On Tue, Jan 08, 2019 at 01:07:28PM +0530, Uma Shankar wrote:
> Check if de-gamma/gamma lut callback is assigned before
> calling the same.
> 
> Signed-off-by: Uma Shankar <[email protected]>

Is it possible for this test to fail?  intel_color_init() seems to
always assign a value (even for platforms that don't actually support
color management).

It seem like if you're going to make this change, you'd also want to
update intel_color_init() to only set the load_luts for platforms where
we actually have color management?


Matt

> ---
>  drivers/gpu/drm/i915/intel_color.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_color.c 
> b/drivers/gpu/drm/i915/intel_color.c
> index 37fd9dd..4ff4db6 100644
> --- a/drivers/gpu/drm/i915/intel_color.c
> +++ b/drivers/gpu/drm/i915/intel_color.c
> @@ -602,7 +602,8 @@ void intel_color_load_luts(struct intel_crtc_state 
> *crtc_state)
>       struct drm_device *dev = crtc_state->base.crtc->dev;
>       struct drm_i915_private *dev_priv = to_i915(dev);
>  
> -     dev_priv->display.load_luts(crtc_state);
> +     if (dev_priv->display.load_luts)
> +             dev_priv->display.load_luts(crtc_state);
>  }
>  
>  int intel_color_check(struct intel_crtc_state *crtc_state)
> -- 
> 1.9.1
> 

-- 
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
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