vsp1_drv.c revision 8a1edc55c1ec1ff3624c25b4ac6c1ce776d872b8
126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* 226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * vsp1_drv.c -- R-Car VSP1 Driver 326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 48a1edc55c1ec1ff3624c25b4ac6c1ce776d872b8Laurent Pinchart * Copyright (C) 2013-2014 Renesas Electronics Corporation 526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) 726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * This program is free software; you can redistribute it and/or modify 926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * it under the terms of the GNU General Public License as published by 1026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * the Free Software Foundation; either version 2 of the License, or 1126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * (at your option) any later version. 1226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 1326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 1426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include <linux/clk.h> 1526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include <linux/delay.h> 1626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include <linux/device.h> 1726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include <linux/interrupt.h> 1826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include <linux/module.h> 1926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include <linux/platform_device.h> 2026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include <linux/videodev2.h> 2126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 2226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include "vsp1.h" 235cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart#include "vsp1_hsit.h" 2426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include "vsp1_lif.h" 25989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart#include "vsp1_lut.h" 2626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include "vsp1_rwpf.h" 27a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart#include "vsp1_sru.h" 2826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#include "vsp1_uds.h" 2926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 3026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* ----------------------------------------------------------------------------- 3126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * Interrupt Handling 3226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 3326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 3426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic irqreturn_t vsp1_irq_handler(int irq, void *data) 3526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 3626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart u32 mask = VI6_WFP_IRQ_STA_DFE | VI6_WFP_IRQ_STA_FRE; 3726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_device *vsp1 = data; 3826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart irqreturn_t ret = IRQ_NONE; 3926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart unsigned int i; 4026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 4183453a7cc8b703ce818c24c2298822b0b179e652Katsuya Matsubara for (i = 0; i < vsp1->pdata->wpf_count; ++i) { 4226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_rwpf *wpf = vsp1->wpf[i]; 4326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_pipeline *pipe; 4426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart u32 status; 4526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 4626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (wpf == NULL) 4726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart continue; 4826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 4926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity); 5026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart status = vsp1_read(vsp1, VI6_WPF_IRQ_STA(i)); 5126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_WPF_IRQ_STA(i), ~status & mask); 5226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 5326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (status & VI6_WFP_IRQ_STA_FRE) { 5426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_pipeline_frame_end(pipe); 5526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = IRQ_HANDLED; 5626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 5726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 5826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 5926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return ret; 6026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 6126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 6226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* ----------------------------------------------------------------------------- 6326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * Entities 6426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 6526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 6626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* 6726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * vsp1_create_links - Create links from all sources to the given sink 6826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 6926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * This function creates media links from all valid sources to the given sink 7026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * pad. Links that would be invalid according to the VSP1 hardware capabilities 7126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * are skipped. Those include all links 7226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 7326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * - from a UDS to a UDS (UDS entities can't be chained) 7426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * - from an entity to itself (no loops are allowed) 7526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 7626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic int vsp1_create_links(struct vsp1_device *vsp1, struct vsp1_entity *sink) 7726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 7826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct media_entity *entity = &sink->subdev.entity; 7926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_entity *source; 8026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart unsigned int pad; 8126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart int ret; 8226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 8326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_for_each_entry(source, &vsp1->entities, list_dev) { 8426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart u32 flags; 8526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 8626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (source->type == sink->type) 8726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart continue; 8826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 8926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (source->type == VSP1_ENTITY_LIF || 9026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart source->type == VSP1_ENTITY_WPF) 9126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart continue; 9226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 9326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart flags = source->type == VSP1_ENTITY_RPF && 9426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart sink->type == VSP1_ENTITY_WPF && 9526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart source->index == sink->index 9626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ? MEDIA_LNK_FL_ENABLED : 0; 9726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 9826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart for (pad = 0; pad < entity->num_pads; ++pad) { 9926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (!