On Thu, Apr 08, 2021 at 02:42:05PM -0700, José Roberto de Souza wrote:
> PSR2 is defeatured for RKL and ADL-S, no important power impact as
> those are desktop CPUs and PSR2 was not even enabled by default yet
> in platforms without PSR2 HW tracking.
>
> HSDES: 14011750631
> HSDES: 14011741325
> BSpec: 53273
> Cc: Caz Yokoyama <Caz.Yokoyama@xxxxxxxxx>
> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@xxxxxxxxx>
> Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_psr.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
> index 32d3d56259c2..2627d0b558f3 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -739,6 +739,12 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
> return false;
> }
>
> + /* Wa_16011181250 */
> + if (IS_ROCKETLAKE(dev_priv) || IS_ALDERLAKE_S(dev_priv)) {
> + drm_dbg_kms(&dev_priv->drm, "PSR2 is defeatured for this platform\n");
> + return false;
> + }
> +
> if (!transcoder_has_psr2(dev_priv, crtc_state->cpu_transcoder)) {
> drm_dbg_kms(&dev_priv->drm,
> "PSR2 not supported in transcoder %s\n",
> --
> 2.31.1
>
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