diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-07-03 11:17:55 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-08-06 18:07:37 +0100 |
| commit | f5040bb44d62a4754f98cd139ed2712495fa3a3f (patch) | |
| tree | 21d07e19d6866f1daabe4eb5923c6f99a18f05bb | |
| parent | 3b9185076b63d1e24cd43209a7a9c26e78b659bf (diff) | |
drm/radeon/dp: return -EIO for flags not zero case
commit f6be5e64500abbba44e191e1ca0f3366c7d0291b upstream.
If there are error flags in the aux transaction return
-EIO rather than -EBUSY. -EIO restarts the whole transaction
while -EBUSY jus retries. Fixes problematic aux transfers.
Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=80684
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[bwh: Backported to 3.2: error code is returned directly here]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 3254d51e55c9..e8a3c3122050 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -89,7 +89,7 @@ static int radeon_process_aux_ch(struct radeon_i2c_chan *chan, /* flags not zero */ if (args.v1.ucReplyStatus == 2) { DRM_DEBUG_KMS("dp_aux_ch flags not zero\n"); - return -EBUSY; + return -EIO; } /* error */ |