From ccc24b39a6fa3b0ba6b4310c10d7e0288ec8db10 Mon Sep 17 00:00:00 2001 From: Mahesh Kumar Date: Thu, 1 Dec 2016 21:19:38 +0530 Subject: [PATCH] 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 Reviewed-by: Paulo Zanoni Signed-off-by: Paulo Zanoni Link: http://patchwork.freedesktop.org/patch/msgid/20161201154940.24446-7-mahesh1.kumar@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 fd77a3ba857b..8f4ddca0f521 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1809,6 +1809,20 @@ 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)