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![Kieran Bingham](/assets/img/avatar_default.png)
The DFE and FRE interrupts are both fired at frame completion, as each display list processes a single frame. This won't be true anymore when using image partitioning, switch to DFE in preparation. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran+renesas@bingham.xyz> Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
789 lines
18 KiB
C
789 lines
18 KiB
C
/*
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* vsp1_drv.c -- R-Car VSP1 Driver
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*
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* Copyright (C) 2013-2015 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/videodev2.h>
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#include <media/rcar-fcp.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1.h"
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#include "vsp1_bru.h"
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#include "vsp1_clu.h"
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#include "vsp1_dl.h"
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#include "vsp1_drm.h"
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#include "vsp1_hsit.h"
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#include "vsp1_lif.h"
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#include "vsp1_lut.h"
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#include "vsp1_pipe.h"
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#include "vsp1_rwpf.h"
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#include "vsp1_sru.h"
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#include "vsp1_uds.h"
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#include "vsp1_video.h"
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/* -----------------------------------------------------------------------------
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* Interrupt Handling
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*/
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static irqreturn_t vsp1_irq_handler(int irq, void *data)
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{
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u32 mask = VI6_WFP_IRQ_STA_DFE | VI6_WFP_IRQ_STA_FRE;
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struct vsp1_device *vsp1 = data;
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irqreturn_t ret = IRQ_NONE;
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unsigned int i;
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u32 status;
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for (i = 0; i < vsp1->info->wpf_count; ++i) {
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struct vsp1_rwpf *wpf = vsp1->wpf[i];
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if (wpf == NULL)
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continue;
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status = vsp1_read(vsp1, VI6_WPF_IRQ_STA(i));
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vsp1_write(vsp1, VI6_WPF_IRQ_STA(i), ~status & mask);
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if (status & VI6_WFP_IRQ_STA_DFE) {
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vsp1_pipeline_frame_end(wpf->pipe);
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ret = IRQ_HANDLED;
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}
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}
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status = vsp1_read(vsp1, VI6_DISP_IRQ_STA);
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vsp1_write(vsp1, VI6_DISP_IRQ_STA, ~status & VI6_DISP_IRQ_STA_DST);
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if (status & VI6_DISP_IRQ_STA_DST) {
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vsp1_drm_display_start(vsp1);
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ret = IRQ_HANDLED;
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}
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return ret;
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}
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/* -----------------------------------------------------------------------------
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* Entities
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*/
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/*
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* vsp1_create_sink_links - Create links from all sources to the given sink
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*
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* This function creates media links from all valid sources to the given sink
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* pad. Links that would be invalid according to the VSP1 hardware capabilities
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* are skipped. Those include all links
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*
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* - from a UDS to a UDS (UDS entities can't be chained)
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* - from an entity to itself (no loops are allowed)
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*/
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static int vsp1_create_sink_links(struct vsp1_device *vsp1,
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struct vsp1_entity *sink)
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{
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struct media_entity *entity = &sink->subdev.entity;
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struct vsp1_entity *source;
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unsigned int pad;
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int ret;
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list_for_each_entry(source, &vsp1->entities, list_dev) {
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u32 flags;
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if (source->type == sink->type)
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continue;
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if (source->type == VSP1_ENTITY_LIF ||
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source->type == VSP1_ENTITY_WPF)
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continue;
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flags = source->type == VSP1_ENTITY_RPF &&
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sink->type == VSP1_ENTITY_WPF &&
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source->index == sink->index
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? MEDIA_LNK_FL_ENABLED : 0;
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for (pad = 0; pad < entity->num_pads; ++pad) {
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if (!(entity->pads[pad].flags & MEDIA_PAD_FL_SINK))
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continue;
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ret = media_create_pad_link(&source->subdev.entity,
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source->source_pad,
