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authorMarek Vasut <marek.vasut@gmail.com>2010-06-24 15:57:12 +0200
committerEric Miao <eric.y.miao@gmail.com>2010-08-05 14:32:28 +0800
commit0357ae8f8cf460226e6b4167ce4350452ea68943 (patch)
treea5c1000d08d890d36ef87183d45c6a0c87062e6a
parent5852984a8bf5fe028613467c11edbcae62ec43e7 (diff)
[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>
-rw-r--r--arch/arm/mach-pxa/cpufreq-pxa2xx.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/arm/mach-pxa/cpufreq-pxa2xx.c b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
index 9e4d9816726..268a9bc6be8 100644
--- a/arch/arm/mach-pxa/cpufreq-pxa2xx.c
+++ b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
@@ -256,13 +256,9 @@ static void init_sdram_rows(void)
static u32 mdrefr_dri(unsigned int freq)
{
- u32 dri = 0;
+ u32 interval = freq * SDRAM_TREF / sdram_rows;
- if (cpu_is_pxa25x())
- dri = ((freq * SDRAM_TREF) / (sdram_rows * 32));
- if (cpu_is_pxa27x())
- dri = ((freq * SDRAM_TREF) / (sdram_rows - 31)) / 32;
- return dri;
+ return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32;
}
/* find a valid frequency point */