied 51059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 51159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * React to link management on powered pipelines by updating the use count of 51259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * all entities in the source and sink sides of the link. Entities are powered 51359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * on or off accordingly. 51459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 51559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 on success or a negative error code on failure. Powering entities 51659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * off is assumed to never fail. This function will not fail for disconnection 51759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * events. 51859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 51959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_link_notify(struct media_link *link, u32 flags, 52059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int notification) 52159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 52259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *source = link->source->entity; 52359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *sink = link->sink->entity; 52459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int source_use = iss_pipeline_pm_use_count(source); 52559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int sink_use = iss_pipeline_pm_use_count(sink); 52659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 52759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 52859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && 52959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre !(link->flags & MEDIA_LNK_FL_ENABLED)) { 53059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Powering off entities is assumed to never fail. */ 53159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power(source, -sink_use); 53259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power(sink, -source_use); 53359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 53459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 53559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 53659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && 53759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre (flags & MEDIA_LNK_FL_ENABLED)) { 53859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power(source, sink_use); 53959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 54059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 54159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 54259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_pm_power(sink, source_use); 54359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 54459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_pipeline_pm_power(source, -sink_use); 54559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 54659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 54759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 54859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 54959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 55059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 55159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 55259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* ----------------------------------------------------------------------------- 55359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Pipeline stream management 55459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 55559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 55659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 55759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_enable - Enable streaming on a pipeline 55859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @pipe: ISS pipeline 55959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @mode: Stream mode (single shot or continuous) 56059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 56159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Walk the entities chain starting at the pipeline output video node and start 56259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * all modules in the chain in the given mode. 56359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 56459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 if successful, or the return value of the failed video::s_stream 56559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * operation otherwise. 56659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 56759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_enable(struct iss_pipeline *pipe, 56859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_pipeline_stream_state mode) 56959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 57059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *entity; 57159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_pad *pad; 57259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 57359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long flags; 57459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 57559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 57659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_lock_irqsave(&pipe->lock, flags); 57759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->state &= ~(ISS_PIPELINE_IDLE_INPUT | ISS_PIPELINE_IDLE_OUTPUT); 57859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_unlock_irqrestore(&pipe->lock, flags); 57959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 58059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->do_propagation = false; 58159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 58259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = &pipe->output->video.entity; 58359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (1) { 58459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = &entity->pads[0]; 58559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!(pad->flags & MEDIA_PAD_FL_SINK)) 58659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 58759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 58859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = media_entity_remote_pad(pad); 58959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pad == NULL || 59059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) 59159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 59259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 59359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = pad->entity; 59459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = media_entity_to_v4l2_subdev(entity); 59559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 59659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_subdev_call(subdev, video, s_stream, mode); 59759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0 && ret != -ENOIOCTLCMD) 59859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 59959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 60059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_print_status(pipe->output->iss); 60159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 60259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 60359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 60459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 60559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_disable - Disable streaming on a pipeline 60659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @pipe: ISS pipeline 60759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 60859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Walk the entities chain starting at the pipeline output video node and stop 60959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * all modules in the chain. Wait synchronously for the modules to be stopped if 61059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * necessary. 61159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 61259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_disable(struct iss_pipeline *pipe) 61359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 61459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *entity; 61559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_pad *pad; 61659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 61759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 61859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = &pipe->output->video.entity; 61959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (1) { 62059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = &entity->pads[0]; 62159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!