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entity, pad, flags);
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if (ret < 0)
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return ret;
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if (flags & MEDIA_LNK_FL_ENABLED)
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source->sink = entity;
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}
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}
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return 0;
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}
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static int vsp1_uapi_create_links(struct vsp1_device *vsp1)
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{
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struct vsp1_entity *entity;
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unsigned int i;
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int ret;
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list_for_each_entry(entity, &vsp1->entities, list_dev) {
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if (entity->type == VSP1_ENTITY_LIF ||
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entity->type == VSP1_ENTITY_RPF)
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continue;
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ret = vsp1_create_sink_links(vsp1, entity);
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if (ret < 0)
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return ret;
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}
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if (vsp1->lif) {
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ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity,
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RWPF_PAD_SOURCE,
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&vsp1->lif->entity.subdev.entity,
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LIF_PAD_SINK, 0);
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if (ret < 0)
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return ret;
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}
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for (i = 0; i < vsp1->info->rpf_count; ++i) {
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struct vsp1_rwpf *rpf = vsp1->rpf[i];
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ret = media_create_pad_link(&rpf->video->video.entity, 0,
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&rpf->entity.subdev.entity,
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RWPF_PAD_SINK,
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MEDIA_LNK_FL_ENABLED |
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MEDIA_LNK_FL_IMMUTABLE);
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if (ret < 0)
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return ret;
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}
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for (i = 0; i < vsp1->info->wpf_count; ++i) {
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/* Connect the video device to the WPF. All connections are
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* immutable.
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*/
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struct vsp1_rwpf *wpf = vsp1->wpf[i];
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ret = media_create_pad_link(&wpf->entity.subdev.entity,
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RWPF_PAD_SOURCE,
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&wpf->video->video.entity, 0,
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MEDIA_LNK_FL_IMMUTABLE |
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MEDIA_LNK_FL_ENABLED);
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if (ret < 0)
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return ret;
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}
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return 0;
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}
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static void vsp1_destroy_entities(struct vsp1_device *vsp1)
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{
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struct vsp1_entity *entity, *_entity;
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struct vsp1_video *video, *_video;
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list_for_each_entry_safe(entity, _entity, &vsp1->entities, list_dev) {
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list_del(&entity->list_dev);
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vsp1_entity_destroy(entity);
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}
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list_for_each_entry_safe(video, _video, &vsp1->videos, list) {
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list_del(&video->list);
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vsp1_video_cleanup(video);
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}
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v4l2_device_unregister(&vsp1->v4l2_dev);
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if (vsp1->info->uapi)
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media_device_unregister(&vsp1->media_dev);
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media_device_cleanup(&vsp1->media_dev);
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if (!vsp1->info->uapi)
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vsp1_drm_cleanup(vsp1);
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}
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static int vsp1_create_entities(struct vsp1_device *vsp1)
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{
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struct media_device *mdev = &vsp1->media_dev;
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struct v4l2_device *vdev = &vsp1->v4l2_dev;
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struct vsp1_entity *entity;
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unsigned int i;
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int ret;
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mdev->dev = vsp1->dev;
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mdev->hw_revision = vsp1->version;
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strlcpy(mdev->model, vsp1->info->model, sizeof(mdev->model));
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snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s",
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dev_name(mdev->dev));
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media_device_init(mdev);
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vsp1->media_ops.link_setup = vsp1_entity_link_setup;
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/* Don't perform link validation when the userspace API is disabled as
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* the pipeline is configured internally by the driver in that case, and
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* its configuration can thus be trusted.
