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Commit 1c928267 authored by Tomi Valkeinen's avatar Tomi Valkeinen Committed by Andrzej Hajda
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drm/bridge: tc358767: disable only video stream in tc_stream_disable 



Currently the code writes 0 to DP0CTL in tc_stream_disable(), which
disables the whole DP link instead of just the video stream. We always
disable the link and the stream together from tc_bridge_disable(), so
this doesn't cause any issues.

Nevertheless, fix this by only clearing VID_EN in tc_stream_disable to
stop the video stream while keeping the link enabled.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528082747.3631-12-tomi.valkeinen@ti.com
parent cb3263b2

drivers/gpu/drm/bridge/tc358767.c

+4 −1
Original line number Diff line number Diff line
@@ -1076,10 +1076,13 @@ static int tc_stream_enable(struct tc_data *tc) 
static int tc_stream_disable(struct tc_data *tc)

{

	int ret;

	u32 val;



	dev_dbg(tc->dev, "disable video stream\n");



	tc_write(DP0CTL, 0);

	tc_read(DP0CTL, &val);

	val &= ~VID_EN;

	tc_write(DP0CTL, val);



	tc_pxl_pll_dis(tc);