(entity->pads[pad].flags & MEDIA_PAD_FL_SINK)) 10026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart continue; 10126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 10226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = media_entity_create_link(&source->subdev.entity, 10326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart source->source_pad, 10426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart entity, pad, flags); 10526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) 10626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return ret; 107db32eb6c18d7617e61ca65eb13b66de4dea56f1fKatsuya Matsubara 108db32eb6c18d7617e61ca65eb13b66de4dea56f1fKatsuya Matsubara if (flags & MEDIA_LNK_FL_ENABLED) 109db32eb6c18d7617e61ca65eb13b66de4dea56f1fKatsuya Matsubara source->sink = entity; 11026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 11126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 11226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 11326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return 0; 11426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 11526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 11626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic void vsp1_destroy_entities(struct vsp1_device *vsp1) 11726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 11826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_entity *entity; 11926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_entity *next; 12026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 12126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_for_each_entry_safe(entity, next, &vsp1->entities, list_dev) { 12226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_del(&entity->list_dev); 12326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_entity_destroy(entity); 12426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 12526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 12626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart v4l2_device_unregister(&vsp1->v4l2_dev); 12726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart media_device_unregister(&vsp1->media_dev); 12826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 12926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 13026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic int vsp1_create_entities(struct vsp1_device *vsp1) 13126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 13226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct media_device *mdev = &vsp1->media_dev; 13326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct v4l2_device *vdev = &vsp1->v4l2_dev; 13426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_entity *entity; 13526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart unsigned int i; 13626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart int ret; 13726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 13826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart mdev->dev = vsp1->dev; 13926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart strlcpy(mdev->model, "VSP1", sizeof(mdev->model)); 14010d79b995be5399be0a59a72859ac4bfdf066299Laurent Pinchart snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s", 14110d79b995be5399be0a59a72859ac4bfdf066299Laurent Pinchart dev_name(mdev->dev)); 14226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = media_device_register(mdev); 14326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) { 14426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(vsp1->dev, "media device registration failed (%d)\n", 14526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret); 14626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return ret; 14726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 14826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 14926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vdev->mdev = mdev; 15026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = v4l2_device_register(vsp1->dev, vdev); 15126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) { 15226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(vsp1->dev, "V4L2 device registration failed (%d)\n", 15326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret); 15426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 15526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 15626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 15726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart /* Instantiate all the entities. */ 1585cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart vsp1->hsi = vsp1_hsit_create(vsp1, true); 1595cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart if (IS_ERR(vsp1->hsi)) { 1605cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart ret = PTR_ERR(vsp1->hsi); 1615cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart goto done; 1625cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart } 1635cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart 1645cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart list_add_tail(&vsp1->hsi->entity.list_dev, &vsp1->entities); 1655cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart 1665cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart vsp1->hst = vsp1_hsit_create(vsp1, false); 1675cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart if (IS_ERR(vsp1->hst)) { 1685cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart ret = PTR_ERR(vsp1->hst); 1695cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart goto done; 1705cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart } 1715cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart 1725cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart list_add_tail(&vsp1->hst->entity.list_dev, &vsp1->entities); 1735cdf5741d6529f3c04dcd117b4c9b9039d101602Laurent Pinchart 17426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (vsp1->pdata->features & VSP1_HAS_LIF) { 17526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->lif = vsp1_lif_create(vsp1); 17626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (IS_ERR(vsp1->lif)) { 17726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = PTR_ERR(vsp1->lif); 17826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 17926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 18026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 18126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_add_tail(&vsp1->lif->entity.list_dev, &vsp1->entities); 18226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 18326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 184989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart if (vsp1->pdata->features & VSP1_HAS_LUT) { 185989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart vsp1->lut = vsp1_lut_create(vsp1); 186989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart if (IS_ERR(vsp1->lut)) { 187989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart ret = PTR_ERR(vsp1->lut); 188989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart goto done; 189989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart } 190989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart 191989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart list_add_tail(&vsp1->lut->entity.list_dev, &vsp1->entities); 192989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart } 193989af88339db26345e23271dae1089d949c4a0f1Laurent Pinchart 19426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart for (i = 0; i < vsp1->pdata->rpf_count; ++i) { 19526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_rwpf *rpf; 19626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 19726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart rpf = vsp1_rpf_create(vsp1, i); 19826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (IS_ERR(rpf)) { 19926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = PTR_ERR(rpf); 20026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 20126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 20226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 20326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->rpf[i] = rpf; 20426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_add_tail(&rpf->entity.list_dev, &vsp1->entities); 20526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 20626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 207a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart if (vsp1->pdata->features & VSP1_HAS_SRU) { 208a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart vsp1->sru = vsp1_sru_create(vsp1); 209a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart if (IS_ERR(vsp1->sru)) { 210a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart ret = PTR_ERR(vsp1->sru); 211a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart goto done; 212a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart } 213a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart 214a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart list_add_tail(&vsp1->sru->entity.list_dev, &vsp1->entities); 215a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart } 216a626e64e0bee4fb26848dbed92223dde488f3d93Laurent Pinchart 21726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart for (i = 0; i < vsp1->pdata->uds_count; ++i) { 21826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_uds *uds; 21926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 22026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart uds = vsp1_uds_create(vsp1, i); 22126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (IS_ERR(uds)) { 22226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = PTR_ERR(uds); 22326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 22426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 