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drm/radeon/kms: make sure eDP panel is on for modesetting 

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-05-20 04:34:20 -04:00 committed by Dave Airlie
parent 2dafb74d63
commit 4e633939fe
1 changed files with 7 additions and 1 deletions
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8
drivers/gpu/drm/radeon/radeon_encoders.c
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@ -1936,11 +1936,17 @@ static void radeon_atom_encoder_prepare(struct drm_encoder *encoder)
radeon_atom_output_lock(encoder, true);
radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
/* select the clock/data port if it uses a router */
if (connector) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
/* select the clock/data port if it uses a router */
if (radeon_connector->router.cd_valid)
radeon_router_select_cd_port(radeon_connector);
/* turn eDP panel on for mode set */
if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_ON);
}
/* this is needed for the pll/ss setup to work correctly in some cases */