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rk: dvfs fix round bug

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chenxing
2013-05-04 17:07:05 +08:00
parent 55fffc6ce4
commit 4e3c1f8902
1 changed files with 9 additions and 4 deletions
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13
arch/arm/plat-rk/dvfs.c
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@@ -27,7 +27,7 @@
#include <linux/io.h>
#include <linux/hrtimer.h>
#define MHz (1000 * 1000)
static LIST_HEAD(rk_dvfs_tree);
static DEFINE_MUTEX(mutex);
static DEFINE_MUTEX(rk_dvfs_mutex);
@@ -338,7 +338,7 @@ int dvfs_vd_clk_disable(struct clk *clk, int on)
DVFS_WARNING("%s(%s),vd is no target callback\n", __func__, clk->name);
return -1;
}
DVFS_DBG("%s(%s(%lu)),is end\n", __func__, dvfs_info->name, DVFS_STR_ON(on));
DVFS_DBG("%s(%s(%s)),is end\n", __func__, dvfs_info->name, DVFS_STR_DISABLE(on));
return ret;
}
@@ -348,7 +348,7 @@ EXPORT_SYMBOL(dvfs_vd_clk_disable);
static void dvfs_table_round_clk_rate(struct clk_node *dvfs_clk)
{
int i;
long temp_rate;
unsigned long temp_rate;
int rate;
int flags;
@@ -366,7 +366,12 @@ static void dvfs_table_round_clk_rate(struct clk_node *dvfs_clk)
DVFS_WARNING("clk %s:round_clk_rate : is %d,but round <=0",dvfs_clk->name,dvfs_clk->dvfs_table[i].frequency);
break;
}
temp_rate=(temp_rate/1000)+flags;
/* Set rate unit as MHZ */
if (temp_rate % MHz != 0)
temp_rate = (temp_rate / MHz + 1) * MHz;
temp_rate = (temp_rate / 1000) + flags;
DVFS_DBG("clk %s round_clk_rate %d to %d\n",
dvfs_clk->name,dvfs_clk->dvfs_table[i].frequency,(int)(temp_rate));