drm/radeon: do a posting read in si_set_irq

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[ Upstream commit 0586915ec1 ]

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
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

...

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Alex Deucher 2015-03-02 20:43:53 -05:00 • committed by Sasha Levin

parent 09e605b314

commit 030b28dca1

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/radeon/si.c

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