(pad->flags & MEDIA_PAD_FL_SINK)) 62259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 62359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 62459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = media_entity_remote_pad(pad); 62559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pad == NULL || 62659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) 62759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 62859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 62959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre entity = pad->entity; 63059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = media_entity_to_v4l2_subdev(entity); 63159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 63259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre v4l2_subdev_call(subdev, video, s_stream, 0); 63359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 63459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 63557da5e47ccf3d727958aeef7675154d48635fa09Laurent Pinchart return 0; 63659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 63759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 63859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 63959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_pipeline_set_stream - Enable/disable streaming on a pipeline 64059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @pipe: ISS pipeline 64159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @state: Stream state (stopped, single shot or continuous) 64259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 64359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Set the pipeline to the given stream state. Pipelines can be started in 64459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * single-shot or continuous mode. 64559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 64659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 if successful, or the return value of the failed video::s_stream 64759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * operation otherwise. The pipeline state is not updated when the operation 64859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * fails, except when stopping the pipeline. 64959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 65059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_pipeline_set_stream(struct iss_pipeline *pipe, 65159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_pipeline_stream_state state) 65259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 65359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 65459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 65559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (state == ISS_PIPELINE_STREAM_STOPPED) 65659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_disable(pipe); 65759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre else 65859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_pipeline_enable(pipe, state); 65959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 66059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret == 0 || state == ISS_PIPELINE_STREAM_STOPPED) 66159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe->stream_state = state; 66259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 66359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 66459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 66559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 66659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 66759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_pipeline_is_last - Verify if entity has an enabled link to the output 66859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * video node 66959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @me: ISS module's media entity 67059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 67159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Returns 1 if the entity has an enabled link to the output video node or 0 67259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * otherwise. It's true only while pipeline can have no more than one output 67359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * node. 67459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 67559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_pipeline_is_last(struct media_entity *me) 67659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 67759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_pipeline *pipe; 67859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_pad *pad; 67959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 68059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!me->pipe) 68159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 68259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pipe = to_iss_pipeline(me); 68359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pipe->stream_state == ISS_PIPELINE_STREAM_STOPPED) 68459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 68559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = media_entity_remote_pad(&pipe->output->pad); 68659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return pad->entity == me; 68759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 68859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 68959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_reset(struct iss_device *iss) 69059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 69159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long timeout = 0; 69259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 69311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_set(iss, OMAP4_ISS_MEM_TOP, ISS_HL_SYSCONFIG, 69411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_HL_SYSCONFIG_SOFTRESET); 69559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 69611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart while (iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_SYSCONFIG) & 69711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_HL_SYSCONFIG_SOFTRESET) { 698ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart if (timeout++ > 100) { 69959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_alert(iss->dev, "cannot reset ISS\n"); 70059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 70159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 702ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart usleep_range(10, 10); 70359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 70459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 70559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 70659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 70759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 70859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_isp_reset(struct iss_device *iss) 70959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 71059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long timeout = 0; 71159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 71259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Fist, ensure that the ISP is IDLE (no transactions happening) */ 71311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_SYSCONFIG, 71411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_STANDBYMODE_MASK, 71511abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_STANDBYMODE_SMART); 71659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 71711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_set(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL, ISP5_CTRL_MSTANDBY); 71859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 71959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (;;) { 72011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart if (iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL) & 72111abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_CTRL_MSTANDBY_WAIT) 72259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 72359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (timeout++ > 1000) { 72459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_alert(iss->dev, "cannot set ISP5 to standby\n"); 72559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 72659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 727ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart usleep_range(1000, 1500); 72859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 72959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 73059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Now finally, do the reset */ 73111abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_set(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_SYSCONFIG, 73211abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_SOFTRESET); 73359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 73459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre timeout = 0; 73511abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart while (iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_SYSCONFIG) & 73611abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISP5_SYSCONFIG_SOFTRESET) { 73759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (timeout++ > 1000) { 73859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_alert(iss->dev, "cannot reset ISP5\n"); 73959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 74059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 741ca6f19b1cf0fac0fdf1ef06d6bed0f07f8f37ae9Laurent Pinchart usleep_range(1000, 1500); 74259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 74359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 74459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 74559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 74659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 74759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 74859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_module_sync_idle - Helper to sync module with its idle state 74959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @me: ISS submodule's media entity 75059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @wait: ISS submodule's wait queue for streamoff/interrupt synchronization 75159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @stopping: flag which tells module wants to stop 75259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 75359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * This function checks if ISS submodule needs to wait for next interrupt. If 75459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * yes, makes the caller to sleep while waiting for such event. 