| Message ID | 1632932224-25102-1-git-send-email-khsieh@codeaurora.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [v2] drm/msm/dp: only signal audio when disconnected detected at dp_pm_resume | expand |
Quoting Kuogee Hsieh (2021-09-29 09:17:04) > Currently there is audio not working problem after system resume from suspend > if hdmi monitor stay plugged in at DUT. However this problem does not happen > at normal operation but at a particular test case. The root cause is DP driver > signal audio with connected state at resume which trigger audio trying to setup > audio data path through DP main link but failed due to display port is not setup > and enabled by upper layer framework yet. This patch only have DP driver signal > audio only when DP is in disconnected state so that audio option shows correct > state after system resume. DP driver will not signal audio with connected state > until display enabled executed by upper layer framework where display port is > setup completed and main link is running. > > Changes in V2: > -- add details commit text > > Fixes: 078867ce04ed ("drm/msm/dp: signal audio plugged change at dp_pm_resume") > Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org> > --- Reviewed-by: Stephen Boyd <swboyd@chromium.org>
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 0e543a03..6f13008 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -1356,14 +1356,14 @@ static int dp_pm_resume(struct device *dev) * can not declared display is connected unless * HDMI cable is plugged in and sink_count of * dongle become 1 + * also only signal audio when disconnected */ - if (dp->link->sink_count) + if (dp->link->sink_count) { dp->dp_display.is_connected = true; - else + } else { dp->dp_display.is_connected = false; - - dp_display_handle_plugged_change(g_dp_display, - dp->dp_display.is_connected); + dp_display_handle_plugged_change(g_dp_display, false); + } DRM_DEBUG_DP("After, sink_count=%d is_connected=%d core_inited=%d power_on=%d\n", dp->link->sink_count, dp->dp_display.is_connected,
Currently there is audio not working problem after system resume from suspend if hdmi monitor stay plugged in at DUT. However this problem does not happen at normal operation but at a particular test case. The root cause is DP driver signal audio with connected state at resume which trigger audio trying to setup audio data path through DP main link but failed due to display port is not setup and enabled by upper layer framework yet. This patch only have DP driver signal audio only when DP is in disconnected state so that audio option shows correct state after system resume. DP driver will not signal audio with connected state until display enabled executed by upper layer framework where display port is setup completed and main link is running. Changes in V2: -- add details commit text Fixes: 078867ce04ed ("drm/msm/dp: signal audio plugged change at dp_pm_resume") Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org> --- drivers/gpu/drm/msm/dp/dp_display.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)