[Intel-gfx] [PATCH] drm/i915/display: Disable PSR2 sel fetch in TGL pre-production

[Mun, Gwan-gyeong]

Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
On Wed, 2021-05-05 at 14:38 -0700, José Roberto de Souza wrote:
> The implementation of two workarounds are missing causing failures
> in CI with pre-production HW.
> 
> Cc: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
> Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_psr.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index e3c30dcadcd1..406ba9a712a8 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -720,6 +720,13 @@ static bool
> intel_psr2_sel_fetch_config_valid(struct intel_dp *intel_dp,
>                 }
>         }
>  
> +       /* Wa_14010254185 Wa_14010103792 */
> +       if (IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B1)) {
> +               drm_dbg_kms(&dev_priv->drm,
> +                           "PSR2 sel fetch not enabled, missing the
> implementation of WAs\n");
> +               return false;
> +       }
> +
>         return crtc_state->enable_psr2_sel_fetch = true;
>  }
>