diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-03-30 16:49:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-03-30 16:49:28 -0800 |
| commit | 391438fa4d4e36caac092fe7cd2dfa7a26ef7519 (patch) | |
| tree | 04815d8263e550fd1f4584744a49538d231f66da | |
| parent | cb487640f5f09fa2c31b418d3036628c974b99b7 (diff) | |
| download | history-391438fa4d4e36caac092fe7cd2dfa7a26ef7519.tar.gz | |
[PATCH] radeonfb: Preserve TMDS setting
radeonfb tends to override TMDS_TRANSMITTER_CNTL completely, which appears
to be incorrect with some recent flat panels. This patch changes this so
that we only tweak the bits we want in there and preserve the BIOS value
for the rest.
Along with the i2c fix, that patch fixes operations on the latest Apple
cinema displays.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/video/aty/radeon_base.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c index 409a78e34f43d4..e8eb124754b136 100644 --- a/drivers/video/aty/radeon_base.c +++ b/drivers/video/aty/radeon_base.c @@ -1743,8 +1743,7 @@ static int radeonfb_set_par(struct fb_info *info) } else { /* DFP */ newmode->fp_gen_cntl |= (FP_FPON | FP_TMDS_EN); - newmode->tmds_transmitter_cntl = (TMDS_RAN_PAT_RST | TMDS_ICHCSEL) & - ~(TMDS_PLLRST); + newmode->tmds_transmitter_cntl &= ~(TMDS_PLLRST); /* TMDS_PLL_EN bit is reversed on RV (and mobility) chips */ if (IS_R300_VARIANT(rinfo) || (rinfo->family == CHIP_FAMILY_R200) || !rinfo->has_CRTC2) |