diff mbox series

[v2,2/3] drm/msm/dp: initialize audio_comp when audio starts

Message ID 1618434170-28302-1-git-send-email-khsieh@codeaurora.org
State New
Headers show
Series None | expand

Commit Message

Kuogee Hsieh April 14, 2021, 9:02 p.m. UTC
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@codeaurora.org>
---
 drivers/gpu/drm/msm/dp/dp_audio.c   |  1 +
 drivers/gpu/drm/msm/dp/dp_display.c | 13 ++++++++-----
 drivers/gpu/drm/msm/dp/dp_display.h |  1 +
 3 files changed, 10 insertions(+), 5 deletions(-)

Comments

Kuogee Hsieh April 15, 2021, 5:40 p.m. UTC | #1
On 2021-04-14 14:22, Stephen Boyd wrote:
> 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@codeaurora.org>
> 
> 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.
> 
This is my mistake, it still need signal audio here, will fix it

>> -       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))
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/dp/dp_audio.c b/drivers/gpu/drm/msm/dp/dp_audio.c
index 82a8673..52994f2 100644
--- a/drivers/gpu/drm/msm/dp/dp_audio.c
+++ b/drivers/gpu/drm/msm/dp/dp_audio.c
@@ -527,6 +527,7 @@  int dp_audio_hw_params(struct device *dev,
 	dp_audio_setup_acr(audio);
 	dp_audio_safe_to_exit_level(audio);
 	dp_audio_enable(audio, true);
+	dp_display_start_audio(dp_display);
 	dp_display->audio_enabled = true;
 
 end:
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)
+{
+	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 */
-	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))
diff --git a/drivers/gpu/drm/msm/dp/dp_display.h b/drivers/gpu/drm/msm/dp/dp_display.h
index 6092ba1..55fe0d4 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.h
+++ b/drivers/gpu/drm/msm/dp/dp_display.h
@@ -34,6 +34,7 @@  int dp_display_get_modes(struct msm_dp *dp_display,
 int dp_display_request_irq(struct msm_dp *dp_display);
 bool dp_display_check_video_test(struct msm_dp *dp_display);
 int dp_display_get_test_bpp(struct msm_dp *dp_display);
+void dp_display_start_audio(struct msm_dp *dp_display);
 void dp_display_signal_audio_complete(struct msm_dp *dp_display);
 
 #endif /* _DP_DISPLAY_H_ */