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authorVille Syrjala <syrjala@sci.fi>2007-05-08 00:39:44 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:32 -0700
commit94f45bcd1c29e773b6bf189ef7b9a3437d016320 (patch)
tree6995abee26c7b861de84add49f98582dd41f0638
parent2620c6e31735248ac26403558bd4279a8af619d8 (diff)
atyfb: increase SPLL delay
Wait 5 ms instead of 500 us for the SPLL to lock. This matches the recommendation in mach64 programmer's guide. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/video/aty/mach64_ct.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/video/aty/mach64_ct.c b/drivers/video/aty/mach64_ct.c
index 1fdcfdbf669..cc9e9779b75 100644
--- a/drivers/video/aty/mach64_ct.c
+++ b/drivers/video/aty/mach64_ct.c
@@ -608,12 +608,10 @@ static void aty_resume_pll_ct(const struct fb_info *info,
aty_st_pll_ct(SCLK_FB_DIV, pll->ct.sclk_fb_div, par);
aty_st_pll_ct(SPLL_CNTL2, pll->ct.spll_cntl2, par);
/*
- * The sclk has been started. However, I believe the first clock
- * ticks it generates are not very stable. Hope this primitive loop
- * helps for Rage Mobilities that sometimes crash when
- * we switch to sclk. (Daniel Mantione, 13-05-2003)
+ * SCLK has been started. Wait for the PLL to lock. 5 ms
+ * should be enough according to mach64 programmer's guide.
*/
- udelay(500);
+ mdelay(5);
}
aty_st_pll_ct(PLL_REF_DIV, pll->ct.pll_ref_div, par);