[PATCH 4.4 094/137] [media] v4l: vsp1: Set the SRU CTRL0 register when starting the stream

From: Greg Kroah-Hartman
Date: Sun Apr 17 2016 - 22:39:02 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>

commit f6acfcdc5b8cdc9ddd53a459361820b9efe958c4 upstream.

Commit 58f896d859ce ("[media] v4l: vsp1: sru: Make the intensity
controllable during streaming") refactored the stream start code and
removed the SRU CTRL0 register write by mistake. Add it back.

Fixes: 58f896d859ce ("[media] v4l: vsp1: sru: Make the intensity controllable during streaming")

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/media/platform/vsp1/vsp1_sru.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/media/platform/vsp1/vsp1_sru.c
+++ b/drivers/media/platform/vsp1/vsp1_sru.c
@@ -154,6 +154,7 @@ static int sru_s_stream(struct v4l2_subd
mutex_lock(sru->ctrls.lock);
ctrl0 |= vsp1_sru_read(sru, VI6_SRU_CTRL0)
& (VI6_SRU_CTRL0_PARAM0_MASK | VI6_SRU_CTRL0_PARAM1_MASK);
+ vsp1_sru_write(sru, VI6_SRU_CTRL0, ctrl0);
mutex_unlock(sru->ctrls.lock);

vsp1_sru_write(sru, VI6_SRU_CTRL1, VI6_SRU_CTRL1_PARAM5);