diff options
Diffstat (limited to 'drivers/cpufreq/arm_big_little.c')
| -rw-r--r-- | drivers/cpufreq/arm_big_little.c | 56 |
1 files changed, 16 insertions, 40 deletions
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 3549f0784af1..163e3378fe17 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -25,7 +25,7 @@ #include <linux/cpumask.h> #include <linux/export.h> #include <linux/of_platform.h> -#include <linux/opp.h> +#include <linux/pm_opp.h> #include <linux/slab.h> #include <linux/topology.h> #include <linux/types.h> @@ -47,38 +47,23 @@ static unsigned int bL_cpufreq_get(unsigned int cpu) return clk_get_rate(clk[cur_cluster]) / 1000; } -/* Validate policy frequency range */ -static int bL_cpufreq_verify_policy(struct cpufreq_policy *policy) -{ - u32 cur_cluster = cpu_to_cluster(policy->cpu); - - return cpufreq_frequency_table_verify(policy, freq_table[cur_cluster]); -} - /* Set clock frequency */ static int bL_cpufreq_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) + unsigned int index) { struct cpufreq_freqs freqs; - u32 cpu = policy->cpu, freq_tab_idx, cur_cluster; + u32 cpu = policy->cpu, cur_cluster; int ret = 0; cur_cluster = cpu_to_cluster(policy->cpu); freqs.old = bL_cpufreq_get(policy->cpu); - - /* Determine valid target frequency using freq_table */ - cpufreq_frequency_table_target(policy, freq_table[cur_cluster], - target_freq, relation, &freq_tab_idx); - freqs.new = freq_table[cur_cluster][freq_tab_idx].frequency; + freqs.new = freq_table[cur_cluster][index].frequency; pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n", - __func__, cpu, cur_cluster, freqs.old, target_freq, + __func__, cpu, cur_cluster, freqs.old, freqs.new, freqs.new); - if (freqs.old == freqs.new) - return 0; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000); @@ -98,7 +83,7 @@ static void put_cluster_clk_and_freq_table(struct device *cpu_dev) if (!atomic_dec_return(&cluster_usage[cluster])) { clk_put(clk[cluster]); - opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster); } } @@ -119,7 +104,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev) goto atomic_dec; } - ret = opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]); + ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]); if (ret) { dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n", __func__, cpu_dev->id, ret); @@ -127,7 +112,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev) } name[12] = cluster + '0'; - clk[cluster] = clk_get_sys(name, NULL); + clk[cluster] = clk_get(cpu_dev, name); if (!IS_ERR(clk[cluster])) { dev_dbg(cpu_dev, "%s: clk: %p & freq table: %p, cluster: %d\n", __func__, clk[cluster], freq_table[cluster], @@ -138,7 +123,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev) dev_err(cpu_dev, "%s: Failed to get clk for cpu: %d, cluster: %d\n", __func__, cpu_dev->id, cluster); ret = PTR_ERR(clk[cluster]); - opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); atomic_dec: atomic_dec(&cluster_usage[cluster]); @@ -165,7 +150,7 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) if (ret) return ret; - ret = cpufreq_frequency_table_cpuinfo(policy, freq_table[cur_cluster]); + ret = cpufreq_table_validate_and_show(policy, freq_table[cur_cluster]); if (ret) { dev_err(cpu_dev, "CPU %d, cluster: %d invalid freq table\n", policy->cpu, cur_cluster); @@ -173,16 +158,12 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) return ret; } - cpufreq_frequency_table_get_attr(freq_table[cur_cluster], policy->cpu); - if (arm_bL_ops->get_transition_latency) policy->cpuinfo.transition_latency = arm_bL_ops->get_transition_latency(cpu_dev); else policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - policy->cur = bL_cpufreq_get(policy->cpu); - cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu)); dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu); @@ -200,28 +181,23 @@ static int bL_cpufreq_exit(struct cpufreq_policy *policy) return -ENODEV; } + cpufreq_frequency_table_put_attr(policy->cpu); put_cluster_clk_and_freq_table(cpu_dev); dev_dbg(cpu_dev, "%s: Exited, cpu: %d\n", __func__, policy->cpu); return 0; } -/* Export freq_table to sysfs */ -static struct freq_attr *bL_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver bL_cpufreq_driver = { .name = "arm-big-little", - .flags = CPUFREQ_STICKY, - .verify = bL_cpufreq_verify_policy, - .target = bL_cpufreq_set_target, + .flags = CPUFREQ_STICKY | + CPUFREQ_HAVE_GOVERNOR_PER_POLICY, + .verify = cpufreq_generic_frequency_table_verify, + .target_index = bL_cpufreq_set_target, .get = bL_cpufreq_get, .init = bL_cpufreq_init, .exit = bL_cpufreq_exit, - .have_governor_per_policy = true, - .attr = bL_cpufreq_attr, + .attr = cpufreq_generic_attr, }; int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) |