75559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 75659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_module_sync_idle(struct media_entity *me, wait_queue_head_t *wait, 75759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_t *stopping) 75859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 75959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_pipeline *pipe = to_iss_pipeline(me); 76059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_video *video = pipe->output; 76159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned long flags; 76259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 76359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pipe->stream_state == ISS_PIPELINE_STREAM_STOPPED || 76459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre (pipe->stream_state == ISS_PIPELINE_STREAM_SINGLESHOT && 76559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre !iss_pipeline_ready(pipe))) 76659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 76759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 76859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* 76959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * atomic_set() doesn't include memory barrier on ARM platform for SMP 77059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * scenario. We'll call it here to avoid race conditions. 77159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 77259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_set(stopping, 1); 77359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre smp_wmb(); 77459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 77559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* 77659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * If module is the last one, it's writing to memory. In this case, 77759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * it's necessary to check if the module is already paused due to 77859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * DMA queue underrun or if it has to wait for next interrupt to be 77959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * idle. 78059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * If it isn't the last one, the function won't sleep but *stopping 78159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * will still be set to warn next submodule caller's interrupt the 78259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * module wants to be idle. 78359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 78459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!iss_pipeline_is_last(me)) 78559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 78659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 78759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_lock_irqsave(&video->qlock, flags); 78859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (video->dmaqueue_flags & ISS_VIDEO_DMAQUEUE_UNDERRUN) { 78959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_unlock_irqrestore(&video->qlock, flags); 79059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_set(stopping, 0); 79159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre smp_wmb(); 79259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 79359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 79459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre spin_unlock_irqrestore(&video->qlock, flags); 79559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!wait_event_timeout(*wait, !atomic_read(stopping), 79659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre msecs_to_jiffies(1000))) { 79759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_set(stopping, 0); 79859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre smp_wmb(); 79959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ETIMEDOUT; 80059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 80159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 80259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 80359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 80459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 80559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 80659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_module_sync_is_stopped - Helper to verify if module was stopping 80759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @wait: ISS submodule's wait queue for streamoff/interrupt synchronization 80859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @stopping: flag which tells module wants to stop 80959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 81059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * This function checks if ISS submodule was stopping. In case of yes, it 81159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * notices the caller by setting stopping to 0 and waking up the wait queue. 81259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Returns 1 if it was stopping or 0 otherwise. 81359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 81459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_module_sync_is_stopping(wait_queue_head_t *wait, 81559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre atomic_t *stopping) 81659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 81759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (atomic_cmpxchg(stopping, 1, 0)) { 81859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre wake_up(wait); 81959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 1; 82059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 82159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 82259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 82359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 82459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 82559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* -------------------------------------------------------------------------- 82659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Clock management 82759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 82859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 82959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#define ISS_CLKCTRL_MASK (ISS_CLKCTRL_CSI2_A |\ 83059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_CLKCTRL_CSI2_B |\ 83159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISS_CLKCTRL_ISP) 83259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 83359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int __iss_subclk_update(struct iss_device *iss) 83459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 83559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 clk = 0; 83659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret = 0, timeout = 1000; 83759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 83859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->subclk_resources & OMAP4_ISS_SUBCLK_CSI2_A) 83959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISS_CLKCTRL_CSI2_A; 84059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 84159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->subclk_resources & OMAP4_ISS_SUBCLK_CSI2_B) 84259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISS_CLKCTRL_CSI2_B; 84359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 84459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->subclk_resources & OMAP4_ISS_SUBCLK_ISP) 84559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISS_CLKCTRL_ISP; 84659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 84711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_TOP, ISS_CLKCTRL, 84811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_CLKCTRL_MASK, clk); 84959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 85059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Wait for HW assertion */ 85159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre while (--timeout > 0) { 85259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre udelay(1); 85311abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart if ((iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_CLKSTAT) & 85411abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_CLKCTRL_MASK) == clk) 85559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 85659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 85759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 85859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!timeout) 85959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -EBUSY; 86059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 86159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 86259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 86359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 86459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_subclk_enable(struct iss_device *iss, 86559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_subclk_resource res) 86659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 86759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->subclk_resources |= res; 86859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 86959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return __iss_subclk_update(iss); 87059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 87159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 87259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreint omap4iss_subclk_disable(struct iss_device *iss, 87359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_subclk_resource res) 87459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 