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author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-08-17 22:47:15 -0400 |
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committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-08-17 22:47:15 -0400 |
commit | dbf7603a92cd895b8c1017734bc30fd9a32fd933 (patch) | |
tree | 7e0e8c35d5db964ee43494a721dee3c486e4e458 /drivers/gpu/drm/radeon/atombios_dp.c | |
parent | 044c31fdf80ed9d8e6bfb33913d085c3efc6febe (diff) | |
parent | d31bf2883542cd3414674238f94123bd1d9c0b9f (diff) |
Merge commit 'v3.0.3' into linaro-3.0linux-linaro-3.0-2011.08-0
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; |