| /* |
| * vsp1_drv.c -- R-Car VSP1 Driver |
| * |
| * Copyright (C) 2013-2015 Renesas Electronics Corporation |
| * |
| * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #include <linux/clk.h> |
| #include <linux/delay.h> |
| #include <linux/device.h> |
| #include <linux/interrupt.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/platform_device.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/videodev2.h> |
| |
| #include <media/rcar-fcp.h> |
| #include <media/v4l2-subdev.h> |
| |
| #include "vsp1.h" |
| #include "vsp1_bru.h" |
| #include "vsp1_clu.h" |
| #include "vsp1_dl.h" |
| #include "vsp1_drm.h" |
| #include "vsp1_hsit.h" |
| #include "vsp1_lif.h" |
| #include "vsp1_lut.h" |
| #include "vsp1_pipe.h" |
| #include "vsp1_rwpf.h" |
| #include "vsp1_sru.h" |
| #include "vsp1_uds.h" |
| #include "vsp1_video.h" |
| |
| /* ----------------------------------------------------------------------------- |
| * Interrupt Handling |
| */ |
| |
| static irqreturn_t vsp1_irq_handler(int irq, void *data) |
| { |
| u32 mask = VI6_WFP_IRQ_STA_DFE | VI6_WFP_IRQ_STA_FRE; |
| struct vsp1_device *vsp1 = data; |
| irqreturn_t ret = IRQ_NONE; |
| unsigned int i; |
| u32 status; |
| |
| for (i = 0; i < vsp1->info->wpf_count; ++i) { |
| struct vsp1_rwpf *wpf = vsp1->wpf[i]; |
| |
| if (wpf == NULL) |
| continue; |
| |
| status = vsp1_read(vsp1, VI6_WPF_IRQ_STA(i)); |
| vsp1_write(vsp1, VI6_WPF_IRQ_STA(i), ~status & mask); |
| |
| if (status & VI6_WFP_IRQ_STA_DFE) { |
| vsp1_pipeline_frame_end(wpf->pipe); |
| ret = IRQ_HANDLED; |
| } |
| } |
| |
| status = vsp1_read(vsp1, VI6_DISP_IRQ_STA); |
| vsp1_write(vsp1, VI6_DISP_IRQ_STA, ~status & VI6_DISP_IRQ_STA_DST); |
| |
| if (status & VI6_DISP_IRQ_STA_DST) { |
| vsp1_drm_display_start(vsp1); |
| ret = IRQ_HANDLED; |
| } |
| |
| return ret; |
| } |
| |
| /* ----------------------------------------------------------------------------- |
| * Entities |
| */ |
| |
| /* |
| * vsp1_create_sink_links - Create links from all sources to the given sink |
| * |
| * This function creates media links from all valid sources to the given sink |
| * pad. Links that would be invalid according to the VSP1 hardware capabilities |
| * are skipped. Those include all links |
| * |
| * - from a UDS to a UDS (UDS entities can't be chained) |
| * - from an entity to itself (no loops are allowed) |
| */ |
| static int vsp1_create_sink_links(struct vsp1_device *vsp1, |
| struct vsp1_entity *sink) |
| { |
| struct media_entity *entity = &sink->subdev.entity; |
| struct vsp1_entity *source; |
| unsigned int pad; |
| int ret; |
| |
| list_for_each_entry(source, &vsp1->entities, list_dev) { |
| u32 flags; |
| |
| if (source->type == sink->type) |
| continue; |
| |
| if (source->type == VSP1_ENTITY_LIF || |
| source->type == VSP1_ENTITY_WPF) |
| continue; |
| |
| flags = source->type == VSP1_ENTITY_RPF && |
| sink->type == VSP1_ENTITY_WPF && |
| source->index == sink->index |
