Connectors with a shared ddc line can be connected to different encoders.

Reported by Pasi Kärkkäinen pasik@iki.fi on dri-devel

Signed-off-by: Alex Deucher alexdeucher@gmail.com Cc: stable@kernel.org --- drivers/gpu/drm/radeon/radeon_connectors.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 0c7ccc6..f58f8bd 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -785,7 +785,9 @@ static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connect if (connector == list_connector) continue; list_radeon_connector = to_radeon_connector(list_connector); - if (radeon_connector->devices == list_radeon_connector->devices) { + if (list_radeon_connector->shared_ddc && + (list_radeon_connector->ddc_bus->rec.i2c_id == + radeon_connector->ddc_bus->rec.i2c_id)) { if (drm_detect_hdmi_monitor(radeon_connector->edid)) { if (connector->connector_type == DRM_MODE_CONNECTOR_DVID) { kfree(radeon_connector->edid);