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*/
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if (vsp1->info->uapi)
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vsp1->media_ops.link_validate = v4l2_subdev_link_validate;
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vdev->mdev = mdev;
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ret = v4l2_device_register(vsp1->dev, vdev);
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if (ret < 0) {
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dev_err(vsp1->dev, "V4L2 device registration failed (%d)\n",
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ret);
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goto done;
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}
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/* Instantiate all the entities. */
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if (vsp1->info->features & VSP1_HAS_BRU) {
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vsp1->bru = vsp1_bru_create(vsp1);
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if (IS_ERR(vsp1->bru)) {
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ret = PTR_ERR(vsp1->bru);
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goto done;
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}
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list_add_tail(&vsp1->bru->entity.list_dev, &vsp1->entities);
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}
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if (vsp1->info->features & VSP1_HAS_CLU) {
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vsp1->clu = vsp1_clu_create(vsp1);
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if (IS_ERR(vsp1->clu)) {
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ret = PTR_ERR(vsp1->clu);
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goto done;
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}
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list_add_tail(&vsp1->clu->entity.list_dev, &vsp1->entities);
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}
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vsp1->hsi = vsp1_hsit_create(vsp1, true);
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if (IS_ERR(vsp1->hsi)) {
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ret = PTR_ERR(vsp1->hsi);
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goto done;
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}
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list_add_tail(&vsp1->hsi->entity.list_dev, &vsp1->entities);
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vsp1->hst = vsp1_hsit_create(vsp1, false);
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if (IS_ERR(vsp1->hst)) {
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ret = PTR_ERR(vsp1->hst);
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goto done;
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}
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list_add_tail(&vsp1->hst->entity.list_dev, &vsp1->entities);
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/* The LIF is only supported when used in conjunction with the DU, in
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* which case the userspace API is disabled. If the userspace API is
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* enabled skip the LIF, even when present.
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*/
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if (vsp1->info->features & VSP1_HAS_LIF && !vsp1->info->uapi) {
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vsp1->lif = vsp1_lif_create(vsp1);
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if (IS_ERR(vsp1->lif)) {
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ret = PTR_ERR(vsp1->lif);
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goto done;
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}
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list_add_tail(&vsp1->lif->entity.list_dev, &vsp1->entities);
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}
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if (vsp1->info->features & VSP1_HAS_LUT) {
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vsp1->lut = vsp1_lut_create(vsp1);
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if (IS_ERR(vsp1->lut)) {
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ret = PTR_ERR(vsp1->lut);
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goto done;
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}
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list_add_tail(&vsp1->lut->entity.list_dev, &vsp1->entities);
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}
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for (i = 0; i < vsp1->info->rpf_count; ++i) {
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struct vsp1_rwpf *rpf;
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rpf = vsp1_rpf_create(vsp1, i);
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if (IS_ERR(rpf)) {
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ret = PTR_ERR(rpf);
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goto done;
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}
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vsp1->rpf[i] = rpf;
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list_add_tail(&rpf->entity.list_dev, &vsp1->entities);
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if (vsp1->info->uapi) {
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struct vsp1_video *video = vsp1_video_create(vsp1, rpf);
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if (IS_ERR(video)) {
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ret = PTR_ERR(video);
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goto done;
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}
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list_add_tail(&video->list, &vsp1->videos);
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}
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}
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if (vsp1->info->features & VSP1_HAS_SRU) {
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vsp1->sru = vsp1_sru_create(vsp1);
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if (IS_ERR(vsp1->sru)) {
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ret = PTR_ERR(vsp1->sru);
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goto done;
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}
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list_add_tail(&vsp1->sru->entity.list_dev, &vsp1->entities);
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}
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for (i = 0; i < vsp1->info->uds_count; ++i) {
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struct vsp1_uds *uds;
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uds = vsp1_uds_create(vsp1, i);
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if (IS_ERR(uds)) {
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ret = PTR_ERR(uds);
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goto done;
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}
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vsp1->uds[i] = uds;
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list_add_tail(&uds->entity.list_dev, &vsp1->entities);
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}
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for (i = 0; i < vsp1->info->wpf_count; ++i) {
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struct vsp1_rwpf *wpf;
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wpf = vsp1_wpf_create(vsp1, i);
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if (IS_ERR(wpf)) {
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ret = PTR_ERR(wpf);
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goto done;
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}
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vsp1->wpf[i] = wpf;
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list_add_tail(&wpf->entity.list_dev, &vsp1->entities);
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if (vsp1->info->uapi) {
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struct vsp1_video *video = vsp1_video_create(vsp1, wpf);
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if (IS_ERR(video)) {
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ret = PTR_ERR(video);
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goto done;
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}
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list_add_tail(&video->list, &vsp1->videos);
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wpf->entity.sink = &video->video.entity;
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}
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}
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/* Register all subdevs. */
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list_for_each_entry(entity, &vsp1->entities, list_dev) {
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ret = v4l2_device_register_subdev(&vsp1->v4l2_dev,
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&entity->subdev);
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if (ret < 0)
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goto done;
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}
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/* Create links. */
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if (vsp1->info->uapi)
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ret = vsp1_uapi_create_links(vsp1);
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else
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ret = vsp1_drm_create_links(vsp1);
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if (ret < 0)
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goto done;
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|
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/* Register subdev nodes if the userspace API is enabled or initialize
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* the DRM pipeline otherwise.
