3.13.11.6 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Alex Deucher <[email protected]>

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 <[email protected]>
[ kamal: backport to 3.13-stable (context) ]
Signed-off-by: Kamal Mostafa <[email protected]>
---
 drivers/gpu/drm/radeon/atombios_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c 
b/drivers/gpu/drm/radeon/atombios_dp.c
index a1a0350..514a623 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -123,7 +123,7 @@ 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 */
-- 
1.9.1

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