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| author | Dave Airlie <airlied@redhat.com> | 2010-01-14 11:42:17 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-01-14 11:51:56 +1000 |
| commit | 7a15cbd40108a670baae71cbd3cec62b65891fa6 (patch) | |
| tree | cafb93efc353d4be301ee039b8eca1ca25494cb2 /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | 9270eb1b496cb002d75f49ef82c9ef4cbd22a5a0 (diff) | |
| download | linux-stable-7a15cbd40108a670baae71cbd3cec62b65891fa6.tar.gz linux-stable-7a15cbd40108a670baae71cbd3cec62b65891fa6.tar.bz2 linux-stable-7a15cbd40108a670baae71cbd3cec62b65891fa6.zip | |
drm/radeon/kms: fix displayport->dvi connector DDC.
It appears that attempting AUXCH DDC breaks the subsequent attempt
to do DDC over the i2c lines, so use the sink type to determine
if we should be doing AUXCH or i2c DDC.
This fixes my DVI monitor plugged into DP->DVI convertor.
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 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 0ec491ead2ff..47ceae9cdc43 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -357,7 +357,8 @@ int radeon_ddc_get_modes(struct radeon_connector *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; - if (dig->dp_i2c_bus) + if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT || + dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus) radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter); } if (!radeon_connector->ddc_bus) |