X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;ds=sidebyside;f=arch%2Farm%2Fplat-omap%2Fcpu-omap.c;h=b2690242a3902c0ec43374c1837b2842c65c4e19;hb=d6879c585b7f8c2f3eb2f7e7beac806af4e9755c;hp=98edc9fdd6d10df39ee8d360b5108397f78112fe;hpb=f8ce25476d5f12ffa29b885e49c38cd95053437e;p=safe%2Fjmp%2Flinux-2.6

diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c
index 98edc9f..b269024 100644
--- a/arch/arm/plat-omap/cpu-omap.c
+++ b/arch/arm/plat-omap/cpu-omap.c
@@ -20,48 +20,46 @@
 #include <linux/init.h>
 #include <linux/err.h>
 #include <linux/clk.h>
+#include <linux/io.h>
 
-#include <asm/hardware.h>
-#include <asm/io.h>
+#include <mach/hardware.h>
 #include <asm/system.h>
 
+#define VERY_HI_RATE	900000000
+
+#ifdef CONFIG_ARCH_OMAP1
+#define MPU_CLK		"mpu"
+#else
+#define MPU_CLK		"virt_prcm_set"
+#endif
+
+static struct clk *mpu_clk;
+
 /* TODO: Add support for SDRAM timing changes */
 
 int omap_verify_speed(struct cpufreq_policy *policy)
 {
-	struct clk * mpu_clk;
-
 	if (policy->cpu)
 		return -EINVAL;
 
 	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
 				     policy->cpuinfo.max_freq);
-	mpu_clk = clk_get(NULL, "mpu");
-	if (IS_ERR(mpu_clk))
-		return PTR_ERR(mpu_clk);
+
 	policy->min = clk_round_rate(mpu_clk, policy->min * 1000) / 1000;
 	policy->max = clk_round_rate(mpu_clk, policy->max * 1000) / 1000;
 	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
 				     policy->cpuinfo.max_freq);
-	clk_put(mpu_clk);
-
 	return 0;
 }
 
 unsigned int omap_getspeed(unsigned int cpu)
 {
-	struct clk * mpu_clk;
 	unsigned long rate;
 
 	if (cpu)
 		return 0;
 
-	mpu_clk = clk_get(NULL, "mpu");
-	if (IS_ERR(mpu_clk))
-		return 0;
 	rate = clk_get_rate(mpu_clk) / 1000;
-	clk_put(mpu_clk);
-
 	return rate;
 }
 
@@ -69,14 +67,9 @@ static int omap_target(struct cpufreq_policy *policy,
 		       unsigned int target_freq,
 		       unsigned int relation)
 {
-	struct clk * mpu_clk;
 	struct cpufreq_freqs freqs;
 	int ret = 0;
 
-	mpu_clk = clk_get(NULL, "mpu");
-	if (IS_ERR(mpu_clk))
-		return PTR_ERR(mpu_clk);
-
 	freqs.old = omap_getspeed(0);
 	freqs.new = clk_round_rate(mpu_clk, target_freq * 1000) / 1000;
 	freqs.cpu = 0;
@@ -84,37 +77,39 @@ static int omap_target(struct cpufreq_policy *policy,
 	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
 	ret = clk_set_rate(mpu_clk, target_freq * 1000);
 	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-	clk_put(mpu_clk);
 
 	return ret;
 }
 
 static int __init omap_cpu_init(struct cpufreq_policy *policy)
 {
-	struct clk * mpu_clk;
-
-	mpu_clk = clk_get(NULL, "mpu");
+	mpu_clk = clk_get(NULL, MPU_CLK);
 	if (IS_ERR(mpu_clk))
 		return PTR_ERR(mpu_clk);
 
 	if (policy->cpu != 0)
 		return -EINVAL;
 	policy->cur = policy->min = policy->max = omap_getspeed(0);
-	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
 	policy->cpuinfo.min_freq = clk_round_rate(mpu_clk, 0) / 1000;
-	policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, 216000000) / 1000;
+	policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, VERY_HI_RATE) / 1000;
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	clk_put(mpu_clk);
 
 	return 0;
 }
 
+static int omap_cpu_exit(struct cpufreq_policy *policy)
+{
+	clk_put(mpu_clk);
+	return 0;
+}
+
 static struct cpufreq_driver omap_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= omap_verify_speed,
 	.target		= omap_target,
 	.get		= omap_getspeed,
 	.init		= omap_cpu_init,
+	.exit		= omap_cpu_exit,
 	.name		= "omap",
 };