drm/radeon: do a posting read in evergreen_set_irq

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commit c320bb5f6d 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Alex Deucher 2015-03-02 20:42:53 -05:00 • committed by Greg Kroah-Hartman

parent 896bda003c

commit 336163cf1e

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/radeon/evergreen.c

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