drm/radeon: do a posting read in cik_set_irq
authorAlex Deucher <alexander.deucher@amd.com>
Tue, 3 Mar 2015 01:45:24 +0000 (20:45 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 3 Mar 2015 22:28:29 +0000 (17:28 -0500)
commitcffefd9bb31cd35ab745d3b49005d10616d25bdc
treed8bd408ffae38efc7dfa958ecd802f87e573cf25
parent0586915ec10d0ae60de5cd3381ad25a704760402
drm/radeon: do a posting read in cik_set_irq

To make sure the writes go through the pci bridge.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=90741

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/radeon/cik.c