87559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->subclk_resources &= ~res; 87659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 87759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return __iss_subclk_update(iss); 87859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 87959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 88059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre#define ISS_ISP5_CLKCTRL_MASK (ISP5_CTRL_BL_CLK_ENABLE |\ 88159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_ISIF_CLK_ENABLE |\ 88259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_H3A_CLK_ENABLE |\ 88359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_RSZ_CLK_ENABLE |\ 88459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_IPIPE_CLK_ENABLE |\ 88559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ISP5_CTRL_IPIPEIF_CLK_ENABLE) 88659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 88768c03a666c36068428fed43010bde521d4341079Laurent Pinchartstatic void __iss_isp_subclk_update(struct iss_device *iss) 88859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 88959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre u32 clk = 0; 89059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 89159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_ISIF) 89259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_ISIF_CLK_ENABLE; 89359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 89459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_H3A) 89559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_H3A_CLK_ENABLE; 89659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 89759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_RSZ) 89859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_RSZ_CLK_ENABLE; 89959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 90059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_IPIPE) 90159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_IPIPE_CLK_ENABLE; 90259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 90359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->isp_subclk_resources & OMAP4_ISS_ISP_SUBCLK_IPIPEIF) 90459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_IPIPEIF_CLK_ENABLE; 90559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 90659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (clk) 90759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk |= ISP5_CTRL_BL_CLK_ENABLE; 90859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 90911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_CTRL, 91011abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart ISS_ISP5_CLKCTRL_MASK, clk); 91159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 91259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 91368c03a666c36068428fed43010bde521d4341079Laurent Pinchartvoid omap4iss_isp_subclk_enable(struct iss_device *iss, 91459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_isp_subclk_resource res) 91559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 91659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->isp_subclk_resources |= res; 91759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 91868c03a666c36068428fed43010bde521d4341079Laurent Pinchart __iss_isp_subclk_update(iss); 91959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 92059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 92168c03a666c36068428fed43010bde521d4341079Laurent Pinchartvoid omap4iss_isp_subclk_disable(struct iss_device *iss, 92268c03a666c36068428fed43010bde521d4341079Laurent Pinchart enum iss_isp_subclk_resource res) 92359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 92459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->isp_subclk_resources &= ~res; 92559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 92668c03a666c36068428fed43010bde521d4341079Laurent Pinchart __iss_isp_subclk_update(iss); 92759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 92859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 92959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 93059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_enable_clocks - Enable ISS clocks 93159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 93259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 93359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return 0 if successful, or clk_enable return value if any of tthem fails. 93459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 93559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_enable_clocks(struct iss_device *iss) 93659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 9372b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart int ret; 93859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9392b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart ret = clk_enable(iss->iss_fck); 9402b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart if (ret) { 94159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "clk_enable iss_fck failed\n"); 9422b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart return ret; 94359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 94459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9452b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart ret = clk_enable(iss->iss_ctrlclk); 9462b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart if (ret) { 94759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "clk_enable iss_ctrlclk failed\n"); 9482b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart clk_disable(iss->iss_fck); 9492b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart return ret; 95059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 95159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 9522b16b44a1c44814ed00cf750d20f3c404b5d4e48Laurent Pinchart return 0; 95359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 95459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 95559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 95659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_disable_clocks - Disable ISS clocks 95759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 95859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 95959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_disable_clocks(struct iss_device *iss) 96059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 96159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_disable(iss->iss_ctrlclk); 96259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_disable(iss->iss_fck); 96359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 96459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 96559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_put_clocks(struct iss_device *iss) 96659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 96759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->iss_fck) { 96859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_put(iss->iss_fck); 96959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_fck = NULL; 97059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 97159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 97259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->iss_ctrlclk) { 97359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre clk_put(iss->iss_ctrlclk); 97459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_ctrlclk = NULL; 97559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 97659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 97759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 97859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_get_clocks(struct iss_device *iss) 97959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 98059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_fck = clk_get(iss->dev, "iss_fck"); 98159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (IS_ERR(iss->iss_fck)) { 98259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "Unable to get iss_fck clock info\n"); 98359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 98459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return PTR_ERR(iss->iss_fck); 98559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 98659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 98759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->iss_ctrlclk = clk_get(iss->dev, "iss_ctrlclk"); 98859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (IS_ERR(iss->iss_ctrlclk)) { 98959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "Unable to get iss_ctrlclk clock info\n"); 99059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 99159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return PTR_ERR(iss->iss_fck); 99259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 99359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 99459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 99559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 99659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 99759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 99859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_get - Acquire the ISS resource. 99959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 100059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Initializes the clocks for the first acquire. 100159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 100259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Increment the reference count on the ISS. If the first reference is taken, 100359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * enable clocks and power-up all submodules. 100459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 100559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return a pointer to the ISS device structure, or NULL if an error occurred. 100659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 100759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestruct iss_device *omap4iss_get(struct iss_device *iss) 100859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 100959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *__iss = iss; 101059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 101159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss == NULL) 101259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return NULL; 101359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 101459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_lock(&iss->iss_mutex); 101559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->ref_count > 0) 101659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto out; 101759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 101859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss_enable_clocks(iss) < 0) { 101959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __iss = NULL; 102059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto out; 102159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 102259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 102359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_enable_interrupts(iss); 102459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 102559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreout: 102659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (__iss != NULL) 102759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->ref_count++; 102859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_unlock(&iss->iss_mutex); 102959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 103059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return __iss; 103159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 103259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 103359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 103459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * omap4iss_put - Release the ISS 103559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 103659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Decrement the reference count on the ISS. If the last reference is released, 103759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * power-down all submodules, disable clocks and free temporary buffers. 103859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 103959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrevoid omap4iss_put(struct iss_device *iss) 104059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 104159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss == NULL) 104259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return; 104359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 104459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_lock(&iss->iss_mutex); 104559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre BUG_ON(iss->ref_count == 0); 104659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (--iss->ref_count == 0) { 104759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_disable_interrupts(iss); 104859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_disable_clocks(iss); 104959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 105059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_unlock(&iss->iss_mutex); 105159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 105259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 105359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_map_mem_resource(struct platform_device *pdev, 105459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss, 105559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre enum iss_mem_resources res) 105659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 105759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct resource *mem; 105859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 105959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* request the mem region for the camera registers */ 106059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 106159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mem = platform_get_resource(pdev, IORESOURCE_MEM, res); 106259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!mem) { 106359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "no mem resource?\n"); 106459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENODEV; 106559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 106659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 106759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!request_mem_region(mem->start, resource_size(mem), pdev->name)) { 106859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, 106959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre "cannot reserve camera register I/O region\n"); 107059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENODEV; 107159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 107259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->res[res] = mem; 107359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 107459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* map the region */ 107559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->regs[res] = ioremap_nocache(mem->start, resource_size(mem)); 107659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!iss->regs[res]) { 107759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "cannot map camera register I/O region\n"); 107859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENODEV; 107959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 108059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 108159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 108259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 108359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 108459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_unregister_entities(struct iss_device *iss) 108559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 108659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_unregister_entities(&iss->resizer); 108759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipe_unregister_entities(&iss->ipipe); 108859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_unregister_entities(&iss->ipipeif); 108959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_unregister_entities(&iss->csi2a); 109059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_unregister_entities(&iss->csi2b); 109159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 109259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre v4l2_device_unregister(&iss->v4l2_dev); 109359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre media_device_unregister(&iss->media_dev); 109459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 109559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 109659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre/* 109759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * iss_register_subdev_group - Register a group of subdevices 109859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @iss: OMAP4 ISS device 109959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * @board_info: I2C subdevs board information array 110059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 110159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Register all I2C subdevices in the board_info array. The array must be 110259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * terminated by a NULL entry, and the first entry must be the sensor. 110359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * 110459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * Return a pointer to the sensor media entity if it has been successfully 110559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * registered, or NULL otherwise. 110659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 110759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic struct v4l2_subdev * 110859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreiss_register_subdev_group(struct iss_device *iss, 110959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_subdev_i2c_board_info *board_info) 111059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 111159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *sensor = NULL; 111259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int first; 111359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 111459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (board_info->board_info == NULL) 111559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return NULL; 111659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 111759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (first = 1; board_info->board_info; ++board_info, first = 0) { 111859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *subdev; 111959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct i2c_adapter *adapter; 112059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 112159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre adapter = i2c_get_adapter(board_info->i2c_adapter_id); 112259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (adapter == NULL) { 1123499226fb196fef838fa38700b96448a2ec41b704Laurent Pinchart dev_err(iss->dev, 1124499226fb196fef838fa38700b96448a2ec41b704Laurent Pinchart "%s: Unable to get I2C adapter %d for device %s\n", 