From f2ed459db7a1537cddc50a58ee26df6b8f3fbe1f Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 28 Jul 2015 16:16:05 -0300 Subject: [PATCH] [media] v4l: vsp1: Make the userspace API optional The R-Car Gen3 SoCs include VSP instances dedicated to the DU that will be controlled entirely by the rcar-du-drm driver through the KMS API. To support that use case make the userspace V4L2 API optional. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/vsp1/vsp1.h | 1 + drivers/media/platform/vsp1/vsp1_drv.c | 46 ++++++++++++++--------- drivers/media/platform/vsp1/vsp1_entity.c | 2 +- drivers/media/platform/vsp1/vsp1_sru.c | 6 ++- drivers/media/platform/vsp1/vsp1_wpf.c | 6 ++- 5 files changed, 38 insertions(+), 23 deletions(-) diff --git a/drivers/media/platform/vsp1/vsp1.h b/drivers/media/platform/vsp1/vsp1.h index d980f32aac0b..4fd4386a7049 100644 --- a/drivers/media/platform/vsp1/vsp1.h +++ b/drivers/media/platform/vsp1/vsp1.h @@ -50,6 +50,7 @@ struct vsp1_platform_data { unsigned int uds_count; unsigned int wpf_count; unsigned int num_bru_inputs; + bool uapi; }; struct vsp1_device { diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c index 8d67a06c86ea..63892b2f4484 100644 --- a/drivers/media/platform/vsp1/vsp1_drv.c +++ b/drivers/media/platform/vsp1/vsp1_drv.c @@ -143,6 +143,9 @@ static int vsp1_create_links(struct vsp1_device *vsp1) return ret; } + if (!vsp1->pdata.uapi) + return 0; + for (i = 0; i < vsp1->pdata.rpf_count; ++i) { struct vsp1_rwpf *rpf = vsp1->rpf[i]; @@ -267,7 +270,6 @@ static int vsp1_create_entities(struct vsp1_device *vsp1) } for (i = 0; i < vsp1->pdata.rpf_count; ++i) { - struct vsp1_video *video; struct vsp1_rwpf *rpf; rpf = vsp1_rpf_create(vsp1, i); @@ -279,13 +281,16 @@ static int vsp1_create_entities(struct vsp1_device *vsp1) vsp1->rpf[i] = rpf; list_add_tail(&rpf->entity.list_dev, &vsp1->entities); - video = vsp1_video_create(vsp1, rpf); - if (IS_ERR(video)) { - ret = PTR_ERR(video); - goto done; - } + if (vsp1->pdata.uapi) { + struct vsp1_video *video = vsp1_video_create(vsp1, rpf); - list_add_tail(&video->list, &vsp1->videos); + if (IS_ERR(video)) { + ret = PTR_ERR(video); + goto done; + } + + list_add_tail(&video->list, &vsp1->videos); + } } if (vsp1->pdata.features & VSP1_HAS_SRU) { @@ -312,7 +317,6 @@ static int vsp1_create_entities(struct vsp1_device *vsp1) } for (i = 0; i < vsp1->pdata.wpf_count; ++i) { - struct vsp1_video *video; struct vsp1_rwpf *wpf; wpf = vsp1_wpf_create(vsp1, i); @@ -324,14 +328,17 @@ static int vsp1_create_entities(struct vsp1_device *vsp1) vsp1->wpf[i] = wpf; list_add_tail(&wpf->entity.list_dev, &vsp1->entities); - video = vsp1_video_create(vsp1, wpf); - if (IS_ERR(video)) { - ret = PTR_ERR(video); - goto done; - } + if (vsp1->pdata.uapi) { + struct vsp1_video *video = vsp1_video_create(vsp1, wpf); - list_add_tail(&video->list, &vsp1->videos); - wpf->entity.sink = &video->video.entity; + 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. */ @@ -347,9 +354,11 @@ static int vsp1_create_entities(struct vsp1_device *vsp1) if (ret < 0) goto done; - ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev); - if (ret < 0) - goto done; + if (vsp1->pdata.uapi) { + ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev); + if (ret < 0) + goto done; + } ret = media_device_register(mdev); @@ -545,6 +554,7 @@ static int vsp1_parse_dt(struct vsp1_device *vsp1) pdata->features |= VSP1_HAS_BRU; pdata->num_bru_inputs = 4; + pdata->uapi = true; return 0; } diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c index 479029fd4e90..338a1b0b4fad 100644 --- a/drivers/media/platform/vsp1/vsp1_entity.c +++ b/drivers/media/platform/vsp1/vsp1_entity.c @@ -45,7 +45,7 @@ int vsp1_entity_set_streaming(struct vsp1_entity *entity, bool streaming) if (!streaming) return 0; - if (!entity->subdev.ctrl_handler) + if (!entity->vsp1->pdata.uapi || !entity->subdev.ctrl_handler) return 0; ret = v4l2_ctrl_handler_setup(entity->subdev.ctrl_handler); diff --git a/drivers/media/platform/vsp1/vsp1_sru.c b/drivers/media/platform/vsp1/vsp1_sru.c index d41ae950d1a1..cff4a1d82e3b 100644 --- a/drivers/media/platform/vsp1/vsp1_sru.c +++ b/drivers/media/platform/vsp1/vsp1_sru.c @@ -151,11 +151,13 @@ static int sru_s_stream(struct v4l2_subdev *subdev, int enable) /* Take the control handler lock to ensure that the CTRL0 value won't be * changed behind our back by a set control operation. */ - mutex_lock(sru->ctrls.lock); + if (sru->entity.vsp1->pdata.uapi) + mutex_lock(sru->ctrls.lock); ctrl0 |= vsp1_sru_read(sru, VI6_SRU_CTRL0) & (VI6_SRU_CTRL0_PARAM0_MASK | VI6_SRU_CTRL0_PARAM1_MASK); vsp1_sru_write(sru, VI6_SRU_CTRL0, ctrl0); - mutex_unlock(sru->ctrls.lock); + if (sru->entity.vsp1->pdata.uapi) + mutex_unlock(sru->ctrls.lock); vsp1_sru_write(sru, VI6_SRU_CTRL1, VI6_SRU_CTRL1_PARAM5); diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c b/drivers/media/platform/vsp1/vsp1_wpf.c index d2537b46fc46..184a7e01aad5 100644 --- a/drivers/media/platform/vsp1/vsp1_wpf.c +++ b/drivers/media/platform/vsp1/vsp1_wpf.c @@ -151,10 +151,12 @@ static int wpf_s_stream(struct v4l2_subdev *subdev, int enable) /* Take the control handler lock to ensure that the PDV value won't be * changed behind our back by a set control operation. */ - mutex_lock(wpf->ctrls.lock); + if (vsp1->pdata.uapi) + mutex_lock(wpf->ctrls.lock); outfmt |= vsp1_wpf_read(wpf, VI6_WPF_OUTFMT) & VI6_WPF_OUTFMT_PDV_MASK; vsp1_wpf_write(wpf, VI6_WPF_OUTFMT, outfmt); - mutex_unlock(wpf->ctrls.lock); + if (vsp1->pdata.uapi) + mutex_unlock(wpf->ctrls.lock); vsp1_write(vsp1, VI6_DPR_WPF_FPORCH(wpf->entity.index), VI6_DPR_WPF_FPORCH_FP_WPFN); -- 2.20.1