[PATCH v3 1/7] drm/dp_helper: Add helper to check DSC support with given o/p format

[Maarten Lankhorst]

ack

On 2023-03-20 09:59, Jani Nikula wrote:
> Thomas, Maxime, Maarten, ack for merging this one via drm-intel?
>
> BR,
> Jani.
>
>
>
> On Thu, 09 Mar 2023, Suraj Kandpal <suraj.kandpal at intel.com> wrote:
>> From: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
>>
>> Add helper to check if the DP sink supports DSC with the given
>> o/p format.
>>
>> v2: Add documentation for the helper. (Uma Shankar)
>>
>> v3: /** instead of  /* (Uma Shankar)
>>
>> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
>> Reviewed-by: Uma Shankar <uma.shankar at intel.com>
>> ---
>>   include/drm/display/drm_dp_helper.h | 13 +++++++++++++
>>   1 file changed, 13 insertions(+)
>>
>> diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
>> index ab55453f2d2c..533d3ee7fe05 100644
>> --- a/include/drm/display/drm_dp_helper.h
>> +++ b/include/drm/display/drm_dp_helper.h
>> @@ -194,6 +194,19 @@ drm_dp_dsc_sink_max_slice_width(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
>>   		DP_DSC_SLICE_WIDTH_MULTIPLIER;
>>   }
>>   
>> +/**
>> + * drm_dp_dsc_sink_supports_format() - check if sink supports DSC with given output format
>> + * @dsc_dpcd : DSC-capability DPCDs of the sink
>> + * @output_format: output_format which is to be checked
>> + *
>> + * Returns true if the sink supports DSC with the given output_format, false otherwise.
>> + */
>> +static inline bool
>> +drm_dp_dsc_sink_supports_format(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE], u8 output_format)
>> +{
>> +	return dsc_dpcd[DP_DSC_DEC_COLOR_FORMAT_CAP - DP_DSC_SUPPORT] & output_format;
>> +}
>> +
>>   /* Forward Error Correction Support on DP 1.4 */
>>   static inline bool
>>   drm_dp_sink_supports_fec(const u8 fec_capable)