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authorAlex Deucher <alexdeucher@gmail.com>2009-12-05 00:56:37 +0300
committerDave Airlie <airlied@redhat.com>2009-12-08 03:48:22 +0300
commitd4877cf2293f5463f531769fd12300cb3417c778 (patch)
treeee9533aaf9fac0bbec859cf5d888fa73a71875bd /drivers/gpu/drm/radeon/radeon_connectors.c
parent429770b3e39999c4d025fbcb9959502adc3989d8 (diff)
downloadlinux-d4877cf2293f5463f531769fd12300cb3417c778.tar.xz
drm/radeon/kms: enable hpd support
This enabled interrupt driven hpd support for all radeon chips. Assuming the hpd pin is wired up correctly, the driver will generate uevents on digital monitor connect and disconnect and retrain DP monitors automatically. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 7328d1528a85..cfa2ebb259fe 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -40,6 +40,26 @@ radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
struct drm_encoder *encoder,
bool connected);
+void radeon_connector_hotplug(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+
+ if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
+ radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
+
+ if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+ if (radeon_dp_getsinktype(radeon_connector) == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
+ if (radeon_dp_needs_link_train(radeon_connector)) {
+ if (connector->encoder)
+ dp_link_train(connector->encoder, connector);
+ }
+ }
+ }
+
+}
+
static void radeon_property_change_mode(struct drm_encoder *encoder)
{
struct drm_crtc *crtc = encoder->crtc;