1125499226fb196fef838fa38700b96448a2ec41b704Laurent Pinchart __func__, board_info->i2c_adapter_id, 112659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre board_info->board_info->type); 112759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre continue; 112859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 112959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 113059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre subdev = v4l2_i2c_new_subdev_board(&iss->v4l2_dev, adapter, 113159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre board_info->board_info, NULL); 113259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (subdev == NULL) { 113359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "%s: Unable to register subdev %s\n", 113459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __func__, board_info->board_info->type); 113559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre continue; 113659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 113759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 113859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (first) 113959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sensor = subdev; 114059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 114159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 114259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return sensor; 114359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 114459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 114559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_register_entities(struct iss_device *iss) 114659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 114759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_platform_data *pdata = iss->pdata; 114859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_v4l2_subdevs_group *subdevs; 114959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 115059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 115159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->media_dev.dev = iss->dev; 115259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre strlcpy(iss->media_dev.model, "TI OMAP4 ISS", 115359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sizeof(iss->media_dev.model)); 115459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->media_dev.hw_revision = iss->revision; 115559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->media_dev.link_notify = iss_pipeline_link_notify; 115659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_device_register(&iss->media_dev); 115759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 11584cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart dev_err(iss->dev, "%s: Media device registration failed (%d)\n", 115959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __func__, ret); 116059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 116159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 116259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 116359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->v4l2_dev.mdev = &iss->media_dev; 116459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_device_register(iss->dev, &iss->v4l2_dev); 116559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 11664cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart dev_err(iss->dev, "%s: V4L2 device registration failed (%d)\n", 116759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre __func__, ret); 116859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 116959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 117059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 117159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Register internal entities */ 117259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csi2_register_entities(&iss->csi2a, &iss->v4l2_dev); 117359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 117459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 117559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 117659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csi2_register_entities(&iss->csi2b, &iss->v4l2_dev); 117759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 117859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 117959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 118059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipeif_register_entities(&iss->ipipeif, &iss->v4l2_dev); 118159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 118259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 118359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 118459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipe_register_entities(&iss->ipipe, &iss->v4l2_dev); 118559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 118659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 118759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 118859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_resizer_register_entities(&iss->resizer, &iss->v4l2_dev); 118959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 119059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 119159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 119259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Register external entities */ 119359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (subdevs = pdata->subdevs; subdevs && subdevs->subdevs; ++subdevs) { 119459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct v4l2_subdev *sensor; 119559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct media_entity *input; 119659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int flags; 119759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre unsigned int pad; 119859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 119959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sensor = iss_register_subdev_group(iss, subdevs->subdevs); 120059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (sensor == NULL) 120159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre continue; 120259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 120359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre sensor->host_priv = subdevs; 120459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 120559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Connect the sensor to the correct interface module. 120659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * CSI2a receiver through CSIPHY1, or 120759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre * CSI2b receiver through CSIPHY2 120859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre */ 120959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre switch (subdevs->interface) { 121059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case ISS_INTERFACE_CSI2A_PHY1: 121159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre input = &iss->csi2a.subdev.entity; 121259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = CSI2_PAD_SINK; 121359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre flags = MEDIA_LNK_FL_IMMUTABLE 121459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre | MEDIA_LNK_FL_ENABLED; 121559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 121659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 121759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre case ISS_INTERFACE_CSI2B_PHY2: 121859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre input = &iss->csi2b.subdev.entity; 121959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre pad = CSI2_PAD_SINK; 122059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre flags = MEDIA_LNK_FL_IMMUTABLE 122159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre | MEDIA_LNK_FL_ENABLED; 122259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre break; 122359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 122459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre default: 12254cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart dev_err(iss->dev, "%s: invalid interface type %u\n", 12264cd89e91bb8dbefe54743df6a5c4437812c96e3aLaurent Pinchart __func__, subdevs->interface); 122759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -EINVAL; 122859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 122959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 123059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 123159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link(&sensor->entity, 0, input, pad, 123259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre flags); 123359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 123459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto done; 123559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 123659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 123759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = v4l2_device_register_subdev_nodes(&iss->v4l2_dev); 123859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 123959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirredone: 124059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 124159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_unregister_entities(iss); 124259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 124359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 124459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 124559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 124659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic void iss_cleanup_modules(struct iss_device *iss) 124759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 