2021-08-10 15:31:36

by Kuogee Hsieh

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Subject: [PATCH v2] drm/msm/dp: add drm debug logs to dp_pm_resume/suspend

Changes in V2:
-- correct Fixes text
-- drop commit text

Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease of debugging")
Signed-off-by: Kuogee Hsieh <[email protected]>
---
drivers/gpu/drm/msm/dp/dp_display.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 8a85613..870b926 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1284,6 +1284,9 @@ static int dp_pm_resume(struct device *dev)

mutex_lock(&dp->event_mutex);

+ DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n",
+ dp->core_initialized, dp_display->power_on);
+
/* start from disconnected state */
dp->hpd_state = ST_DISCONNECTED;

@@ -1315,6 +1318,10 @@ static int dp_pm_resume(struct device *dev)
else
dp->dp_display.is_connected = 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,
+ dp->core_initialized, dp_display->power_on);
+
mutex_unlock(&dp->event_mutex);

return 0;
@@ -1330,6 +1337,9 @@ static int dp_pm_suspend(struct device *dev)

mutex_lock(&dp->event_mutex);

+ DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n",
+ dp->core_initialized, dp_display->power_on);
+
if (dp->core_initialized == true) {
/* mainlink enabled */
if (dp_power_clk_status(dp->power, DP_CTRL_PM))
@@ -1343,6 +1353,9 @@ static int dp_pm_suspend(struct device *dev)
/* host_init will be called at pm_resume */
dp->core_initialized = false;

+ DRM_DEBUG_DP("After, core_inited=%d power_on=%d\n",
+ dp->core_initialized, dp_display->power_on);
+
mutex_unlock(&dp->event_mutex);

return 0;
--
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a Linux Foundation Collaborative Project


2021-08-10 18:35:26

by Stephen Boyd

[permalink] [raw]
Subject: Re: [PATCH v2] drm/msm/dp: add drm debug logs to dp_pm_resume/suspend

Quoting Kuogee Hsieh (2021-08-10 08:29:22)
> Changes in V2:
> -- correct Fixes text
> -- drop commit text
>
> Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease of debugging")
> Signed-off-by: Kuogee Hsieh <[email protected]>
> ---

Reviewed-by: Stephen Boyd <[email protected]>

2021-08-10 18:35:42

by Stephen Boyd

[permalink] [raw]
Subject: Re: [PATCH v2] drm/msm/dp: add drm debug logs to dp_pm_resume/suspend

Quoting Kuogee Hsieh (2021-08-10 08:29:22)
> Changes in V2:
> -- correct Fixes text
> -- drop commit text
>
> Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease of debugging")
> Signed-off-by: Kuogee Hsieh <[email protected]>
> ---
> drivers/gpu/drm/msm/dp/dp_display.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)

BTW, this conflicts with commit e8a767e04dbc7b201cb17ab99dca723a3488b6d4
in msm-next. The resolution is trivial but just wanted to mention it.

2021-08-10 19:20:28

by Kuogee Hsieh

[permalink] [raw]
Subject: Re: [PATCH v2] drm/msm/dp: add drm debug logs to dp_pm_resume/suspend

On 2021-08-10 11:33, Stephen Boyd wrote:
> Quoting Kuogee Hsieh (2021-08-10 08:29:22)
>> Changes in V2:
>> -- correct Fixes text
>> -- drop commit text
>>
>> Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease
>> of debugging")
>> Signed-off-by: Kuogee Hsieh <[email protected]>
>> ---
>> drivers/gpu/drm/msm/dp/dp_display.c | 13 +++++++++++++
>> 1 file changed, 13 insertions(+)
>
> BTW, this conflicts with commit
> e8a767e04dbc7b201cb17ab99dca723a3488b6d4
> in msm-next. The resolution is trivial but just wanted to mention it.

I Just fetched msm-next and cherry-pick this patch over, no conflict
seen.
Is this conflict need to be fixed?

2021-08-10 19:25:34

by Stephen Boyd

[permalink] [raw]
Subject: Re: [PATCH v2] drm/msm/dp: add drm debug logs to dp_pm_resume/suspend

Quoting [email protected] (2021-08-10 12:18:02)
> On 2021-08-10 11:33, Stephen Boyd wrote:
> > Quoting Kuogee Hsieh (2021-08-10 08:29:22)
> >> Changes in V2:
> >> -- correct Fixes text
> >> -- drop commit text
> >>
> >> Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease
> >> of debugging")
> >> Signed-off-by: Kuogee Hsieh <[email protected]>
> >> ---
> >> drivers/gpu/drm/msm/dp/dp_display.c | 13 +++++++++++++
> >> 1 file changed, 13 insertions(+)
> >
> > BTW, this conflicts with commit
> > e8a767e04dbc7b201cb17ab99dca723a3488b6d4
> > in msm-next. The resolution is trivial but just wanted to mention it.
>
> I Just fetched msm-next and cherry-pick this patch over, no conflict
> seen.
> Is this conflict need to be fixed?
>

Oh sorry, I mean commit afc9b8b6bab8 ("drm/msm/dp: signal audio plugged
change at dp_pm_resume") which doesn't seem to be in msm-next. Maybe Rob
will resolve the conflict directly.

2021-08-10 19:36:00

by Kuogee Hsieh

[permalink] [raw]
Subject: Re: [PATCH v2] drm/msm/dp: add drm debug logs to dp_pm_resume/suspend

On 2021-08-10 12:23, Stephen Boyd wrote:
> Quoting [email protected] (2021-08-10 12:18:02)
>> On 2021-08-10 11:33, Stephen Boyd wrote:
>> > Quoting Kuogee Hsieh (2021-08-10 08:29:22)
>> >> Changes in V2:
>> >> -- correct Fixes text
>> >> -- drop commit text
>> >>
>> >> Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease
>> >> of debugging")
>> >> Signed-off-by: Kuogee Hsieh <[email protected]>
>> >> ---
>> >> drivers/gpu/drm/msm/dp/dp_display.c | 13 +++++++++++++
>> >> 1 file changed, 13 insertions(+)
>> >
>> > BTW, this conflicts with commit
>> > e8a767e04dbc7b201cb17ab99dca723a3488b6d4
>> > in msm-next. The resolution is trivial but just wanted to mention it.
>>
>> I Just fetched msm-next and cherry-pick this patch over, no conflict
>> seen.
>> Is this conflict need to be fixed?
>>
>
> Oh sorry, I mean commit afc9b8b6bab8 ("drm/msm/dp: signal audio plugged
> change at dp_pm_resume") which doesn't seem to be in msm-next. Maybe
> Rob
> will resolve the conflict directly.
Yes, I just found that commit afc9b8b6bab8 ("drm/msm/dp: signal audio
plugged
> change at dp_pm_resume") is not merged in msm-next.