From d4877cf2293f5463f531769fd12300cb3417c778 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 4 Dec 2009 16:56:37 -0500 Subject: 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 Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_connectors.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c') 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; -- cgit v1.2.3