22526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 22626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->uds[i] = uds; 22726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_add_tail(&uds->entity.list_dev, &vsp1->entities); 22826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 22926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 23026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart for (i = 0; i < vsp1->pdata->wpf_count; ++i) { 23126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_rwpf *wpf; 23226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 23326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart wpf = vsp1_wpf_create(vsp1, i); 23426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (IS_ERR(wpf)) { 23526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = PTR_ERR(wpf); 23626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 23726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 23826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 23926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->wpf[i] = wpf; 24026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_add_tail(&wpf->entity.list_dev, &vsp1->entities); 24126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 24226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 24326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart /* Create links. */ 24426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_for_each_entry(entity, &vsp1->entities, list_dev) { 24526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (entity->type == VSP1_ENTITY_LIF || 24626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart entity->type == VSP1_ENTITY_RPF) 24726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart continue; 24826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 24926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = vsp1_create_links(vsp1, entity); 25026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) 25126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 25226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 25326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 25426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (vsp1->pdata->features & VSP1_HAS_LIF) { 25526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = media_entity_create_link( 25626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart &vsp1->wpf[0]->entity.subdev.entity, RWPF_PAD_SOURCE, 25726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart &vsp1->lif->entity.subdev.entity, LIF_PAD_SINK, 0); 25826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) 25926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return ret; 26026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 26126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 26226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart /* Register all subdevs. */ 26326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart list_for_each_entry(entity, &vsp1->entities, list_dev) { 26426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = v4l2_device_register_subdev(&vsp1->v4l2_dev, 26526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart &entity->subdev); 26626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) 26726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 26826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 26926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 27026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev); 27126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 27226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartdone: 27326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) 27426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_destroy_entities(vsp1); 27526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 27626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return ret; 27726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 27826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 27926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic int vsp1_device_init(struct vsp1_device *vsp1) 28026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 28126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart unsigned int i; 28226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart u32 status; 28326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 28426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart /* Reset any channel that might be running. */ 28526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart status = vsp1_read(vsp1, VI6_STATUS); 28626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 28783453a7cc8b703ce818c24c2298822b0b179e652Katsuya Matsubara for (i = 0; i < vsp1->pdata->wpf_count; ++i) { 28826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart unsigned int timeout; 28926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 29026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (!(status & VI6_STATUS_SYS_ACT(i))) 29126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart continue; 29226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 29326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_SRESET, VI6_SRESET_SRTS(i)); 29426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart for (timeout = 10; timeout > 0; --timeout) { 29526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart status = vsp1_read(vsp1, VI6_STATUS); 29626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (!(status & VI6_STATUS_SYS_ACT(i))) 29726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart break; 29826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 29926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart usleep_range(1000, 2000); 30026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 30126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 30226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (!timeout) { 30326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(vsp1->dev, "failed to reset wpf.%u\n", i); 30426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return -ETIMEDOUT; 30526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 30626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 30726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 30826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_CLK_DCSWT, (8 << VI6_CLK_DCSWT_CSTPW_SHIFT) | 30926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart (8 << VI6_CLK_DCSWT_CSTRW_SHIFT)); 31026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 31183453a7cc8b703ce818c24c2298822b0b179e652Katsuya Matsubara for (i = 0; i < vsp1->pdata->rpf_count; ++i) 31226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_RPF_ROUTE(i), VI6_DPR_NODE_UNUSED); 31326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 31483453a7cc8b703ce818c24c2298822b0b179e652Katsuya Matsubara for (i = 0; i < vsp1->pdata->uds_count; ++i) 31526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_UDS_ROUTE(i), VI6_DPR_NODE_UNUSED); 31626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 31726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_SRU_ROUTE, VI6_DPR_NODE_UNUSED); 31826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_LUT_ROUTE, VI6_DPR_NODE_UNUSED); 31926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_CLU_ROUTE, VI6_DPR_NODE_UNUSED); 32026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_HST_ROUTE, VI6_DPR_NODE_UNUSED); 32126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_HSI_ROUTE, VI6_DPR_NODE_UNUSED); 32226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_BRU_ROUTE, VI6_DPR_NODE_UNUSED); 32326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 32426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_HGO_SMPPT, (7 << VI6_DPR_SMPPT_TGW_SHIFT) | 32526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart (VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT)); 32626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_write(vsp1, VI6_DPR_HGT_SMPPT, (7 << VI6_DPR_SMPPT_TGW_SHIFT) | 32726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart (VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT)); 32826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 32926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return 0; 33026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 33126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 332f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchartstatic int vsp1_clocks_enable(struct vsp1_device *vsp1) 333f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart{ 334f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart int ret; 335f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart 336f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart ret = clk_prepare_enable(vsp1->clock); 337f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart if (ret < 0) 