[PATCH 2/2] media: rockchip: rga: fix sequence number handling

[Michael Tretter]

The RGA driver didn't set the sequence numbers of the returned buffers.

Keep track of the CAPTURE and OUTPUT sequence numbers, and set the
sequence numbers in the source and destination buffers.

Signed-off-by: Michael Tretter <m.tretter at pengutronix.de>
---
 drivers/media/platform/rockchip/rga/rga-buf.c | 5 +++++
 drivers/media/platform/rockchip/rga/rga.c     | 4 ++++
 drivers/media/platform/rockchip/rga/rga.h     | 3 +++
 3 files changed, 12 insertions(+)

diff --git a/drivers/media/platform/rockchip/rga/rga-buf.c b/drivers/media/platform/rockchip/rga/rga-buf.c
index 77c7535893e3..48bb45ec0230 100644
--- a/drivers/media/platform/rockchip/rga/rga-buf.c
+++ b/drivers/media/platform/rockchip/rga/rga-buf.c
@@ -205,6 +205,11 @@ static int rga_buf_start_streaming(struct vb2_queue *q, unsigned int count)
 		return ret;
 	}
 
+	if (V4L2_TYPE_IS_OUTPUT(q->type))
+		ctx->osequence = 0;
+	else
+		ctx->csequence = 0;
+
 	return 0;
 }
 
diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index 00fdfa9e10bc..0e768f3e9eda 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -43,6 +43,8 @@ static void device_run(void *prv)
 	rga->curr = ctx;
 
 	src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	src->sequence = ctx->osequence++;
+
 	dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
 
 	rga_hw_start(rga, vb_to_rga(src), vb_to_rga(dst));
@@ -75,6 +77,8 @@ static irqreturn_t rga_isr(int irq, void *prv)
 
 		v4l2_m2m_buf_copy_metadata(src, dst, true);
 
+		dst->sequence = ctx->csequence++;
+
 		v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE);
 		v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);
 		v4l2_m2m_job_finish(rga->m2m_dev, ctx->fh.m2m_ctx);
diff --git a/drivers/media/platform/rockchip/rga/rga.h b/drivers/media/platform/rockchip/rga/rga.h
index 3502dff6055c..8105bb2efe57 100644
--- a/drivers/media/platform/rockchip/rga/rga.h
+++ b/drivers/media/platform/rockchip/rga/rga.h
@@ -57,6 +57,9 @@ struct rga_ctx {
 	struct rga_frame out;
 	struct v4l2_ctrl_handler ctrl_handler;
 
+	int osequence;
+	int csequence;
+
 	/* Control values */
 	u32 op;
 	u32 hflip;

-- 
2.39.2