From: Ezequiel Garcia Date: Fri, 15 Jun 2018 19:07:25 +0000 (-0400) Subject: media: mtk-mdp: Add locks for capture and output vb2_queues X-Git-Tag: for-linus-20180825~86^2~307 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=f1db5d978d88c75cfb1bcac74fbf06f77b86b7c3;p=linux-2.6-block.git media: mtk-mdp: Add locks for capture and output vb2_queues Use the mutex in struct mtk_mdp_ctx to protect the capture and output vb2_queues. This allows to replace the ad-hoc wait_{prepare, finish} with vb2_ops_wait_{prepare, finish}. Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c index 583d47724ee8..c2e2f5f1ebf1 100644 --- a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c @@ -394,20 +394,6 @@ static bool mtk_mdp_ctx_state_is_set(struct mtk_mdp_ctx *ctx, u32 mask) return ret; } -static void mtk_mdp_ctx_lock(struct vb2_queue *vq) -{ - struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vq); - - mutex_lock(&ctx->mdp_dev->lock); -} - -static void mtk_mdp_ctx_unlock(struct vb2_queue *vq) -{ - struct mtk_mdp_ctx *ctx = vb2_get_drv_priv(vq); - - mutex_unlock(&ctx->mdp_dev->lock); -} - static void mtk_mdp_set_frame_size(struct mtk_mdp_frame *frame, int width, int height) { @@ -625,10 +611,10 @@ static const struct vb2_ops mtk_mdp_m2m_qops = { .queue_setup = mtk_mdp_m2m_queue_setup, .buf_prepare = mtk_mdp_m2m_buf_prepare, .buf_queue = mtk_mdp_m2m_buf_queue, - .wait_prepare = mtk_mdp_ctx_unlock, - .wait_finish = mtk_mdp_ctx_lock, .stop_streaming = mtk_mdp_m2m_stop_streaming, .start_streaming = mtk_mdp_m2m_start_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, }; static int mtk_mdp_m2m_querycap(struct file *file, void *fh, @@ -996,6 +982,7 @@ static int mtk_mdp_m2m_queue_init(void *priv, struct vb2_queue *src_vq, src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; src_vq->dev = &ctx->mdp_dev->pdev->dev; + src_vq->lock = &ctx->mdp_dev->lock; ret = vb2_queue_init(src_vq); if (ret) @@ -1010,6 +997,7 @@ static int mtk_mdp_m2m_queue_init(void *priv, struct vb2_queue *src_vq, dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; dst_vq->dev = &ctx->mdp_dev->pdev->dev; + dst_vq->lock = &ctx->mdp_dev->lock; return vb2_queue_init(dst_vq); }