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drm/bridge: tc358767: disable only video stream in tc_stream_disable

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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: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528082747.3631-12-tomi.valkeinen@ti.com
This commit is contained in:
Tomi Valkeinen 2019-05-28 11:27:34 +03:00 committed by Andrzej Hajda
parent cb3263b2df
commit 1c928267b1
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/bridge/tc358767.c
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@ -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);