124859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_cleanup(iss); 124959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_cleanup(iss); 125059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipe_cleanup(iss); 125159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_cleanup(iss); 125259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 125359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 125459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_initialize_modules(struct iss_device *iss) 125559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 125659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre int ret; 125759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 125859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csiphy_init(iss); 125959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 126059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "CSI PHY initialization failed\n"); 126159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_csiphy; 126259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 126359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 126459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_csi2_init(iss); 126559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 126659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "CSI2 initialization failed\n"); 126759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_csi2; 126859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 126959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 127059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipeif_init(iss); 127159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 127259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "ISP IPIPEIF initialization failed\n"); 127359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_ipipeif; 127459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 127559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 127659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_ipipe_init(iss); 127759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 127859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "ISP IPIPE initialization failed\n"); 127959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_ipipe; 128059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 128159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 128259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_resizer_init(iss); 128359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) { 128459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "ISP RESIZER initialization failed\n"); 128559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_resizer; 128659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 128759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 128859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Connect the submodules. */ 128959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 129059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->csi2a.subdev.entity, CSI2_PAD_SOURCE, 129159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); 129259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 129359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 129459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 129559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 129659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->csi2b.subdev.entity, CSI2_PAD_SOURCE, 129759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); 129859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 129959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 130059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 130159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 130259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, 130359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); 130459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 130559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 130659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 130759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 130859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, 130959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0); 131059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 131159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 131259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 131359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = media_entity_create_link( 131459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->ipipe.subdev.entity, IPIPE_PAD_SOURCE_VP, 131559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); 131659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 131759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_link; 131859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 131959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 132059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 132159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_link: 132259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_resizer_cleanup(iss); 132359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_resizer: 132459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipe_cleanup(iss); 132559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_ipipe: 132659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_ipipeif_cleanup(iss); 132759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_ipipeif: 132859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_csi2_cleanup(iss); 132959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_csi2: 133059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_csiphy: 133159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 133259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 133359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 133459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_probe(struct platform_device *pdev) 133559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 133659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_platform_data *pdata = pdev->dev.platform_data; 133759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss; 13384334fd18e2bcf9c6aa7c535c25b05b462aab05b3Laurent Pinchart unsigned int i; 13394334fd18e2bcf9c6aa7c535c25b05b462aab05b3Laurent Pinchart int ret; 134059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 134159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (pdata == NULL) 134259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -EINVAL; 134359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 134459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss = kzalloc(sizeof(*iss), GFP_KERNEL); 134559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (!iss) { 134659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(&pdev->dev, "Could not allocate memory\n"); 134759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return -ENOMEM; 134859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 134959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 135059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_init(&iss->iss_mutex); 135159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 135259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->dev = &pdev->dev; 135359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->pdata = pdata; 135459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 135559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->raw_dmamask = DMA_BIT_MASK(32); 135659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->dev->dma_mask = &iss->raw_dmamask; 135759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->dev->coherent_dma_mask = DMA_BIT_MASK(32); 135859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 135959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre platform_set_drvdata(pdev, iss); 136059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 136159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Clocks */ 136259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_map_mem_resource(pdev, iss, OMAP4_ISS_MEM_TOP); 136359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 136459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error; 136559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 136659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_get_clocks(iss); 136759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 136859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error; 136959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 137059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (omap4iss_get(iss) == NULL) 137159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error; 137259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 137359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_reset(iss); 137459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 137559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 137659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 137711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss->revision = iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_REVISION); 137859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_info(iss->dev, "Revision %08x found\n", iss->revision); 137959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 138059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 1; i < OMAP4_ISS_MEM_LAST; i++) { 138159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_map_mem_resource(pdev, iss, i); 138259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret) 138359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 