The atyfb does not work on my 233MHz PowerBook with Mach64 LP, when the
kernel is booted from firmware. aty_ld_pll_ct() returns 0x22 and xtal
remains at 14.31818. When booted from MacOS, aty_ld_pll_ct() returns 0x3c
and xtal is changed to 29.498928.
Google indicates that all 4 PowerBook models need the higher value.
Signed-off-by: Olaf Hering <[email protected]>
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2411,7 +2411,7 @@ static int __devinit aty_init(struct fb_
diff1 = -diff1;
if (diff2 < 0)
diff2 = -diff2;
- if (diff2 < diff1) {
+ if (diff2 < diff1 || (M64_HAS(G3_PB_1024x768))) {
par->ref_clk_per = 1000000000000ULL / 29498928;
xtal = "29.498928";
}
-
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