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authorNishanth Menon <nm@ti.com>2011-05-25 16:38:47 -0700
committerKevin Hilman <khilman@ti.com>2011-11-08 11:42:17 -0800
commita820ffa8fdbcaa4f5fe32e88db58acca27abbc76 (patch)
treec67de9a1f10ac2d122731be51223d4d2a42971aa /drivers/cpufreq
parent08ca3e3b8ddf0e75f734d46b31518b97256d2c17 (diff)
cpufreq: OMAP: deny initialization if no mpudev
if we do not have mpu_dev we normally fail in cpu_init. It is better to fail driver registration if the devices are not available. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/omap-cpufreq.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 3651825e7fb..dda32fd0343 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -50,6 +50,7 @@ static struct lpj_info global_lpj_ref;
static struct cpufreq_frequency_table *freq_table;
static struct clk *mpu_clk;
static char *mpu_clk_name;
+static struct device *mpu_dev;
static int omap_verify_speed(struct cpufreq_policy *policy)
{
@@ -152,7 +153,6 @@ static int omap_target(struct cpufreq_policy *policy,
static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
{
int result = 0;
- struct device *mpu_dev;
mpu_clk = clk_get(NULL, mpu_clk_name);
if (IS_ERR(mpu_clk))
@@ -162,12 +162,6 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
return -EINVAL;
policy->cur = policy->min = policy->max = omap_getspeed(policy->cpu);
- mpu_dev = omap2_get_mpuss_device();
-
- if (!mpu_dev) {
- pr_warning("%s: unable to get the mpu device\n", __func__);
- return -EINVAL;
- }
opp_init_cpufreq_table(mpu_dev, &freq_table);
if (freq_table) {
@@ -239,6 +233,13 @@ static int __init omap_cpufreq_init(void)
pr_err("%s: unsupported Silicon?\n", __func__);
return -EINVAL;
}
+
+ mpu_dev = omap2_get_mpuss_device();
+ if (!mpu_dev) {
+ pr_warning("%s: unable to get the mpu device\n", __func__);
+ return -EINVAL;
+ }
+
return cpufreq_register_driver(&omap_driver);
}