diff options
Diffstat (limited to 'drivers/cpufreq/s3c24xx-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/s3c24xx-cpufreq.c | 50 |
1 files changed, 11 insertions, 39 deletions
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index b0f343fcb7e..227ebf7c1ee 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -141,6 +141,7 @@ static int s3c_cpufreq_calcdivs(struct s3c_cpufreq_config *cfg) static void s3c_cpufreq_setfvco(struct s3c_cpufreq_config *cfg) { + cfg->mpll = _clk_mpll; (cfg->info->set_fvco)(cfg); } @@ -217,7 +218,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy, s3c_cpufreq_updateclk(clk_pclk, cpu_new.freq.pclk); /* start the frequency change */ - cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_PRECHANGE); + cpufreq_freq_transition_begin(policy, &freqs.freqs); /* If hclk is staying the same, then we do not need to * re-write the IO or the refresh timings whilst we are changing @@ -261,7 +262,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy, local_irq_restore(flags); /* notify everyone we've done this */ - cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_POSTCHANGE); + cpufreq_freq_transition_end(policy, &freqs.freqs, 0); s3c_freq_dbg("%s: finished\n", __func__); return 0; @@ -355,11 +356,6 @@ static int s3c_cpufreq_target(struct cpufreq_policy *policy, return -EINVAL; } -static unsigned int s3c_cpufreq_get(unsigned int cpu) -{ - return clk_get_rate(clk_arm) / 1000; -} - struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name) { struct clk *clk; @@ -373,23 +369,8 @@ struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name) static int s3c_cpufreq_init(struct cpufreq_policy *policy) { - printk(KERN_INFO "%s: initialising policy %p\n", __func__, policy); - - if (policy->cpu != 0) - return -EINVAL; - - policy->cur = s3c_cpufreq_get(0); - policy->min = policy->cpuinfo.min_freq = 0; - policy->max = policy->cpuinfo.max_freq = cpu_cur.info->max.fclk / 1000; - policy->governor = CPUFREQ_DEFAULT_GOVERNOR; - - /* feed the latency information from the cpu driver */ - policy->cpuinfo.transition_latency = cpu_cur.info->latency; - - if (ftab) - cpufreq_frequency_table_cpuinfo(policy, ftab); - - return 0; + policy->clk = clk_arm; + return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency); } static int __init s3c_cpufreq_initclks(void) @@ -416,14 +397,6 @@ static int __init s3c_cpufreq_initclks(void) return 0; } -static int s3c_cpufreq_verify(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - - return 0; -} - #ifdef CONFIG_PM static struct cpufreq_frequency_table suspend_pll; static unsigned int suspend_freq; @@ -432,7 +405,7 @@ static int s3c_cpufreq_suspend(struct cpufreq_policy *policy) { suspend_pll.frequency = clk_get_rate(_clk_mpll); suspend_pll.driver_data = __raw_readl(S3C2410_MPLLCON); - suspend_freq = s3c_cpufreq_get(0) * 1000; + suspend_freq = clk_get_rate(clk_arm); return 0; } @@ -472,10 +445,9 @@ static int s3c_cpufreq_resume(struct cpufreq_policy *policy) #endif static struct cpufreq_driver s3c24xx_driver = { - .flags = CPUFREQ_STICKY, - .verify = s3c_cpufreq_verify, + .flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK, .target = s3c_cpufreq_target, - .get = s3c_cpufreq_get, + .get = cpufreq_generic_get, .init = s3c_cpufreq_init, .suspend = s3c_cpufreq_suspend, .resume = s3c_cpufreq_resume, @@ -534,7 +506,7 @@ int __init s3c_cpufreq_setboard(struct s3c_cpufreq_board *board) return 0; } -int __init s3c_cpufreq_auto_io(void) +static int __init s3c_cpufreq_auto_io(void) { int ret; @@ -615,7 +587,7 @@ static int s3c_cpufreq_build_freq(void) size = cpu_cur.info->calc_freqtable(&cpu_cur, NULL, 0); size++; - ftab = kmalloc(sizeof(*ftab) * size, GFP_KERNEL); + ftab = kzalloc(sizeof(*ftab) * size, GFP_KERNEL); if (!ftab) { printk(KERN_ERR "%s: no memory for tables\n", __func__); return -ENOMEM; @@ -693,7 +665,7 @@ int __init s3c_plltab_register(struct cpufreq_frequency_table *plls, size = sizeof(*vals) * (plls_no + 1); - vals = kmalloc(size, GFP_KERNEL); + vals = kzalloc(size, GFP_KERNEL); if (vals) { memcpy(vals, plls, size); pll_reg = vals; |