forked from luck/tmp_suning_uos_patched
[ARM] pxa: cpufreq-pxa2xx: fix DRI recomputation routine
This patch: 1) Simpifies the DRI recomputation routine by pulling out the common code 2) Fixes a bug in PXA27x DRI recomputation caused by incorrect parenthesis Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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@ -256,13 +256,9 @@ static void init_sdram_rows(void)
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static u32 mdrefr_dri(unsigned int freq)
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{
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u32 dri = 0;
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u32 interval = freq * SDRAM_TREF / sdram_rows;
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if (cpu_is_pxa25x())
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dri = ((freq * SDRAM_TREF) / (sdram_rows * 32));
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if (cpu_is_pxa27x())
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dri = ((freq * SDRAM_TREF) / (sdram_rows - 31)) / 32;
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return dri;
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return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32;
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}
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/* find a valid frequency point */
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