diff options
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/tegra194-cpufreq.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/cpufreq/tegra194-cpufreq.c b/drivers/cpufreq/tegra194-cpufreq.c index 79015875f346..a706ba929424 100644 --- a/drivers/cpufreq/tegra194-cpufreq.c +++ b/drivers/cpufreq/tegra194-cpufreq.c @@ -21,7 +21,6 @@ #define KHZ 1000 #define REF_CLK_MHZ 408 /* 408 MHz */ #define US_DELAY 500 -#define US_DELAY_MIN 2 #define CPUFREQ_TBL_STEP_HZ (50 * KHZ * KHZ) #define MAX_CNT ~0U @@ -44,7 +43,6 @@ struct tegra194_cpufreq_data { struct tegra_cpu_ctr { u32 cpu; - u32 delay; u32 coreclk_cnt, last_coreclk_cnt; u32 refclk_cnt, last_refclk_cnt; }; @@ -112,7 +110,7 @@ static void tegra_read_counters(struct work_struct *work) val = read_freq_feedback(); c->last_refclk_cnt = lower_32_bits(val); c->last_coreclk_cnt = upper_32_bits(val); - udelay(c->delay); + udelay(US_DELAY); val = read_freq_feedback(); c->refclk_cnt = lower_32_bits(val); c->coreclk_cnt = upper_32_bits(val); @@ -139,7 +137,7 @@ static void tegra_read_counters(struct work_struct *work) * @cpu - logical cpu whose freq to be updated * Returns freq in KHz on success, 0 if cpu is offline */ -static unsigned int tegra194_get_speed_common(u32 cpu, u32 delay) +static unsigned int tegra194_get_speed_common(u32 cpu) { struct read_counters_work read_counters_work; struct tegra_cpu_ctr c; @@ -153,7 +151,6 @@ static unsigned int tegra194_get_speed_common(u32 cpu, u32 delay) * interrupts enabled. */ read_counters_work.c.cpu = cpu; - read_counters_work.c.delay = delay; INIT_WORK_ONSTACK(&read_counters_work.work, tegra_read_counters); queue_work_on(cpu, read_counters_wq, &read_counters_work.work); flush_work(&read_counters_work.work); @@ -209,7 +206,7 @@ static unsigned int tegra194_get_speed(u32 cpu) smp_call_function_single(cpu, get_cpu_cluster, &cl, true); /* reconstruct actual cpu freq using counters */ - rate = tegra194_get_speed_common(cpu, US_DELAY); + rate = tegra194_get_speed_common(cpu); /* get last written ndiv value */ ret = smp_call_function_single(cpu, get_cpu_ndiv, &ndiv, true); @@ -248,9 +245,6 @@ static int tegra194_cpufreq_init(struct cpufreq_policy *policy) if (cl >= data->num_clusters) return -EINVAL; - /* boot freq */ - policy->cur = tegra194_get_speed_common(policy->cpu, US_DELAY_MIN); - /* set same policy for all cpus in a cluster */ for (cpu = (cl * 2); cpu < ((cl + 1) * 2); cpu++) cpumask_set_cpu(cpu, policy->cpus); |