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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-08-05 21:21:18 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-08-10 10:46:50 +1000 |
| commit | 26b5bc986423cf3887e09188cb662ed651c5374d (patch) | |
| tree | 568934e975f31029460b8e90f22580bdb84b19ec /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | 179e8078a768be8c18539bebe44dd94447142ccf (diff) | |
| download | kernel_samsung_smdk4412-26b5bc986423cf3887e09188cb662ed651c5374d.zip kernel_samsung_smdk4412-26b5bc986423cf3887e09188cb662ed651c5374d.tar.gz kernel_samsung_smdk4412-26b5bc986423cf3887e09188cb662ed651c5374d.tar.bz2 | |
drm/radeon/kms: add support for router objects
router objects are found on systems that use a mux to control
ddc line to connector routing or to control the actual clock and data
routing from the chip to the connectors. This patch implements ddc line
routing.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 52ac08e..d49a148 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -319,6 +319,10 @@ static void radeon_print_display_setup(struct drm_device *dev) radeon_connector->ddc_bus->rec.en_data_reg, radeon_connector->ddc_bus->rec.y_clk_reg, radeon_connector->ddc_bus->rec.y_data_reg); + if (radeon_connector->router_bus) + DRM_INFO(" DDC Router 0x%x/0x%x\n", + radeon_connector->router.mux_control_pin, + radeon_connector->router.mux_state); } else { if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || connector->connector_type == DRM_MODE_CONNECTOR_DVII || @@ -395,6 +399,10 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector) struct radeon_device *rdev = dev->dev_private; int ret = 0; + /* on hw with routers, select right port */ + if (radeon_connector->router.valid) + radeon_router_select_port(radeon_connector); + if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) || (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) { struct radeon_connector_atom_dig *dig = radeon_connector->con_priv; @@ -425,6 +433,10 @@ static int radeon_ddc_dump(struct drm_connector *connector) struct radeon_connector *radeon_connector = to_radeon_connector(connector); int ret = 0; + /* on hw with routers, select right port */ + if (radeon_connector->router.valid) + radeon_router_select_port(radeon_connector); + if (!radeon_connector->ddc_bus) return -1; edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter); |