Re: [PATCH 07/13] drm/i915: Clear the dpll_hw_state when disabling a pipe

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On Fri, 25 Mar 2022, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> Clear the dpll_hw_state when we're about disable the pipe.
> Previously it looks like we just left the old junk in there.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/display/intel_dpll.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c
> index 494a343850e7..7960f1d52eaa 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll.c
> +++ b/drivers/gpu/drm/i915/display/intel_dpll.c
> @@ -1406,12 +1406,12 @@ int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state,
>  	if (drm_WARN_ON(&i915->drm, crtc_state->shared_dpll))
>  		return 0;
>  
> -	if (!crtc_state->hw.enable)
> -		return 0;
> -
>  	memset(&crtc_state->dpll_hw_state, 0,
>  	       sizeof(crtc_state->dpll_hw_state));
>  
> +	if (!crtc_state->hw.enable)
> +		return 0;
> +
>  	return i915->dpll_funcs->crtc_compute_clock(state, crtc);
>  }

-- 
Jani Nikula, Intel Open Source Graphics Center




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