Used for dp1.2 support and for dp bridges.
Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
---
drivers/gpu/drm/radeon/radeon_connectors.c | 71 ++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/radeon_encoders.c | 23 +++++++++
drivers/gpu/drm/radeon/radeon_mode.h | 5 ++
3 files changed, 99 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c
b/drivers/gpu/drm/radeon/radeon_connectors.c
index a7bdcc7..9f3c650 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1068,6 +1068,77 @@ static int radeon_dp_get_modes(struct drm_connector
*connector)
return ret;
}
+bool radeon_connector_encoder_is_dp_bridge(struct drm_connector *connector)
+{
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+ struct radeon_encoder *radeon_encoder;
+ int i;
+ bool found = false;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == 0)
+ break;
+
+ obj = drm_mode_object_find(connector->dev,
connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
+ if (!obj)
+ continue;
+
+ encoder = obj_to_encoder(obj);
+ radeon_encoder = to_radeon_encoder(encoder);
+
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_TRAVIS:
+ case ENCODER_OBJECT_ID_NUTMEG:
+ found = true;
+ break;
+ default:
+ break;
+ }
+ }
+
+ return found;
+}
+
+bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector)
+{
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+ struct radeon_encoder *radeon_encoder;
+ int i;
+ bool found = false;
+
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+ if (connector->encoder_ids[i] == 0)
+ break;
+
+ obj = drm_mode_object_find(connector->dev,
connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
+ if (!obj)
+ continue;
+
+ encoder = obj_to_encoder(obj);
+ radeon_encoder = to_radeon_encoder(encoder);
+ if (radeon_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2)
+ found = true;
+ }
+
+ return found;
+}
+
+bool radeon_connector_is_dp12_capable(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct radeon_device *rdev = dev->dev_private;
+
+ if (ASIC_IS_DCE5(rdev) &&
+ (rdev->clock.dp_extclk >= 53900) &&
+ radeon_connector_encoder_is_hbr2(connector)) {
+ return true;
+ }
+
+ return false;
+}
+
static enum drm_connector_status
radeon_dp_detect(struct drm_connector *connector, bool force)
{
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c
b/drivers/gpu/drm/radeon/radeon_encoders.c
index fd0087f..1c064e7 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -250,6 +250,25 @@ struct drm_encoder
*radeon_atom_get_external_encoder(struct drm_encoder *encoder
return NULL;
}
+bool radeon_encoder_is_dp_bridge(struct drm_encoder *encoder)
+{
+ struct drm_encoder *other_encoder =
radeon_atom_get_external_encoder(encoder);
+
+ if (other_encoder) {
+ struct radeon_encoder *radeon_encoder =
to_radeon_encoder(other_encoder);
+
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_TRAVIS:
+ case ENCODER_OBJECT_ID_NUTMEG:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ return false;
+}
+
void radeon_panel_mode_fixup(struct drm_encoder *encoder,
struct drm_display_mode *adjusted_mode)
{
@@ -621,6 +640,10 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
struct radeon_connector *radeon_connector;
struct radeon_connector_atom_dig *dig_connector;
+ /* dp bridges are always DP */
+ if (radeon_encoder_is_dp_bridge(encoder))
+ return ATOM_ENCODER_MODE_DP;
+
connector = radeon_get_connector_for_encoder(encoder);
if (!connector) {
switch (radeon_encoder->encoder_id) {
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
b/drivers/gpu/drm/radeon/radeon_mode.h
index e4d3237..7a3cfa0 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -464,6 +464,11 @@ radeon_atombios_get_tv_info(struct radeon_device *rdev);
extern struct drm_connector *
radeon_get_connector_for_encoder(struct drm_encoder *encoder);
+extern bool radeon_encoder_is_dp_bridge(struct drm_encoder *encoder);
+extern bool radeon_connector_encoder_is_dp_bridge(struct drm_connector
*connector);
+extern bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector);
+extern bool radeon_connector_is_dp12_capable(struct drm_connector *connector);
+
extern void radeon_connector_hotplug(struct drm_connector *connector);
extern bool radeon_dp_needs_link_train(struct radeon_connector
*radeon_connector);
extern int radeon_dp_mode_valid_helper(struct radeon_connector
*radeon_connector,
--
1.7.1.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel
