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drm/nouveau/bios: fix thinko in ZM_MASK_ADD opcode

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Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2013-05-07 15:54:13 +10:00
commit 46b47b8a7d
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/nouveau/core/subdev/bios/init.c
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@ -1940,8 +1940,8 @@ init_zm_mask_add(struct nvbios_init *init)
trace("ZM_MASK_ADD\tR[0x%06x] &= 0x%08x += 0x%08x\n", addr, mask, add);
init->offset += 13;
data = init_rd32(init, addr) & mask;
data |= ((data + add) & ~mask);
data = init_rd32(init, addr);
data = (data & mask) | ((data + add) & ~mask);
init_wr32(init, addr, data);
}