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authorMatt Roper <matthew.d.roper@intel.com>2015-01-22 03:35:43 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-01-27 11:56:15 +0300
commita98b3431afcbc66986fcf375fa168df1d9d28bc0 (patch)
tree5469ea7a01263fb592a2cd8917b705bef912ac4d /drivers/gpu/drm/i915/intel_atomic_plane.c
parent65a3fea0a6f02950f22f983755ce8145b73a007d (diff)
downloadlinux-a98b3431afcbc66986fcf375fa168df1d9d28bc0.tar.xz
drm/i915: Add .atomic_{get, set}_property() entrypoints to planes
When we flip on the DRIVER_ATOMIC bit, the DRM core will start calling this entrypoint to set and lookup driver-specific plane property values, rather than maintaining a shadow copy in object->properties. Note that although we add these functions to the plane vtable, they will not yet be called. Future patches that switch our .set_property() handler and/or enable full atomic functionality are required before these code paths will be executed. Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_atomic_plane.c')
-rw-r--r--drivers/gpu/drm/i915/intel_atomic_plane.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index d9d430604c07..4a3914f1cdee 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -177,3 +177,61 @@ const struct drm_plane_helper_funcs intel_plane_helper_funcs = {
.atomic_update = intel_plane_atomic_update,
};
+/**
+ * intel_plane_atomic_get_property - fetch plane property value
+ * @plane: plane to fetch property for
+ * @state: state containing the property value
+ * @property: property to look up
+ * @val: pointer to write property value into
+ *
+ * The DRM core does not store shadow copies of properties for
+ * atomic-capable drivers. This entrypoint is used to fetch
+ * the current value of a driver-specific plane property.
+ */
+int
+intel_plane_atomic_get_property(struct drm_plane *plane,
+ const struct drm_plane_state *state,
+ struct drm_property *property,
+ uint64_t *val)
+{
+ struct drm_mode_config *config = &plane->dev->mode_config;
+
+ if (property == config->rotation_property) {
+ *val = state->rotation;
+ } else {
+ DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * intel_plane_atomic_set_property - set plane property value
+ * @plane: plane to set property for
+ * @state: state to update property value in
+ * @property: property to set
+ * @val: value to set property to
+ *
+ * Writes the specified property value for a plane into the provided atomic
+ * state object.
+ *
+ * Returns 0 on success, -EINVAL on unrecognized properties
+ */
+int
+intel_plane_atomic_set_property(struct drm_plane *plane,
+ struct drm_plane_state *state,
+ struct drm_property *property,
+ uint64_t val)
+{
+ struct drm_mode_config *config = &plane->dev->mode_config;
+
+ if (property == config->rotation_property) {
+ state->rotation = val;
+ } else {
+ DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name);
+ return -EINVAL;
+ }
+
+ return 0;
+}