From 10f81c194a78915f47aa5a17756b6492be133251 Mon Sep 17 00:00:00 2001 From: Ander Conselvan de Oliveira Date: Fri, 20 Mar 2015 16:18:01 +0200 Subject: [PATCH] drm/i915: Add intel_atomic_get_crtc_state() helper function The pattern of getting the crtc state with drm_atomic_get_crtc_state() and then converting it to intel_crtc_state will repeat quite often in the following patches, so add a helper function to save some typing. v2: Fix upcasting so that crtc_state base field could be moved. (Daniel) Signed-off-by: Ander Conselvan de Oliveira Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_drv.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 811a1db..267bcfc 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -35,6 +35,7 @@ #include #include #include +#include #define DIV_ROUND_CLOSEST_ULL(ll, d) \ ({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; }) @@ -562,6 +563,7 @@ struct cxsr_latency { }; #define to_intel_crtc(x) container_of(x, struct intel_crtc, base) +#define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base) #define to_intel_connector(x) container_of(x, struct intel_connector, base) #define to_intel_encoder(x) container_of(x, struct intel_encoder, base) #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base) @@ -1303,6 +1305,17 @@ int intel_connector_atomic_get_property(struct drm_connector *connector, struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc); void intel_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state); +static inline struct intel_crtc_state * +intel_atomic_get_crtc_state(struct drm_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_crtc_state *crtc_state; + crtc_state = drm_atomic_get_crtc_state(state, &crtc->base); + if (IS_ERR(crtc_state)) + return ERR_PTR(PTR_ERR(crtc_state)); + + return to_intel_crtc_state(crtc_state); +} /* intel_atomic_plane.c */ struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane); -- 2.7.4