drm/radeon: do a posting read in evergreen_set_irq
authorAlex Deucher <alexander.deucher@amd.com>
Tue, 3 Mar 2015 01:42:53 +0000 (20:42 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 3 Mar 2015 22:28:28 +0000 (17:28 -0500)
commitc320bb5f6dc0cb88a811cbaf839303e0a3916a92
treef4d2e8f05a3ead0a3aec7fa5808ab19260ae746c
parent9d1393f23d5656cdd5f368efd60694d4aeed81d3
drm/radeon: do a posting read in evergreen_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/evergreen.c