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*/
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if (vsp1->info->uapi) {
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ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev);
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if (ret < 0)
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goto done;
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|
|
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ret = media_device_register(mdev);
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} else {
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ret = vsp1_drm_init(vsp1);
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}
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done:
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if (ret < 0)
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vsp1_destroy_entities(vsp1);
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|
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return ret;
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}
|
|
|
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int vsp1_reset_wpf(struct vsp1_device *vsp1, unsigned int index)
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{
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unsigned int timeout;
|
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u32 status;
|
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|
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status = vsp1_read(vsp1, VI6_STATUS);
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if (!(status & VI6_STATUS_SYS_ACT(index)))
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return 0;
|
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|
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vsp1_write(vsp1, VI6_SRESET, VI6_SRESET_SRTS(index));
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for (timeout = 10; timeout > 0; --timeout) {
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status = vsp1_read(vsp1, VI6_STATUS);
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if (!(status & VI6_STATUS_SYS_ACT(index)))
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break;
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|
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usleep_range(1000, 2000);
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}
|
|
|
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if (!timeout) {
|
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dev_err(vsp1->dev, "failed to reset wpf.%u\n", index);
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return -ETIMEDOUT;
|
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}
|
|
|
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return 0;
|
|
}
|
|
|
|
static int vsp1_device_init(struct vsp1_device *vsp1)
|
|
{
|
|
unsigned int i;
|
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int ret;
|
|
|
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/* Reset any channel that might be running. */
|
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for (i = 0; i < vsp1->info->wpf_count; ++i) {
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ret = vsp1_reset_wpf(vsp1, i);
|
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if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
vsp1_write(vsp1, VI6_CLK_DCSWT, (8 << VI6_CLK_DCSWT_CSTPW_SHIFT) |
|
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(8 << VI6_CLK_DCSWT_CSTRW_SHIFT));
|
|
|
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for (i = 0; i < vsp1->info->rpf_count; ++i)
|
|
vsp1_write(vsp1, VI6_DPR_RPF_ROUTE(i), VI6_DPR_NODE_UNUSED);
|
|
|
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for (i = 0; i < vsp1->info->uds_count; ++i)
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vsp1_write(vsp1, VI6_DPR_UDS_ROUTE(i), VI6_DPR_NODE_UNUSED);
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|
|
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vsp1_write(vsp1, VI6_DPR_SRU_ROUTE, VI6_DPR_NODE_UNUSED);
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vsp1_write(vsp1, VI6_DPR_LUT_ROUTE, VI6_DPR_NODE_UNUSED);
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vsp1_write(vsp1, VI6_DPR_CLU_ROUTE, VI6_DPR_NODE_UNUSED);
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vsp1_write(vsp1, VI6_DPR_HST_ROUTE, VI6_DPR_NODE_UNUSED);
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vsp1_write(vsp1, VI6_DPR_HSI_ROUTE, VI6_DPR_NODE_UNUSED);
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vsp1_write(vsp1, VI6_DPR_BRU_ROUTE, VI6_DPR_NODE_UNUSED);
|
|
|
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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");
|