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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-11-08 16:08:29 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-11-09 13:43:32 +1000 |
| commit | fb939dfcf2a3a70357000617799925b6a11f9348 (patch) | |
| tree | 7b307b6edbd6e6c6f7b8a93a9fc95e1d87abcc8f /drivers/gpu/drm/radeon/radeon_encoders.c | |
| parent | dccb2a952b1f0b51978fcb3f9899c7f46ffd4b28 (diff) | |
| download | lwn-fb939dfcf2a3a70357000617799925b6a11f9348.tar.gz lwn-fb939dfcf2a3a70357000617799925b6a11f9348.zip | |
drm/radeon/kms: add support for clock/data path routers
This is a follow on to:
26b5bc986423cf3887e09188cb662ed651c5374d
(drm/radeon/kms: add support for router objects)
That patch added support for systems that use a mux to control
the ddc line routing between the connectors. This patch adds
support for systems that use a mux to control the encoder
clock and data path routing to the connectors.
Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=31339
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_encoders.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_encoders.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index b862be61c398..f678257c42e6 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -1520,6 +1520,7 @@ radeon_atom_dac_detect(struct drm_encoder *encoder, struct drm_connector *connec static void radeon_atom_encoder_prepare(struct drm_encoder *encoder) { struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); if (radeon_encoder->active_device & (ATOM_DEVICE_DFP_SUPPORT | ATOM_DEVICE_LCD_SUPPORT)) { @@ -1531,6 +1532,13 @@ 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); + if (radeon_connector->router.cd_valid) + radeon_router_select_cd_port(radeon_connector); + } + /* this is needed for the pll/ss setup to work correctly in some cases */ atombios_set_encoder_crtc_source(encoder); } |