diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2019-05-28 11:27:34 +0300 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2019-05-31 15:41:22 +0200 |
| commit | 1c928267b187a59ce96972a3102acb9ba72890e1 (patch) | |
| tree | 593ff646bea6c916215f0d064c10d2fe9f6ac459 /drivers/gpu/drm/bridge/tc358767.c | |
| parent | cb3263b2df976b104b85362a306d9d72dea0ef95 (diff) | |
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: 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
Diffstat (limited to 'drivers/gpu/drm/bridge/tc358767.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 2323a22656e8..f004db06dee9 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1076,10 +1076,13 @@ err: 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); |