Step 5 expects that the sensor is in LP11 mode. Use the new
pre_streamon callback to signal the sensor that it should switch into
LP11.
Signed-off-by: Michael Tretter <m.tretter@xxxxxxxxxxxxxx>
Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
Changelog:
v8: none
v7: none
v6: none
v5:
- ignore -ENOIOCTLCMD of pre_streamon for backwards compatibility
v4:
- new patch
---
drivers/staging/media/imx/imx6-mipi-csi2.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/imx/imx6-mipi-csi2.c b/drivers/staging/media/imx/imx6-mipi-csi2.c
index a0941fc2907b..558b256ac935 100644
--- a/drivers/staging/media/imx/imx6-mipi-csi2.c
+++ b/drivers/staging/media/imx/imx6-mipi-csi2.c
@@ -382,13 +382,17 @@ static int csi2_start(struct csi2_dev *csi2)
csi2_enable(csi2, true);
/* Step 5 */
+ ret = v4l2_subdev_call(csi2->src_sd, video, pre_streamon,
+ V4L2_SUBDEV_PRE_STREAMON_FL_MANUAL_LP);
+ if (ret && ret != -ENOIOCTLCMD)
+ goto err_assert_reset;
csi2_dphy_wait_stopstate(csi2, lanes);
/* Step 6 */
ret = v4l2_subdev_call(csi2->src_sd, video, s_stream, 1);
ret = (ret && ret != -ENOIOCTLCMD) ? ret : 0;
if (ret)
- goto err_assert_reset;
+ goto err_stop_lp11;
/* Step 7 */
ret = csi2_dphy_wait_clock_lane(csi2);
@@ -399,6 +403,8 @@ static int csi2_start(struct csi2_dev *csi2)
err_stop_upstream:
v4l2_subdev_call(csi2->src_sd, video, s_stream, 0);
+err_stop_lp11:
+ v4l2_subdev_call(csi2->src_sd, video, post_streamoff);
err_assert_reset:
csi2_enable(csi2, false);
err_disable_clk:
@@ -410,6 +416,7 @@ static void csi2_stop(struct csi2_dev *csi2)
{
/* stop upstream */
v4l2_subdev_call(csi2->src_sd, video, s_stream, 0);
+ v4l2_subdev_call(csi2->src_sd, video, post_streamoff);
csi2_enable(csi2, false);
clk_disable_unprepare(csi2->pix_clk);
--
2.30.2