338f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart return ret; 339f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart 340f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart if (IS_ERR(vsp1->rt_clock)) 341f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart return 0; 342f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart 343f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart ret = clk_prepare_enable(vsp1->rt_clock); 344f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart if (ret < 0) { 345f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart clk_disable_unprepare(vsp1->clock); 346f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart return ret; 347f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart } 348f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart 349f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart return 0; 350f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart} 351f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart 352f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchartstatic void vsp1_clocks_disable(struct vsp1_device *vsp1) 353f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart{ 354f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart if (!IS_ERR(vsp1->rt_clock)) 355f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart clk_disable_unprepare(vsp1->rt_clock); 356f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart clk_disable_unprepare(vsp1->clock); 357f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart} 358f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart 35926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* 36026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * vsp1_device_get - Acquire the VSP1 device 36126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 36226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * Increment the VSP1 reference count and initialize the device if the first 36326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * reference is taken. 36426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 36539c1cb2b191f56a963103d715797fca70f2fb26eJonathan McCrohan * Return a pointer to the VSP1 device or NULL if an error occurred. 36626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 36726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstruct vsp1_device *vsp1_device_get(struct vsp1_device *vsp1) 36826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 36926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_device *__vsp1 = vsp1; 37026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart int ret; 37126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 37226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart mutex_lock(&vsp1->lock); 37326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (vsp1->ref_count > 0) 37426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 37526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 376f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart ret = vsp1_clocks_enable(vsp1); 37726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) { 37826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart __vsp1 = NULL; 37926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 38026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 38126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 38226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = vsp1_device_init(vsp1); 38326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) { 384f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart vsp1_clocks_disable(vsp1); 38526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart __vsp1 = NULL; 38626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart goto done; 38726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 38826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 38926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartdone: 39026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (__vsp1) 39126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->ref_count++; 39226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 39326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart mutex_unlock(&vsp1->lock); 39426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return __vsp1; 39526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 39626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 39726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* 39826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * vsp1_device_put - Release the VSP1 device 39926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * 40026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * Decrement the VSP1 reference count and cleanup the device if the last 40126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * reference is released. 40226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 40326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartvoid vsp1_device_put(struct vsp1_device *vsp1) 40426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 40526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart mutex_lock(&vsp1->lock); 40626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 40726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (--vsp1->ref_count == 0) 408f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart vsp1_clocks_disable(vsp1); 40926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 41026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart mutex_unlock(&vsp1->lock); 41126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 41226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 41326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* ----------------------------------------------------------------------------- 41426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * Power Management 41526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 41626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 41726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#ifdef CONFIG_PM_SLEEP 41826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic int vsp1_pm_suspend(struct device *dev) 41926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 42026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_device *vsp1 = dev_get_drvdata(dev); 42126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 42226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart WARN_ON(mutex_is_locked(&vsp1->lock)); 42326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 42426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (vsp1->ref_count == 0) 42526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return 0; 42626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 427f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart vsp1_clocks_disable(vsp1); 42826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return 0; 42926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 43026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 43126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic int vsp1_pm_resume(struct device *dev) 43226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 43326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_device *vsp1 = dev_get_drvdata(dev); 43426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 43526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart WARN_ON(mutex_is_locked(&vsp1->lock)); 43626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 43726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (vsp1->ref_count) 43826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return 0; 43926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 440f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart return vsp1_clocks_enable(vsp1); 44126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 44226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart#endif 44326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 44426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic const struct dev_pm_ops vsp1_pm_ops = { 44526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart SET_SYSTEM_SLEEP_PM_OPS(vsp1_pm_suspend, vsp1_pm_resume) 44626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart}; 44726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 44826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart/* ----------------------------------------------------------------------------- 44926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart * Platform Driver 45026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart */ 45126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 45226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic struct vsp1_platform_data * 45326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartvsp1_get_platform_data(struct platform_device *pdev) 