[Intel-gfx] [PATCH v2 1/2] drm/dp: Bit definition for D3 power state that keeps AUX fully powered

Jani Nikula jani.nikula at linux.intel.com
Fri Oct 27 10:25:01 UTC 2017


On Mon, 14 Aug 2017, Harry Wentland <harry.wentland at amd.com> wrote:
> On 2017-08-11 02:10 PM, Dhinakaran Pandiyan wrote:
>> DPCD 600h - SET_POWER & SET_DP_PWR_VOLTAGE defines power state
>> 
>> 101 = Set Main-Link for local Sink device and all downstream Sink
>> devices to D3 (power-down mode), keep AUX block fully powered, ready to
>> reply within a Response Timeout period of 300us.
>> 
>> This state is useful in a MST dock + MST monitor configuration that
>> doesn't wake up from D3 state.
>> 
>> v2: Use spaces instead of tabs (Jani)
>> 
>> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
>
> Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Pushed this one to drm-misc-next, thanks for the patch and review, and
sorry for the delay.

BR,
Jani.

>
> Harry
>
>> ---
>>  include/drm/drm_dp_helper.h | 1 +
>>  1 file changed, 1 insertion(+)
>> 
>> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
>> index b17476a..47a6cdb 100644
>> --- a/include/drm/drm_dp_helper.h
>> +++ b/include/drm/drm_dp_helper.h
>> @@ -618,6 +618,7 @@
>>  # define DP_SET_POWER_D0                    0x1
>>  # define DP_SET_POWER_D3                    0x2
>>  # define DP_SET_POWER_MASK                  0x3
>> +# define DP_SET_POWER_D3_AUX_ON             0x5
>>  
>>  #define DP_EDP_DPCD_REV			    0x700    /* eDP 1.2 */
>>  # define DP_EDP_11			    0x00
>> 
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-- 
Jani Nikula, Intel Open Source Technology Center


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