Hi Stephen
Thanks for the review.
On 2020-11-02 13:19, Stephen Boyd wrote:
Quoting Abhinav Kumar (2020-10-29 13:55:09)
For sinks that do not support audio, there is no need to notify
audio subsystem of the connection event.
This will make sure that audio routes only to the primary display
when connected to such sinks.
Does this need a Fixes tag? Or it's just an optimization patch?
This is an unhandled corner case ( VGA dongle ) for DP audio and will
make
sure we do not switch audio output from primary to external when
connected to
a sink which does not support audio.
I thought of adding a fixes tag pointing to
https://patchwork.freedesktop.org/patch/390236/.
But at the same time, thought this can go in as a standlone patch as
well.
If you think its required, I will add the fixes tag pointing to the base
audio patch.
Signed-off-by: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/dp/dp_display.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c
b/drivers/gpu/drm/msm/dp/dp_display.c
index 4a5735564be2..d970980b0ca5 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -555,8 +555,16 @@ static int dp_connect_pending_timeout(struct
dp_display_private *dp, u32 data)
static void dp_display_handle_plugged_change(struct msm_dp
*dp_display,
bool plugged)
{
- if (dp_display->plugged_cb && dp_display->codec_dev)
- dp_display->plugged_cb(dp_display->codec_dev,
plugged);
+ struct dp_display_private *dp;
+
+ dp = container_of(g_dp_display,
What is g_dp_display? I guess this doesn't compile?
g_dp_display is the global dp_display pointer in the dp_display.c file.
It does compile.
+ struct dp_display_private, dp_display);
+
+ if (dp_display->plugged_cb && dp_display->codec_dev) {
+ /* notify audio subsystem only if sink supports audio
*/
+ if (dp->audio_supported)
Can we combine this into the above if statement?
+ dp_display->plugged_cb(dp_display->codec_dev,
plugged);
Then this isn't as nested.
Ok, will do ...
+ }
}
static int dp_hpd_unplug_handle(struct dp_display_private *dp, u32
data)
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