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atyfb: reorganize clock init

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Reorganize atyfb clock init code so command line clock overrides are effective
for all chips.  The old code would silently ignore some of the command line
clock overrides with some chips.

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>
This commit is contained in:
Ville Syrjala 2007-05-08 00:39:45 -07:00 committed by Linus Torvalds
parent 94f45bcd1c
commit b4e124c138
1 changed files with 18 additions and 14 deletions
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32
drivers/video/aty/atyfb_base.c
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@ -2297,20 +2297,6 @@ static int __devinit aty_init(struct fb_info *info)
par->pll_limits.xclk = 53;
}
#endif
if (pll)
par->pll_limits.pll_max = pll;
if (mclk)
par->pll_limits.mclk = mclk;
if (xclk)
par->pll_limits.xclk = xclk;
aty_calc_mem_refresh(par, par->pll_limits.xclk);
par->pll_per = 1000000/par->pll_limits.pll_max;
par->mclk_per = 1000000/par->pll_limits.mclk;
par->xclk_per = 1000000/par->pll_limits.xclk;
par->ref_clk_per = 1000000000000ULL / 14318180;
xtal = "14.31818";
#ifdef CONFIG_FB_ATY_GX
if (!M64_HAS(INTEGRATED)) {
@ -2392,7 +2378,25 @@ static int __devinit aty_init(struct fb_info *info)
if (par->pll_limits.mclk == 67 && par->ram_type < SDRAM)
par->pll_limits.mclk = 63;
}
#endif
/* Allow command line to override clocks. */
if (pll)
par->pll_limits.pll_max = pll;
if (mclk)
par->pll_limits.mclk = mclk;
if (xclk)
par->pll_limits.xclk = xclk;
aty_calc_mem_refresh(par, par->pll_limits.xclk);
par->pll_per = 1000000/par->pll_limits.pll_max;
par->mclk_per = 1000000/par->pll_limits.mclk;
par->xclk_per = 1000000/par->pll_limits.xclk;
par->ref_clk_per = 1000000000000ULL / 14318180;
xtal = "14.31818";
#ifdef CONFIG_FB_ATY_CT
if (M64_HAS(GTB_DSP)) {
u8 pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par);