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authorEric Anholt <eric@anholt.net>2007-03-13 10:08:57 -0700
committerEric Anholt <eric@anholt.net>2007-03-13 16:59:38 -0700
commitcf33abe43bd95c9437fad8e6201a24084ff96cb8 (patch)
tree888eccc59024dce587f7d902030adaf4c3c38e9d /src/i830_sdvo.c
parent9d30f0007203157e6b82fa0ffc57324490eb2ca0 (diff)
Add write posting protection for the SDVO DPMS-on path.
Diffstat (limited to 'src/i830_sdvo.c')
-rw-r--r--src/i830_sdvo.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/i830_sdvo.c b/src/i830_sdvo.c
index a3db5176..4c543db4 100644
--- a/src/i830_sdvo.c
+++ b/src/i830_sdvo.c
@@ -695,12 +695,14 @@ i830_sdvo_dpms(xf86OutputPtr output, int mode)
if ((temp & SDVO_ENABLE) == 0)
{
OUTREG(dev_priv->output_device, temp | SDVO_ENABLE);
+ (void)INREG(dev_priv->output_device);
#if 0
/* Do it again! If we remove this below register write, or the exact
* same one 2 lines up, the mac mini SDVO output doesn't turn on.
*/
OUTREG(dev_priv->output_device,
INREG(dev_priv->output_device) | SDVO_ENABLE);
+ (void)INREG(dev_priv->output_device);
#endif
}
for (i = 0; i < 2; i++)