diff mbox series

[v5,2/4] media: camss: vfe: Reserve VFE lines on stream start and link to CSID

Message ID 20221128144210.1028-3-quic_mmitkov@quicinc.com
State Superseded
Headers show
Series media: camss: sm8250: Virtual channels support for SM8250 | expand

Commit Message

Milen Mitkov (Consultant) Nov. 28, 2022, 2:42 p.m. UTC 
From: Milen Mitkov <quic_mmitkov@quicinc.com>

For multiple virtual channels support, each VFE line can be in either
ON, RESERVED or OFF states. This allows the starting and stopping
of a VFE line independently of other active VFE lines.

Also, link the CSID entity's source ports to corresponding VFE lines.

Signed-off-by: Milen Mitkov <quic_mmitkov@quicinc.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Robert Foss <robert.foss@linaro.org>
---
 drivers/media/platform/qcom/camss/camss-vfe.c | 1 +
 drivers/media/platform/qcom/camss/camss.c     | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index a26e4a5d87b6..e0832f3f4f25 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -740,6 +740,7 @@  static int vfe_set_stream(struct v4l2_subdev *sd, int enable)
 	int ret;
 
 	if (enable) {
+		line->output.state = VFE_OUTPUT_RESERVED;
 		ret = vfe->ops->vfe_enable(line);
 		if (ret < 0)
 			dev_err(vfe->camss->dev,
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 9cda284f1e71..547099f8ed14 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -1320,7 +1320,7 @@  static int camss_register_entities(struct camss *camss)
 					struct v4l2_subdev *vfe = &camss->vfe[k].line[j].subdev;
 
 					ret = media_create_pad_link(&csid->entity,
-								    MSM_CSID_PAD_SRC,
+								    MSM_CSID_PAD_FIRST_SRC + j,
 								    &vfe->entity,
 								    MSM_VFE_PAD_SINK,
 								    0);