[PATCH 03/18] drm/i915: Add atomic get property interface for CRTC

[Shashank Sharma <shashank.sharma@intel.com>]

From: Kausal Malladi <kausalmalladi@gmail.com>

This patch adds atomic get property interface for Intel CRTC. This
interface will be used for get operation on any non-core DRM properties.

Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Kausal Malladi <kausalmalladi@gmail.com>
---
 drivers/gpu/drm/i915/intel_atomic.c  | 8 ++++++++
 drivers/gpu/drm/i915/intel_display.c | 1 +
 drivers/gpu/drm/i915/intel_drv.h     | 4 ++++
 3 files changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 922fecf..8d04ee8 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -327,3 +327,11 @@ int intel_crtc_atomic_set_property(struct drm_crtc *crtc,
 	DRM_DEBUG_KMS("Unknown crtc property '%s'\n", property->name);
 	return -EINVAL;
 }
+
+int intel_crtc_atomic_get_property(struct drm_crtc *crtc,
+				   const struct drm_crtc_state *state,
+				   struct drm_property *property,
+				   uint64_t *val)
+{
+	return 0;
+}
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 1fbf0ff..1412e21 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13353,6 +13353,7 @@ static const struct drm_crtc_funcs intel_crtc_funcs = {
 	.page_flip = intel_crtc_page_flip,
 	.set_property = drm_atomic_helper_crtc_set_property,
 	.atomic_set_property = intel_crtc_atomic_set_property,
+	.atomic_get_property = intel_crtc_atomic_get_property,
 	.atomic_duplicate_state = intel_crtc_duplicate_state,
 	.atomic_destroy_state = intel_crtc_destroy_state,
 };
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index c0ae529..b3dc138 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1426,6 +1426,10 @@ int intel_crtc_atomic_set_property(struct drm_crtc *plane,
 				   struct drm_crtc_state *state,
 				   struct drm_property *property,
 				   uint64_t val);
+int intel_crtc_atomic_get_property(struct drm_crtc *plane,
+				   const struct drm_crtc_state *state,
+				   struct drm_property *property,
+				   uint64_t *val);
 
 /* intel_atomic_plane.c */
 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
-- 
1.9.1

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