[PATCH v2] drm/amd/display: Update DCN302 SR Exit Latency

Aurabindo Pillai aurabindo.pillai at amd.com
Thu Apr 8 18:01:44 UTC 2021


Thank you Harry.

On 2021-04-08 1:46 p.m., Harry Wentland wrote:
> On 2021-04-08 1:10 p.m., Aurabindo Pillai wrote:
>> From: Joshua Aberback <joshua.aberback at amd.com>
>>
>> [Why&How]
>> Update SR Exit Latency to fix screen flickering caused due to OTG
>> underflow. This is the recommended value given by the hardware IP team.
>>
>> Signed-off-by: Joshua Aberback <joshua.aberback at amd.com>
>> Acked-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
> 
> Reviewed-by: Harry Wentland <harry.wentland at amd.com>
> 
> Harry
> 
>> ---
>>   drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c 
>> b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
>> index a928c1d9a557..fc2dea243d1b 100644
>> --- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
>> +++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
>> @@ -164,7 +164,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_02_soc = {
>>           .min_dcfclk = 500.0, /* TODO: set this to actual min DCFCLK */
>>           .num_states = 1,
>> -        .sr_exit_time_us = 12,
>> +        .sr_exit_time_us = 15.5,
>>           .sr_enter_plus_exit_time_us = 20,
>>           .urgent_latency_us = 4.0,
>>           .urgent_latency_pixel_data_only_us = 4.0,
>>
> 

-- 
Regards,
Aurabindo Pillai


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