| ? MEDIA_LNK_FL_ENABLED : 0; |
| |
| for (pad = 0; pad < entity->num_pads; ++pad) { |
| if (!(entity->pads[pad].flags & MEDIA_PAD_FL_SINK)) |
| continue; |
| |
| ret = media_create_pad_link(&source->subdev.entity, |
| source->source_pad, |
| entity, pad, flags); |
| if (ret < 0) |
| return ret; |
| |
| if (flags & MEDIA_LNK_FL_ENABLED) |
| source->sink = entity; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int vsp1_uapi_create_links(struct vsp1_device *vsp1) |
| { |
| struct vsp1_entity *entity; |
| unsigned int i; |
| int ret; |
| |
| list_for_each_entry(entity, &vsp1->entities, list_dev) { |
| if (entity->type == VSP1_ENTITY_LIF || |
| entity->type == VSP1_ENTITY_RPF) |
| continue; |
| |
| ret = vsp1_create_sink_links(vsp1, entity); |
| if (ret < 0) |
| return ret; |
| } |
| |
| if (vsp1->lif) { |
| ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity, |
| RWPF_PAD_SOURCE, |
| &vsp1->lif->entity.subdev.entity, |
| LIF_PAD_SINK, 0); |
| if (ret < 0) |
| return ret; |
| } |
| |
| for (i = 0; i < vsp1->info->rpf_count; ++i) { |
| struct vsp1_rwpf *rpf = vsp1->rpf[i]; |
| |
| ret = media_create_pad_link(&rpf->video->video.entity, 0, |
| &rpf->entity.subdev.entity, |
| RWPF_PAD_SINK, |
| MEDIA_LNK_FL_ENABLED | |
| MEDIA_LNK_FL_IMMUTABLE); |
| if (ret < 0) |
| return ret; |
| } |
| |
| for (i = 0; i < vsp1->info->wpf_count; ++i) { |
| /* Connect the video device to the WPF. All connections are |
| * immutable. |
| */ |
| struct vsp1_rwpf *wpf = vsp1->wpf[i]; |
| |
| ret = media_create_pad_link(&wpf->entity.subdev.entity, |
| RWPF_PAD_SOURCE, |
| &wpf->video->video.entity, 0, |
| MEDIA_LNK_FL_IMMUTABLE | |
| MEDIA_LNK_FL_ENABLED); |
| if (ret < 0) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static void vsp1_destroy_entities(struct vsp1_device *vsp1) |
| { |
| struct vsp1_entity *entity, *_entity; |
| struct vsp1_video *video, *_video; |
| |
| list_for_each_entry_safe(entity, _entity, &vsp1->entities, list_dev) { |
| list_del(&entity->list_dev); |
| vsp1_entity_destroy(entity); |
| } |
| |
| list_for_each_entry_safe(video, _video, &vsp1->videos, list) { |
| list_del(&video->list); |
| vsp1_video_cleanup(video); |
| } |
| |
| v4l2_device_unregister(&vsp1->v4l2_dev); |
| if (vsp1->info->uapi) |
| media_device_unregister(&vsp1->media_dev); |
| media_device_cleanup(&vsp1->media_dev); |
| |
| if (!vsp1->info->uapi) |
| vsp1_drm_cleanup(vsp1); |
| } |
| |
| static int vsp1_create_entities(struct vsp1_device *vsp1) |
| { |
| struct media_device *mdev = &vsp1->media_dev; |
| struct v4l2_device *vdev = &vsp1->v4l2_dev; |
| struct vsp1_entity *entity; |
| unsigned int i; |
| int ret; |
| |
| mdev->dev = vsp1->dev; |
| mdev->hw_revision = vsp1->version; |
| strlcpy(mdev->model, vsp1->info->model, sizeof(mdev->model)); |
| snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s", |
| dev_name(mdev->dev)); |
| media_device_init(mdev); |
| |
