[PATCH v2 11/21] [media] tc358743: put lanes in STOP state before starting streaming

[Philipp Zabel <p.zabel@pengutronix.de>]

Without calling tc358743_set_csi after stopping streaming (or calling
tc358743_s_dv_timings or tc358743_set_fmt from userspace after stopping
the stream), the i.MX6 MIPI CSI2 input fails waiting for lanes to enter
STOP state when streaming is started again.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
Change since v1:
 - Put lanes in stop state again after stopping streaming
---
 drivers/media/i2c/tc358743.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 1e3a0dd2..7f82932 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1466,6 +1466,10 @@ static int tc358743_g_mbus_config(struct v4l2_subdev *sd,
 static int tc358743_s_stream(struct v4l2_subdev *sd, int enable)
 {
 	enable_stream(sd, enable);
+	if (!enable) {
+		/* Put all lanes in PL-11 state (STOPSTATE) */
+		tc358743_set_csi(sd);
+	}
 
 	return 0;
 }
-- 
2.9.3