45426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 45526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_platform_data *pdata = pdev->dev.platform_data; 45626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 45726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (pdata == NULL) { 45826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "missing platform data\n"); 45926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return NULL; 46026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 46126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 46226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (pdata->rpf_count <= 0 || pdata->rpf_count > VPS1_MAX_RPF) { 46326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "invalid number of RPF (%u)\n", 46426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart pdata->rpf_count); 46526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return NULL; 46626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 46726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 46826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (pdata->uds_count <= 0 || pdata->uds_count > VPS1_MAX_UDS) { 46926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "invalid number of UDS (%u)\n", 47026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart pdata->uds_count); 47126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return NULL; 47226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 47326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 47426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (pdata->wpf_count <= 0 || pdata->wpf_count > VPS1_MAX_WPF) { 47526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "invalid number of WPF (%u)\n", 47626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart pdata->wpf_count); 47726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return NULL; 47826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 47926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 48026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return pdata; 48126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 48226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 48326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic int vsp1_probe(struct platform_device *pdev) 48426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 48526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_device *vsp1; 48626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct resource *irq; 48726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct resource *io; 48826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart int ret; 48926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 49026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1 = devm_kzalloc(&pdev->dev, sizeof(*vsp1), GFP_KERNEL); 49126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (vsp1 == NULL) 49226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return -ENOMEM; 49326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 49426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->dev = &pdev->dev; 49526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart mutex_init(&vsp1->lock); 49626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart INIT_LIST_HEAD(&vsp1->entities); 49726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 49826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->pdata = vsp1_get_platform_data(pdev); 49926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (vsp1->pdata == NULL) 50026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return -ENODEV; 50126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 50226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart /* I/O, IRQ and clock resources */ 50326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart io = platform_get_resource(pdev, IORESOURCE_MEM, 0); 50426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->mmio = devm_ioremap_resource(&pdev->dev, io); 505cbec6d3ab470565536480d3bd109a7fdb128c3c4Mauro Carvalho Chehab if (IS_ERR(vsp1->mmio)) 506cbec6d3ab470565536480d3bd109a7fdb128c3c4Mauro Carvalho Chehab return PTR_ERR(vsp1->mmio); 50726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 50826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1->clock = devm_clk_get(&pdev->dev, NULL); 50926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (IS_ERR(vsp1->clock)) { 51026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "failed to get clock\n"); 51126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return PTR_ERR(vsp1->clock); 51226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 51326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 514f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart /* The RT clock is optional */ 515f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart vsp1->rt_clock = devm_clk_get(&pdev->dev, "rt"); 516f2226a33bf9a431f616b435aa10a9ad4fea1d042Laurent Pinchart 51726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); 51826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (!irq) { 51926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "missing IRQ\n"); 52026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return -EINVAL; 52126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 52226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 52326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = devm_request_irq(&pdev->dev, irq->start, vsp1_irq_handler, 52426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart IRQF_SHARED, dev_name(&pdev->dev), vsp1); 52526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) { 52626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "failed to request IRQ\n"); 52726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return ret; 52826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 52926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 53026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart /* Instanciate entities */ 53126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart ret = vsp1_create_entities(vsp1); 53226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart if (ret < 0) { 53326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart dev_err(&pdev->dev, "failed to create entities\n"); 53426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return ret; 53526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart } 53626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 53726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart platform_set_drvdata(pdev, vsp1); 53826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 53926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return 0; 54026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 54126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 54226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic int vsp1_remove(struct platform_device *pdev) 54326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart{ 54426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart struct vsp1_device *vsp1 = platform_get_drvdata(pdev); 54526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 54626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart vsp1_destroy_entities(vsp1); 54726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 54826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart return 0; 54926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart} 55026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 55126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartstatic struct platform_driver vsp1_platform_driver = { 55226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart .probe = vsp1_probe, 55326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart .remove = vsp1_remove, 55426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart .driver = { 55526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart .owner = THIS_MODULE, 55626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart .name = "vsp1", 55726e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart .pm = &vsp1_pm_ops, 55826e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart }, 55926e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart}; 56026e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 56126e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchartmodule_platform_driver(vsp1_platform_driver); 56226e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent Pinchart 56326e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent PinchartMODULE_ALIAS("vsp1"); 56426e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent PinchartMODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>"); 56526e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent PinchartMODULE_DESCRIPTION("Renesas VSP1 Driver"); 56626e0ca22c3b85b04f693dd0422f13a61846ccfa9Laurent PinchartMODULE_LICENSE("GPL"); 567