138459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 138559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 138659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Configure BTE BW_LIMITER field to max recommended value (1 GB) */ 138711abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_BTE, BTE_CTRL, 138811abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart BTE_CTRL_BW_LIMITER_MASK, 138911abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart 18 << BTE_CTRL_BW_LIMITER_SHIFT); 139059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 139159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Perform ISP reset */ 139259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = omap4iss_subclk_enable(iss, OMAP4_ISS_SUBCLK_ISP); 139359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 139459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 139559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 139659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_isp_reset(iss); 139759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 139859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 139959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 140059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_info(iss->dev, "ISP Revision %08x found\n", 140111abbfd30f74f79fe78d9ff79cc3fcfa86a975c5Laurent Pinchart iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_REVISION)); 140259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 140359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Interrupt */ 140459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->irq_num = platform_get_irq(pdev, 0); 140559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->irq_num <= 0) { 140659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "No IRQ resource\n"); 140759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -ENODEV; 140859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 140959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 141059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 141159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (request_irq(iss->irq_num, iss_isr, IRQF_SHARED, "OMAP4 ISS", iss)) { 141259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre dev_err(iss->dev, "Unable to request IRQ\n"); 141359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = -EINVAL; 141459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_iss; 141559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 141659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 141759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre /* Entities */ 141859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_initialize_modules(iss); 141959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 142059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_irq; 142159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 142259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre ret = iss_register_entities(iss); 142359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (ret < 0) 142459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre goto error_modules; 142559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 142659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_put(iss); 142759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 142859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 142959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 143059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_modules: 143159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_cleanup_modules(iss); 143259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_irq: 143359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre free_irq(iss->irq_num, iss); 143459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror_iss: 143559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre omap4iss_put(iss); 143659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirreerror: 143759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 143859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 143959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 0; i < OMAP4_ISS_MEM_LAST; i++) { 144059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->regs[i]) { 144159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iounmap(iss->regs[i]); 144259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->regs[i] = NULL; 144359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 144459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 144559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->res[i]) { 144659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre release_mem_region(iss->res[i]->start, 144759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre resource_size(iss->res[i])); 144859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->res[i] = NULL; 144959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 145059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 145159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre platform_set_drvdata(pdev, NULL); 145259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 145359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre mutex_destroy(&iss->iss_mutex); 145459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre kfree(iss); 145559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 145659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return ret; 145759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 145859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 145959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic int iss_remove(struct platform_device *pdev) 146059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre{ 146159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre struct iss_device *iss = platform_get_drvdata(pdev); 14624334fd18e2bcf9c6aa7c535c25b05b462aab05b3Laurent Pinchart unsigned int i; 146359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 146459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_unregister_entities(iss); 146559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_cleanup_modules(iss); 146659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 146759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre free_irq(iss->irq_num, iss); 146859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss_put_clocks(iss); 146959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 147059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre for (i = 0; i < OMAP4_ISS_MEM_LAST; i++) { 147159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->regs[i]) { 147259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iounmap(iss->regs[i]); 147359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->regs[i] = NULL; 147459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 147559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 147659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre if (iss->res[i]) { 147759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre release_mem_region(iss->res[i]->start, 147859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre resource_size(iss->res[i])); 147959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre iss->res[i] = NULL; 148059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 148159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre } 148259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 148359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre kfree(iss); 148459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 148559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre return 0; 148659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre} 148759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 148859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic struct platform_device_id omap4iss_id_table[] = { 148959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre { "omap4iss", 0 }, 149059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre { }, 149159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre}; 149259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_DEVICE_TABLE(platform, omap4iss_id_table); 149359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 149459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirrestatic struct platform_driver iss_driver = { 149559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .probe = iss_probe, 149659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .remove = iss_remove, 149759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .id_table = omap4iss_id_table, 149859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .driver = { 149959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .owner = THIS_MODULE, 150059f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre .name = "omap4iss", 150159f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre }, 150259f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre}; 150359f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 150459f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirremodule_platform_driver(iss_driver); 150559f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio Aguirre 150659f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_DESCRIPTION("TI OMAP4 ISS driver"); 150759f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_AUTHOR("Sergio Aguirre <sergio.a.aguirre@gmail.com>"); 150859f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_LICENSE("GPL"); 150959f0ad8076816d13f7cba80d2b178ff5ab787e2eSergio AguirreMODULE_VERSION(ISS_VIDEO_DRIVER_VERSION); 1510