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MX6: Correct calculation of PLL_SYS

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DIV_SELECT is used as Fout = Fin * div_select / 2.0, so we should do
the shift after the multiply to avoid rounding errors

Signed-off-by: Andre Renaud <andre@bluewatersys.com>
This commit is contained in:
Andre Renaud 2014-06-10 08:47:13 +12:00 committed by Stefano Babic
parent 85d8a5fc98
commit 2eb268f6fd
1 changed files with 1 additions and 1 deletions
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arch/arm/cpu/armv7/mx6/clock.c
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@ -80,7 +80,7 @@ static u32 decode_pll(enum pll_clocks pll, u32 infreq)
div = __raw_readl(&imx_ccm->analog_pll_sys); div = __raw_readl(&imx_ccm->analog_pll_sys);
div &= BM_ANADIG_PLL_SYS_DIV_SELECT; div &= BM_ANADIG_PLL_SYS_DIV_SELECT;
return infreq * (div >> 1); return (infreq * div) >> 1;
case PLL_BUS: case PLL_BUS:
div = __raw_readl(&imx_ccm->analog_pll_528); div = __raw_readl(&imx_ccm->analog_pll_528);
div &= BM_ANADIG_PLL_528_DIV_SELECT; div &= BM_ANADIG_PLL_528_DIV_SELECT;