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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0331-drm-amd-display-Fallback-on-legacy-properties-in-ato.patch76
1 files changed, 76 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0331-drm-amd-display-Fallback-on-legacy-properties-in-ato.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0331-drm-amd-display-Fallback-on-legacy-properties-in-ato.patch
new file mode 100644
index 00000000..de637a54
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0331-drm-amd-display-Fallback-on-legacy-properties-in-ato.patch
@@ -0,0 +1,76 @@
+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
+