| vsp1->media_ops.link_setup = vsp1_entity_link_setup; |
| /* Don't perform link validation when the userspace API is disabled as |
| * the pipeline is configured internally by the driver in that case, and |
| * its configuration can thus be trusted. |
| */ |
| if (vsp1->info->uapi) |
| vsp1->media_ops.link_validate = v4l2_subdev_link_validate; |
| |
| vdev->mdev = mdev; |
| ret = v4l2_device_register(vsp1->dev, vdev); |
| if (ret < 0) { |
| dev_err(vsp1->dev, "V4L2 device registration failed (%d)\n", |
| ret); |
| goto done; |
| } |
| |
| /* Instantiate all the entities. */ |
| if (vsp1->info->features & VSP1_HAS_BRU) { |
| vsp1->bru = vsp1_bru_create(vsp1); |
| if (IS_ERR(vsp1->bru)) { |
| ret = PTR_ERR(vsp1->bru); |
| goto done; |
| } |
| |
| list_add_tail(&vsp1->bru->entity.list_dev, &vsp1->entities); |
| } |
| |
| if (vsp1->info->features & VSP1_HAS_CLU) { |
| vsp1->clu = vsp1_clu_create(vsp1); |
| if (IS_ERR(vsp1->clu)) { |
| ret = PTR_ERR(vsp1->clu); |
| goto done; |
| } |
| |
| list_add_tail(&vsp1->clu->entity.list_dev, &vsp1->entities); |
| } |
| |
| vsp1->hsi = vsp1_hsit_create(vsp1, true); |
| if (IS_ERR(vsp1->hsi)) { |
| ret = PTR_ERR(vsp1->hsi); |
| goto done; |
| } |
| |
| list_add_tail(&vsp1->hsi->entity.list_dev, &vsp1->entities); |
| |
| vsp1->hst = vsp1_hsit_create(vsp1, false); |
| if (IS_ERR(vsp1->hst)) { |
| ret = PTR_ERR(vsp1->hst); |
| goto done; |
| } |
| |
| list_add_tail(&vsp1->hst->entity.list_dev, &vsp1->entities); |
| |
| /* The LIF is only supported when used in conjunction with the DU, in |
| * which case the userspace API is disabled. If the userspace API is |
| * enabled skip the LIF, even when present. |
| */ |
| if (vsp1->info->features & VSP1_HAS_LIF && !vsp1->info->uapi) { |
| vsp1->lif = vsp1_lif_create(vsp1); |
| if (IS_ERR(vsp1->lif)) { |
| ret = PTR_ERR(vsp1->lif); |
| goto done; |
| } |
| |
| list_add_tail(&vsp1->lif->entity.list_dev, &vsp1->entities); |
| } |
| |
| if (vsp1->info->features & VSP1_HAS_LUT) { |
| vsp1->lut = vsp1_lut_create(vsp1); |
| if (IS_ERR(vsp1->lut)) { |
| ret = PTR_ERR(vsp1->lut); |
| goto done; |
| } |
| |
| list_add_tail(&vsp1->lut->entity.list_dev, &vsp1->entities); |
| } |
| |
| for (i = 0; i < vsp1->info->rpf_count; ++i) { |
| struct vsp1_rwpf *rpf; |
| |
| rpf = vsp1_rpf_create(vsp1, i); |
| if (IS_ERR(rpf)) { |
| ret = PTR_ERR(rpf); |
| goto done; |
| } |
| |
| vsp1->rpf[i] = rpf; |
| list_add_tail(&rpf->entity.list_dev, &vsp1->entities); |
| |
| if (vsp1->info->uapi) { |
| struct vsp1_video *video = vsp1_video_create(vsp1, rpf); |
| |
| if (IS_ERR(video)) { |
| ret = PTR_ERR(video); |
| goto done; |
| } |
| |
| list_add_tail(&video->list, &vsp1->videos); |
| } |
| } |
| |
| if (vsp1->info->features & VSP1_HAS_SRU) { |
| vsp1->sru = vsp1_sru_create(vsp1); |
| if (IS_ERR(vsp1->sru)) { |
| ret = PTR_ERR(vsp1->sru); |
| goto done; |
| } |
| |
| list_add_tail(&vsp1->sru->entity.list_dev, &vsp1->entities); |
| } |
| |
