Re: [PATCH] drm/i915/dsc: Remove redundant checks in DSC disable

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Hi, 
> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Vandita
> Kulkarni
> Sent: torstai 3. kesäkuuta 2021 9.54
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Nikula, Jani <jani.nikula@xxxxxxxxx>
> Subject:  [PATCH] drm/i915/dsc: Remove redundant checks in DSC disable
> 
> There can be a chance that pre os has enabled DSC and driver's compute config
> would not need dsc to be enabled, in such case if we check on compute config's
> compression state to disable, we might end up in state mismatch.

I assume this fixes real gitlab issue too? 

> 
> Signed-off-by: Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_vdsc.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c
> b/drivers/gpu/drm/i915/display/intel_vdsc.c
> index 19cd9531c115..b05a96011d93 100644
> --- a/drivers/gpu/drm/i915/display/intel_vdsc.c
> +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c
> @@ -1161,10 +1161,6 @@ void intel_dsc_disable(const struct intel_crtc_state
> *old_crtc_state)
>  	struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc);
>  	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> 
> -	if (!(old_crtc_state->dsc.compression_enable &&
> -	      old_crtc_state->bigjoiner))
> -		return;
> -
>  	intel_de_write(dev_priv, dss_ctl1_reg(old_crtc_state), 0);
>  	intel_de_write(dev_priv, dss_ctl2_reg(old_crtc_state), 0);  }
> --
> 2.21.0.5.gaeb582a
> 
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