diff options
author | John Stultz <john.stultz@linaro.org> | 2011-08-19 16:42:01 -0700 |
---|---|---|
committer | John Stultz <john.stultz@linaro.org> | 2011-08-19 16:42:01 -0700 |
commit | 312effedac183148411c965e20a62e73f23979f6 (patch) | |
tree | 81e466e84e7a2ebe9ee53e5d0963dc2d3c3f7356 /drivers/gpu/drm/radeon/atombios_dp.c | |
parent | d3828df964e542533765b23f9a343657c7860e17 (diff) | |
parent | dbf7603a92cd895b8c1017734bc30fd9a32fd933 (diff) |
Merge branch 'upstream/linaro-3.0' into linaro-android-3.0linux-linaro-3.0-2011.08-0-android-1
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
-rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 645b84b3d20..7ad43c6b1db 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -613,6 +613,18 @@ static bool radeon_dp_get_link_status(struct radeon_connector *radeon_connector, return true; } +bool radeon_dp_needs_link_train(struct radeon_connector *radeon_connector) +{ + u8 link_status[DP_LINK_STATUS_SIZE]; + struct radeon_connector_atom_dig *dig = radeon_connector->con_priv; + + if (!radeon_dp_get_link_status(radeon_connector, link_status)) + return false; + if (dp_channel_eq_ok(link_status, dig->dp_lane_count)) + return false; + return true; +} + struct radeon_dp_link_train_info { struct radeon_device *rdev; struct drm_encoder *encoder; |