| for (i = 0; i < vsp1->info->uds_count; ++i) { |
| struct vsp1_uds *uds; |
| |
| uds = vsp1_uds_create(vsp1, i); |
| if (IS_ERR(uds)) { |
| ret = PTR_ERR(uds); |
| goto done; |
| } |
| |
| vsp1->uds[i] = uds; |
| list_add_tail(&uds->entity.list_dev, &vsp1->entities); |
| } |
| |
| for (i = 0; i < vsp1->info->wpf_count; ++i) { |
| struct vsp1_rwpf *wpf; |
| |
| wpf = vsp1_wpf_create(vsp1, i); |
| if (IS_ERR(wpf)) { |
| ret = PTR_ERR(wpf); |
| goto done; |
| } |
| |
| vsp1->wpf[i] = wpf; |
| list_add_tail(&wpf->entity.list_dev, &vsp1->entities); |
| |
| if (vsp1->info->uapi) { |
| struct vsp1_video *video = vsp1_video_create(vsp1, wpf); |
| |
| if (IS_ERR(video)) { |
| ret = PTR_ERR(video); |
| goto done; |
| } |
| |
| list_add_tail(&video->list, &vsp1->videos); |
| wpf->entity.sink = &video->video.entity; |
| } |
| } |
| |
| /* Register all subdevs. */ |
| list_for_each_entry(entity, &vsp1->entities, list_dev) { |
| ret = v4l2_device_register_subdev(&vsp1->v4l2_dev, |
| &entity->subdev); |
| if (ret < 0) |
| goto done; |
| } |
| |
| /* Create links. */ |
| if (vsp1->info->uapi) |
| ret = vsp1_uapi_create_links(vsp1); |
| else |
| ret = vsp1_drm_create_links(vsp1); |
| if (ret < 0) |
| goto done; |
| |
| /* Register subdev nodes if the userspace API is enabled or initialize |
| * the DRM pipeline otherwise. |
| */ |
| if (vsp1->info->uapi) { |
| ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev); |
| if (ret < 0) |
| goto done; |
| |
| ret = media_device_register(mdev); |
| } else { |
| ret = vsp1_drm_init(vsp1); |
| } |
| |
| done: |
| if (ret < 0) |
| vsp1_destroy_entities(vsp1); |
| |
| return ret; |
| } |
| |
| int vsp1_reset_wpf(struct vsp1_device *vsp1, unsigned int index) |
| { |
| unsigned int timeout; |
| u32 status; |
| |
| status = vsp1_read(vsp1, VI6_STATUS); |
| if (!(status & VI6_STATUS_SYS_ACT(index))) |
| return 0; |
| |
| vsp1_write(vsp1, VI6_SRESET, VI6_SRESET_SRTS(index)); |
| for (timeout = 10; timeout > 0; --timeout) { |
| status = vsp1_read(vsp1, VI6_STATUS); |
| if (!(status & VI6_STATUS_SYS_ACT(index))) |
| break; |
| |
| usleep_range(1000, 2000); |
| } |
| |
| if (!timeout) { |
| dev_err(vsp1->dev, "failed to reset wpf.%u\n", index); |
| return -ETIMEDOUT; |
| } |
| |
| return 0; |
| } |
| |
| static int vsp1_device_init(struct vsp1_device *vsp1) |
| { |
| unsigned int i; |
| int ret; |
| |
| /* Reset any channel that might be running. */ |
| for (i = 0; i < vsp1->info->wpf_count; ++i) { |
| ret = vsp1_reset_wpf(vsp1, i); |
| if (ret < 0) |
| return ret; |
| } |
| |
| vsp1_write(vsp1, VI6_CLK_DCSWT, (8 << VI6_CLK_DCSWT_CSTPW_SHIFT) | |
| (8 << VI6_CLK_DCSWT_CSTRW_SHIFT)); |
| |
| for (i = 0; i < vsp1->info->rpf_count; ++i) |
| vsp1_write(vsp1, VI6_DPR_RPF_ROUTE(i), VI6_DPR_NODE_UNUSED); |
| |
| for (i = 0; i < vsp1->info->uds_count; ++i) |
| vsp1_write(vsp1, VI6_DPR_UDS_ROUTE(i), VI6_DPR_NODE_UNUSED); |
| |
| vsp1_write(vsp1, VI6_DPR_SRU_ROUTE, VI6_DPR_NODE_UNUSED); |
