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From b72421ff02e276181701e07cac145b1ca724531a Mon Sep 17 00:00:00 2001
From: Harry Wentland <harry.wentland@amd.com>
Date: Fri, 27 Jan 2017 10:55:20 -0500
Subject: [PATCH 0331/4131] drm/amd/display: Fallback on legacy properties in
atomic_get_properties
We still rely on legacy properties. Fallback on legacy properties until
we get to pull these into some atomic state.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
.../drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 40 +++++++++++++++++++++-
1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
index 63ad629..28bd6be 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
@@ -1410,6 +1410,43 @@ struct drm_connector_state *amdgpu_dm_connector_atomic_duplicate_state(
return NULL;
}
+
+/**
+ * amdgpu_dm_atomic_get_property - fetch connector property value
+ * @connector: connector 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 connector property.
+ */
+int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
+ const struct drm_connector_state *state,
+ struct drm_property *property,
+ uint64_t *val)
+{
+ int i;
+
+ /*
+ * TODO: Get properties from atomic state or objs. Until it's ready,
+ * continue to look up all property values in the DRM's shadow copy
+ * in obj->properties->values[].
+ *
+ * When the crtc/connector state work matures, this function should
+ * be updated to read the values out of the state structure instead.
+ */
+ for (i = 0; i < connector->base.properties->count; i++) {
+ if (connector->base.properties->properties[i] == property) {
+ *val = connector->base.properties->values[i];
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
.dpms = drm_atomic_helper_connector_dpms,
.reset = amdgpu_dm_connector_funcs_reset,
@@ -1419,7 +1456,8 @@ static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
.destroy = amdgpu_dm_connector_destroy,
.atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
- .atomic_set_property = amdgpu_dm_connector_atomic_set_property
+ .atomic_set_property = amdgpu_dm_connector_atomic_set_property,
+ .atomic_get_property = amdgpu_dm_connector_atomic_get_property,
};
static struct drm_encoder *best_encoder(struct drm_connector *connector)
--
2.7.4
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