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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>
This commit is contained in:
Harry Wentland 2017-01-27 10:55:20 -05:00 committed by Alex Deucher
parent 7df498fa4c
commit 664a2ed115
1 changed files with 39 additions and 1 deletions
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40
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c
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@ -1246,6 +1246,43 @@ 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 = {
.reset = amdgpu_dm_connector_funcs_reset,
.detect = amdgpu_dm_connector_detect,
@ -1253,7 +1290,8 @@ 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)