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drm/radeon: fix WREG32_OR macro setting bits in a register 

commit d43a93c8d9bc4e0dc0293b6458c077c3c797594f upstream.

This bug (introduced in 3.10) in WREG32_OR made
commit d3418eacad
"drm/radeon/evergreen: setup HDMI before enabling it"
cause a regression. Sometimes audio over HDMI wasn't working, sometimes
display was corrupted.

This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60687
https://bugzilla.kernel.org/show_bug.cgi?id=60709
https://bugs.freedesktop.org/show_bug.cgi?id=67767

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rafał Miłecki 2013-08-15 18:55:22 +02:00 committed by Greg Kroah-Hartman
parent 21779249f0
commit 749e7bffd3
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/radeon/radeon.h
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@ -1764,7 +1764,7 @@ void r100_io_wreg(struct radeon_device *rdev, u32 reg, u32 v);
WREG32(reg, tmp_); \
} while (0)
#define WREG32_AND(reg, and) WREG32_P(reg, 0, and)
#define WREG32_OR(reg, or) WREG32_P(reg, or, ~or)
#define WREG32_OR(reg, or) WREG32_P(reg, or, ~(or))
#define WREG32_PLL_P(reg, val, mask) \
do { \
uint32_t tmp_ = RREG32_PLL(reg); \