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cpufreq: OMAP: move clk name decision to init

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Clk name does'nt need to dynamically detected during clk init.
move them off to driver initialization, if we dont have a clk name,
there is no point in registering the driver anyways. The actual clk
get and put is left at cpu_init and exit functions.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Nishanth Menon 2011-05-25 16:38:46 -07:00 committed by Kevin Hilman
parent 022ac03b45
commit 08ca3e3b8d
1 changed files with 13 additions and 7 deletions
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20
drivers/cpufreq/omap-cpufreq.c
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@ -49,6 +49,7 @@ 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 int omap_verify_speed(struct cpufreq_policy *policy)
{
@ -153,13 +154,7 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
int result = 0;
struct device *mpu_dev;
if (cpu_is_omap24xx())
mpu_clk = clk_get(NULL, "virt_prcm_set");
else if (cpu_is_omap34xx())
mpu_clk = clk_get(NULL, "dpll1_ck");
else if (cpu_is_omap44xx())
mpu_clk = clk_get(NULL, "dpll_mpu_ck");
mpu_clk = clk_get(NULL, mpu_clk_name);
if (IS_ERR(mpu_clk))
return PTR_ERR(mpu_clk);
@ -233,6 +228,17 @@ static struct cpufreq_driver omap_driver = {
static int __init omap_cpufreq_init(void)
{
if (cpu_is_omap24xx())
mpu_clk_name = "virt_prcm_set";
else if (cpu_is_omap34xx())
mpu_clk_name = "dpll1_ck";
else if (cpu_is_omap44xx())
mpu_clk_name = "dpll_mpu_ck";
if (!mpu_clk_name) {
pr_err("%s: unsupported Silicon?\n", __func__);
return -EINVAL;
}
return cpufreq_register_driver(&omap_driver);
}