summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms/powermac/cpufreq_32.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/powermac/cpufreq_32.c')
-rw-r--r--arch/powerpc/platforms/powermac/cpufreq_32.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c
index 62926248..c2b6b413 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_32.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_32.c
@@ -421,7 +421,7 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
static u32 read_gpio(struct device_node *np)
{
- u32 *reg = (u32 *)get_property(np, "reg", NULL);
+ const u32 *reg = get_property(np, "reg", NULL);
u32 offset;
if (reg == NULL)
@@ -497,7 +497,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
"frequency-gpio");
struct device_node *slew_done_gpio_np = of_find_node_by_name(NULL,
"slewing-done");
- u32 *value;
+ const u32 *value;
/*
* Check to see if it's GPIO driven or PMU only
@@ -519,15 +519,15 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
*/
if (frequency_gpio && slew_done_gpio) {
int lenp, rc;
- u32 *freqs, *ratio;
+ const u32 *freqs, *ratio;
- freqs = (u32 *)get_property(cpunode, "bus-frequencies", &lenp);
+ freqs = get_property(cpunode, "bus-frequencies", &lenp);
lenp /= sizeof(u32);
if (freqs == NULL || lenp != 2) {
printk(KERN_ERR "cpufreq: bus-frequencies incorrect or missing\n");
return 1;
}
- ratio = (u32 *)get_property(cpunode, "processor-to-bus-ratio*2", NULL);
+ ratio = get_property(cpunode, "processor-to-bus-ratio*2", NULL);
if (ratio == NULL) {
printk(KERN_ERR "cpufreq: processor-to-bus-ratio*2 missing\n");
return 1;
@@ -562,7 +562,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
/* If we use the PMU, look for the min & max frequencies in the
* device-tree
*/
- value = (u32 *)get_property(cpunode, "min-clock-frequency", NULL);
+ value = get_property(cpunode, "min-clock-frequency", NULL);
if (!value)
return 1;
low_freq = (*value) / 1000;
@@ -571,7 +571,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
if (low_freq < 100000)
low_freq *= 10;
- value = (u32 *)get_property(cpunode, "max-clock-frequency", NULL);
+ value = get_property(cpunode, "max-clock-frequency", NULL);
if (!value)
return 1;
hi_freq = (*value) / 1000;
@@ -611,13 +611,14 @@ static int pmac_cpufreq_init_7447A(struct device_node *cpunode)
static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
{
struct device_node *volt_gpio_np;
- u32 pvr, *value;
+ u32 pvr;
+ const u32 *value;
if (get_property(cpunode, "dynamic-power-step", NULL) == NULL)
return 1;
hi_freq = cur_freq;
- value = (u32 *)get_property(cpunode, "reduced-clock-frequency", NULL);
+ value = get_property(cpunode, "reduced-clock-frequency", NULL);
if (!value)
return 1;
low_freq = (*value) / 1000;
@@ -650,7 +651,7 @@ static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
static int __init pmac_cpufreq_setup(void)
{
struct device_node *cpunode;
- u32 *value;
+ const u32 *value;
if (strstr(cmd_line, "nocpufreq"))
return 0;
@@ -661,7 +662,7 @@ static int __init pmac_cpufreq_setup(void)
goto out;
/* Get current cpu clock freq */
- value = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+ value = get_property(cpunode, "clock-frequency", NULL);
if (!value)
goto out;
cur_freq = (*value) / 1000;
OpenPOWER on IntegriCloud