| vsp1_write(vsp1, VI6_DPR_LUT_ROUTE, VI6_DPR_NODE_UNUSED); |
| vsp1_write(vsp1, VI6_DPR_CLU_ROUTE, VI6_DPR_NODE_UNUSED); |
| vsp1_write(vsp1, VI6_DPR_HST_ROUTE, VI6_DPR_NODE_UNUSED); |
| vsp1_write(vsp1, VI6_DPR_HSI_ROUTE, VI6_DPR_NODE_UNUSED); |
| vsp1_write(vsp1, VI6_DPR_BRU_ROUTE, VI6_DPR_NODE_UNUSED); |
| |
| vsp1_write(vsp1, VI6_DPR_HGO_SMPPT, (7 << VI6_DPR_SMPPT_TGW_SHIFT) | |
| (VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT)); |
| vsp1_write(vsp1, VI6_DPR_HGT_SMPPT, (7 << VI6_DPR_SMPPT_TGW_SHIFT) | |
| (VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT)); |
| |
| vsp1_dlm_setup(vsp1); |
| |
| return 0; |
| } |
| |
| /* |
| * vsp1_device_get - Acquire the VSP1 device |
| * |
| * Make sure the device is not suspended and initialize it if needed. |
| * |
| * Return 0 on success or a negative error code otherwise. |
| */ |
| int vsp1_device_get(struct vsp1_device *vsp1) |
| { |
| int ret; |
| |
| ret = pm_runtime_get_sync(vsp1->dev); |
| return ret < 0 ? ret : 0; |
| } |
| |
| /* |
| * vsp1_device_put - Release the VSP1 device |
| * |
| * Decrement the VSP1 reference count and cleanup the device if the last |
| * reference is released. |
| */ |
| void vsp1_device_put(struct vsp1_device *vsp1) |
| { |
| pm_runtime_put_sync(vsp1->dev); |
| } |
| |
| /* ----------------------------------------------------------------------------- |
| * Power Management |
| */ |
| |
| static int __maybe_unused vsp1_pm_suspend(struct device *dev) |
| { |
| struct vsp1_device *vsp1 = dev_get_drvdata(dev); |
| |
| vsp1_pipelines_suspend(vsp1); |
| pm_runtime_force_suspend(vsp1->dev); |
| |
| return 0; |
| } |
| |
| static int __maybe_unused vsp1_pm_resume(struct device *dev) |
| { |
| struct vsp1_device *vsp1 = dev_get_drvdata(dev); |
| |
| pm_runtime_force_resume(vsp1->dev); |
| vsp1_pipelines_resume(vsp1); |
| |
| return 0; |
| } |
| |
| static int __maybe_unused vsp1_pm_runtime_suspend(struct device *dev) |
| { |
| struct vsp1_device *vsp1 = dev_get_drvdata(dev); |
| |
| rcar_fcp_disable(vsp1->fcp); |
| |
| return 0; |
| } |
| |
| static int __maybe_unused vsp1_pm_runtime_resume(struct device *dev) |
| { |
| struct vsp1_device *vsp1 = dev_get_drvdata(dev); |
| int ret; |
| |
| if (vsp1->info) { |
| ret = vsp1_device_init(vsp1); |
| if (ret < 0) |
| return ret; |
| } |
| |
| return rcar_fcp_enable(vsp1->fcp); |
| } |
| |
| static const struct dev_pm_ops vsp1_pm_ops = { |
| SET_SYSTEM_SLEEP_PM_OPS(vsp1_pm_suspend, vsp1_pm_resume) |
| SET_RUNTIME_PM_OPS(vsp1_pm_runtime_suspend, vsp1_pm_runtime_resume, NULL) |
| }; |
| |
| /* ----------------------------------------------------------------------------- |
| * Platform Driver |
| */ |
| |
| static const struct vsp1_device_info vsp1_device_infos[] = { |
| { |
| .version = VI6_IP_VERSION_MODEL_VSPS_H2, |
| .model = "VSP1-S", |
| .gen = 2, |
| .features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_LUT |
