diff options
| author | Nishanth Menon <nm@ti.com> | 2011-05-26 03:38:46 +0400 |
|---|---|---|
| committer | Kevin Hilman <khilman@ti.com> | 2011-11-08 23:42:16 +0400 |
| commit | 08ca3e3b8ddf0e75f734d46b31518b97256d2c17 (patch) | |
| tree | 0ac1c4897e31580bc11c90d059ce516c30f644e4 | |
| parent | 022ac03b45d6899219539894cff3c7ce5bd990f9 (diff) | |
| download | linux-08ca3e3b8ddf0e75f734d46b31518b97256d2c17.tar.xz | |
cpufreq: OMAP: move clk name decision to init
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>
| -rw-r--r-- | drivers/cpufreq/omap-cpufreq.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index 0a5d95c4f8eb..3651825e7fb9 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -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); } |