[Intel-gfx] [PATCH v5 6/8] drm/i915: Add intel_atomic_get_existing_crtc_state function

[Paulo Zanoni]

Em Sex, 2016-11-18 às 20:39 +0530, Mahesh Kumar escreveu:
> This patch Adds a function to extract intel_crtc_state from the
> atomic_state, if not available it returns NULL.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>


> Signed-off-by: Mahesh Kumar <mahesh1.kumar at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_drv.h | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index ad542a2..db75773 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1794,6 +1794,20 @@ intel_atomic_get_crtc_state(struct
> drm_atomic_state *state,
>  	return to_intel_crtc_state(crtc_state);
>  }
>  
> +static inline struct intel_crtc_state *
> +intel_atomic_get_existing_crtc_state(struct drm_atomic_state *state,
> +				      struct intel_crtc *crtc)
> +{
> +	struct drm_crtc_state *crtc_state;
> +
> +	crtc_state = drm_atomic_get_existing_crtc_state(state,
> &crtc->base);
> +
> +	if (crtc_state)
> +		return to_intel_crtc_state(crtc_state);
> +	else
> +		return NULL;
> +}
> +
>  static inline struct intel_plane_state *
>  intel_atomic_get_existing_plane_state(struct drm_atomic_state
> *state,
>  				      struct intel_plane *plane)