| | VSP1_HAS_SRU | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 5, |
| .uds_count = 3, |
| .wpf_count = 4, |
| .num_bru_inputs = 4, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPR_H2, |
| .model = "VSP1-R", |
| .gen = 2, |
| .features = VSP1_HAS_BRU | VSP1_HAS_SRU | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 5, |
| .uds_count = 3, |
| .wpf_count = 4, |
| .num_bru_inputs = 4, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPD_GEN2, |
| .model = "VSP1-D", |
| .gen = 2, |
| .features = VSP1_HAS_BRU | VSP1_HAS_LIF | VSP1_HAS_LUT, |
| .rpf_count = 4, |
| .uds_count = 1, |
| .wpf_count = 1, |
| .num_bru_inputs = 4, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPS_M2, |
| .model = "VSP1-S", |
| .gen = 2, |
| .features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_LUT |
| | VSP1_HAS_SRU | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 5, |
| .uds_count = 1, |
| .wpf_count = 4, |
| .num_bru_inputs = 4, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPS_V2H, |
| .model = "VSP1V-S", |
| .gen = 2, |
| .features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_LUT |
| | VSP1_HAS_SRU | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 4, |
| .uds_count = 1, |
| .wpf_count = 4, |
| .num_bru_inputs = 4, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPD_V2H, |
| .model = "VSP1V-D", |
| .gen = 2, |
| .features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_LUT |
| | VSP1_HAS_LIF, |
| .rpf_count = 4, |
| .uds_count = 1, |
| .wpf_count = 1, |
| .num_bru_inputs = 4, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPI_GEN3, |
| .model = "VSP2-I", |
| .gen = 3, |
| .features = VSP1_HAS_CLU | VSP1_HAS_LUT | VSP1_HAS_SRU |
| | VSP1_HAS_WPF_HFLIP | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 1, |
| .uds_count = 1, |
| .wpf_count = 1, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPBD_GEN3, |
| .model = "VSP2-BD", |
| .gen = 3, |
| .features = VSP1_HAS_BRU | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 5, |
| .wpf_count = 1, |
| .num_bru_inputs = 5, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPBC_GEN3, |
| .model = "VSP2-BC", |
| .gen = 3, |
| .features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_LUT |
| | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 5, |
| .wpf_count = 1, |
| .num_bru_inputs = 5, |
| .uapi = true, |
| }, { |
| .version = VI6_IP_VERSION_MODEL_VSPD_GEN3, |
| .model = "VSP2-D", |
| .gen = 3, |
| .features = VSP1_HAS_BRU | VSP1_HAS_LIF | VSP1_HAS_WPF_VFLIP, |
| .rpf_count = 5, |
| .wpf_count = 2, |
| .num_bru_inputs = 5, |
| }, |
| }; |
| |
| static int vsp1_probe(struct platform_device *pdev) |
| { |
| struct vsp1_device *vsp1; |
| struct device_node *fcp_node; |
| struct resource *irq; |
| struct resource *io; |
| unsigned int i; |
| int ret; |
| |
| vsp1 = devm_kzalloc(&pdev->dev, sizeof(*vsp1), GFP_KERNEL); |
| if (vsp1 == NULL) |
| return -ENOMEM; |
