[Intel-gfx] [PATCH 1/9] drm/i915/dsb: Replace HAS_DSB check with dsb->cmd_buf check

[Souza, Jose]

On Wed, 2020-01-29 at 20:20 +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> We may want to not use the DSB even if the platform has one.
> So replace the HAS_DSB check in the _put() with a cmd_buf check
> that will work in either case.

Reviewed-by: José Roberto de Souza <jose.souza at intel.com>

> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dsb.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c
> b/drivers/gpu/drm/i915/display/intel_dsb.c
> index 9dd18144a664..12776f09f227 100644
> --- a/drivers/gpu/drm/i915/display/intel_dsb.c
> +++ b/drivers/gpu/drm/i915/display/intel_dsb.c
> @@ -160,9 +160,8 @@ intel_dsb_get(struct intel_crtc *crtc)
>  void intel_dsb_put(struct intel_dsb *dsb)
>  {
>  	struct intel_crtc *crtc = container_of(dsb, typeof(*crtc),
> dsb);
> -	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  
> -	if (!HAS_DSB(i915))
> +	if (!dsb->cmd_buf)
>  		return;
>  
>  	if (WARN_ON(dsb->refcount == 0))