drm/radeon: do a posting read in rs600_set_irq

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commit 54acf107e4 upstream.

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>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

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Alex Deucher 2015-03-02 20:39:56 -05:00 • committed by Luis Henriques

parent d1ba0003da

commit ec1975e134

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/radeon/rs600.c

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