| |
| vsp1->dev = &pdev->dev; |
| INIT_LIST_HEAD(&vsp1->entities); |
| INIT_LIST_HEAD(&vsp1->videos); |
| |
| platform_set_drvdata(pdev, vsp1); |
| |
| /* I/O and IRQ resources (clock managed by the clock PM domain) */ |
| io = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| vsp1->mmio = devm_ioremap_resource(&pdev->dev, io); |
| if (IS_ERR(vsp1->mmio)) |
| return PTR_ERR(vsp1->mmio); |
| |
| irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| if (!irq) { |
| dev_err(&pdev->dev, "missing IRQ\n"); |
| return -EINVAL; |
| } |
| |
| ret = devm_request_irq(&pdev->dev, irq->start, vsp1_irq_handler, |
| IRQF_SHARED, dev_name(&pdev->dev), vsp1); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "failed to request IRQ\n"); |
| return ret; |
| } |
| |
| /* FCP (optional) */ |
| fcp_node = of_parse_phandle(pdev->dev.of_node, "renesas,fcp", 0); |
| if (fcp_node) { |
| vsp1->fcp = rcar_fcp_get(fcp_node); |
| of_node_put(fcp_node); |
| if (IS_ERR(vsp1->fcp)) { |
| dev_dbg(&pdev->dev, "FCP not found (%ld)\n", |
| PTR_ERR(vsp1->fcp)); |
| return PTR_ERR(vsp1->fcp); |
| } |
| } |
| |
| /* Configure device parameters based on the version register. */ |
| pm_runtime_enable(&pdev->dev); |
| |
| ret = pm_runtime_get_sync(&pdev->dev); |
| if (ret < 0) |
| goto done; |
| |
| vsp1->version = vsp1_read(vsp1, VI6_IP_VERSION); |
| pm_runtime_put_sync(&pdev->dev); |
| |
| for (i = 0; i < ARRAY_SIZE(vsp1_device_infos); ++i) { |
| if ((vsp1->version & VI6_IP_VERSION_MODEL_MASK) == |
| vsp1_device_infos[i].version) { |
| vsp1->info = &vsp1_device_infos[i]; |
| break; |
| } |
| } |
| |
| if (!vsp1->info) { |
| dev_err(&pdev->dev, "unsupported IP version 0x%08x\n", |
| vsp1->version); |
| ret = -ENXIO; |
| goto done; |
| } |
| |
| dev_dbg(&pdev->dev, "IP version 0x%08x\n", vsp1->version); |
| |
| /* Instanciate entities */ |
| ret = vsp1_create_entities(vsp1); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "failed to create entities\n"); |
| goto done; |
| } |
| |
| done: |
| if (ret) |
| pm_runtime_disable(&pdev->dev); |
| |
| return ret; |
| } |
| |
| static int vsp1_remove(struct platform_device *pdev) |
| { |
| struct vsp1_device *vsp1 = platform_get_drvdata(pdev); |
| |
| vsp1_destroy_entities(vsp1); |
| rcar_fcp_put(vsp1->fcp); |
| |
| pm_runtime_disable(&pdev->dev); |
| |
| return 0; |
| } |
| |
| static const struct of_device_id vsp1_of_match[] = { |
| { .compatible = "renesas,vsp1" }, |
| { .compatible = "renesas,vsp2" }, |
| { }, |
| }; |
| |
| static struct platform_driver vsp1_platform_driver = { |
| .probe = vsp1_probe, |
| .remove = vsp1_remove, |
| .driver = { |
| .name = "vsp1", |
| .pm = &vsp1_pm_ops, |
| .of_match_table = vsp1_of_match, |
| }, |
| }; |
| |
| module_platform_driver(vsp1_platform_driver); |
| |
| MODULE_ALIAS("vsp1"); |
| MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>"); |
| MODULE_DESCRIPTION("Renesas VSP1 Driver"); |
| MODULE_LICENSE("GPL"); |