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drm/i915: Add intel_atomic_get_existing_crtc_state function 

This patch Adds a function to extract intel_crtc_state from the
atomic_state, if not available it returns NULL.

v2 (from Paulo):
 - Fix white space problem detected by checkpatch.

Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161201154940.24446-7-mahesh1.kumar@intel.com
This commit is contained in:
Mahesh Kumar 2016-12-01 21:19:38 +05:30 committed by Paulo Zanoni
parent b95320bdf2
commit ccc24b39a6
1 changed files with 14 additions and 0 deletions
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14
drivers/gpu/drm/i915/intel_drv.h
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@ -1809,6 +1809,20 @@ intel_atomic_get_crtc_state(struct drm_atomic_state *state,
return to_intel_crtc_state(crtc_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 * static inline struct intel_plane_state *
intel_atomic_get_existing_plane_state(struct drm_atomic_state *state, intel_atomic_get_existing_plane_state(struct drm_atomic_state *state,
struct intel_plane *plane) struct intel_plane *plane)