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authorJustin Waters <justin.waters@timesys.com>2008-02-26 13:07:02 -0500
committerJustin Waters <justin.waters@timesys.com>2008-02-26 13:07:02 -0500
commitb80a32b9cc634adfa8eaef33ec981e7febf2ade2 (patch)
treef256bce13ba11f514a388160df84e1410bedbe2b /drivers/video/matrox/g450_pll.c
parent594133ef22fae0d737bd1b57352cf3f48a192c63 (diff)
Update the i.MX31 Kernel to 2.6.232.6.23-mx31ads-2008022618072.6.23-mx31-200802261807
This is the result of a brute-force attempt to update the kernel to 2.6.23. Now that we have a git tree, our effort will be a little nicer in the future. Signed-off-by: Justin Waters <justin.waters@timesys.com>
Diffstat (limited to 'drivers/video/matrox/g450_pll.c')
-rw-r--r--drivers/video/matrox/g450_pll.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/video/matrox/g450_pll.c b/drivers/video/matrox/g450_pll.c
index 7c76e079ca7d..d42346e7fdda 100644
--- a/drivers/video/matrox/g450_pll.c
+++ b/drivers/video/matrox/g450_pll.c
@@ -331,16 +331,19 @@ static int __g450_setclk(WPMINFO unsigned int fout, unsigned int pll,
tmp |= M1064_XPIXCLKCTRL_PLL_UP;
}
matroxfb_DAC_out(PMINFO M1064_XPIXCLKCTRL, tmp);
-#ifdef __powerpc__
- /* This is necessary to avoid jitter on PowerPC
- * (OpenFirmware) systems, but apparently
- * introduces jitter, at least on a x86-64
- * using DVI.
- * A simple workaround is disable for non-PPC.
- */
- matroxfb_DAC_out(PMINFO M1064_XDVICLKCTRL, 0);
-#endif /* __powerpc__ */
- matroxfb_DAC_out(PMINFO M1064_XPWRCTRL, xpwrctrl);
+ /* DVI PLL preferred for frequencies up to
+ panel link max, standard PLL otherwise */
+ if (fout >= MINFO->max_pixel_clock_panellink)
+ tmp = 0;
+ else tmp =
+ M1064_XDVICLKCTRL_DVIDATAPATHSEL |
+ M1064_XDVICLKCTRL_C1DVICLKSEL |
+ M1064_XDVICLKCTRL_C1DVICLKEN |
+ M1064_XDVICLKCTRL_DVILOOPCTL |
+ M1064_XDVICLKCTRL_P1LOOPBWDTCTL;
+ matroxfb_DAC_out(PMINFO M1064_XDVICLKCTRL,tmp);
+ matroxfb_DAC_out(PMINFO M1064_XPWRCTRL,
+ xpwrctrl);
matroxfb_DAC_unlock_irqrestore(flags);
}