Re: [PATCH 07/14] drm/i915: Check for CPT and not !IBX in ironlake_disable_pch_transcoder()

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On 10/29/2015 12:25 PM, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> ironlake_enaable_pch_transcoder() checks for CPT to see if it should
> enable the timing override chicken bit, but
> ironlake_disable_pch_transcoder() checks for !IBX to see if it should
> clear the same bit. Change ironlake_disable_pch_transcoder() to check
> for CPT as well to keep the two sides consistent.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index e820147..0d87a4e 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2068,7 +2068,7 @@ static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
>  	if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
>  		DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
>  
> -	if (!HAS_PCH_IBX(dev)) {
> +	if (HAS_PCH_CPT(dev)) {
>  		/* Workaround: Clear the timing override chicken bit again. */
>  		reg = TRANS_CHICKEN2(pipe);
>  		val = I915_READ(reg);
> 

Reviewed-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
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