[PATCH] drm/i915/xe3lpd: Map POWER_DOMAIN_AUDIO_PLAYBACK to DC_off

[Kai Vehmanen]

Hi,

On Thu, 27 Feb 2025, Gustavo Sousa wrote:

> In Xe3_LPD, display audio has the core audio logic located in PG0 and
> per-transcoder logic in the same power well that provides power for the
> transcoder [1].
[...]
> Since intel_audio_component_get_power() uses
> POWER_DOMAIN_AUDIO_PLAYBACK, make sure to map that power domain to
> DC_off power well, so that we disable dynamic DC states (which includes
> DC6) while the audio driver needs display audio power.
[...]
> +++ b/drivers/gpu/drm/i915/display/intel_display_power_map.c
> @@ -1694,6 +1694,7 @@ I915_DECL_PW_DOMAINS(xe3lpd_pwdoms_dc_off,
>  	XE3LPD_PW_C_POWER_DOMAINS,
>  	XE3LPD_PW_D_POWER_DOMAINS,
>  	POWER_DOMAIN_AUDIO_MMIO,
> +	POWER_DOMAIN_AUDIO_PLAYBACK,
>  	POWER_DOMAIN_INIT);

ack, this looks good and covers audio expectations for 
drm_audio_component.h usage:

Reviewed-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>

Br, Kai