Commit f6be5e64 authored Jul 03, 2014 by Alex Deucher

drm/radeon/dp: return -EIO for flags not zero case

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>
Cc: stable@vger.kernel.org

parent 2db38e06

drivers/gpu/drm/radeon/atombios_dp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -127,7 +127,7 @@ 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");
		r = -EBUSY;
		r = -EIO;
		goto done;
		}