Quoting Kuogee Hsieh (2021-04-14 14:02:50)
> Initialize audio_comp when audio starts and wait for audio_comp at
> dp_display_disable(). This will take care of both dongle unplugged
> and display off (suspend) cases.
>
> Changes in v2:
> -- add dp_display_start_audio()
>
> Signed-off-by: Kuogee Hsieh <khsieh@xxxxxxxxxxxxxx>
Looking better. Thanks!
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
> index 0ba71c7..8a69bcd 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -177,6 +177,14 @@ static int dp_del_event(struct dp_display_private *dp_priv, u32 event)
>
> return 0;
> }
> +void dp_display_start_audio(struct msm_dp *dp_display)
Please unstick this from previous function by adding a newline above.
> +{
> + struct dp_display_private *dp;
> +
> + dp = container_of(dp_display, struct dp_display_private, dp_display);
> +
> + reinit_completion(&dp->audio_comp);
> +}
>
> void dp_display_signal_audio_complete(struct msm_dp *dp_display)
> {
> @@ -648,10 +656,6 @@ static int dp_hpd_unplug_handle(struct dp_display_private *dp, u32 data)
> /* start sentinel checking in case of missing uevent */
> dp_add_event(dp, EV_DISCONNECT_PENDING_TIMEOUT, 0, DP_TIMEOUT_5_SECOND);
>
> - /* signal the disconnect event early to ensure proper teardown */
This doesn't need to be done early anymore? Please mention why in the
commit text.
> - reinit_completion(&dp->audio_comp);
> - dp_display_handle_plugged_change(g_dp_display, false);
> -
> dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_PLUG_INT_MASK |
> DP_DP_IRQ_HPD_INT_MASK, true);
>
> @@ -894,7 +898,6 @@ static int dp_display_disable(struct dp_display_private *dp, u32 data)
> /* wait only if audio was enabled */
> if (dp_display->audio_enabled) {
> /* signal the disconnect event */
> - reinit_completion(&dp->audio_comp);
> dp_display_handle_plugged_change(dp_display, false);
> if (!wait_for_completion_timeout(&dp->audio_comp,
> HZ * 5))
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