--- zzzz-none-000/linux-3.10.107/drivers/cpufreq/exynos5440-cpufreq.c 2017-06-27 09:49:32.000000000 +0000 +++ vr9-7490-729/linux-3.10.107/drivers/cpufreq/exynos5440-cpufreq.c 2021-11-10 11:53:55.000000000 +0000 @@ -20,7 +20,7 @@ #include #include #include -#include +#include #include #include @@ -100,7 +100,6 @@ struct resource *mem; int irq; struct clk *cpu_clk; - unsigned int cur_frequency; unsigned int latency; struct cpufreq_frequency_table *freq_table; unsigned int freq_count; @@ -118,12 +117,12 @@ struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table; unsigned int tmp, clk_div, ema_div, freq, volt_id; int i = 0; - struct opp *opp; + struct dev_pm_opp *opp; rcu_read_lock(); for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) { - opp = opp_find_freq_exact(dvfs_info->dev, + opp = dev_pm_opp_find_freq_exact(dvfs_info->dev, freq_tbl[i].frequency * 1000, true); if (IS_ERR(opp)) { rcu_read_unlock(); @@ -142,7 +141,7 @@ << P0_7_CSCLKDEV_SHIFT; /* Calculate EMA */ - volt_id = opp_get_voltage(opp); + volt_id = dev_pm_opp_get_voltage(opp); volt_id = (MAX_VOLTAGE - volt_id) / VOLTAGE_STEP; if (volt_id < PMIC_HIGH_VOLT) { ema_div = (CPUEMA_HIGH << P0_7_CPUEMA_SHIFT) | @@ -165,7 +164,7 @@ return 0; } -static void exynos_enable_dvfs(void) +static void exynos_enable_dvfs(unsigned int cur_frequency) { unsigned int tmp, i, cpu; struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table; @@ -184,18 +183,18 @@ /* Set initial performance index */ for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) - if (freq_table[i].frequency == dvfs_info->cur_frequency) + if (freq_table[i].frequency == cur_frequency) break; if (freq_table[i].frequency == CPUFREQ_TABLE_END) { dev_crit(dvfs_info->dev, "Boot up frequency not supported\n"); /* Assign the highest frequency */ i = 0; - dvfs_info->cur_frequency = freq_table[i].frequency; + cur_frequency = freq_table[i].frequency; } dev_info(dvfs_info->dev, "Setting dvfs initial frequency = %uKHZ", - dvfs_info->cur_frequency); + cur_frequency); for (cpu = 0; cpu < CONFIG_NR_CPUS; cpu++) { tmp = __raw_readl(dvfs_info->base + XMU_C0_3_PSTATE + cpu * 4); @@ -209,33 +208,15 @@ dvfs_info->base + XMU_DVFS_CTRL); } -static int exynos_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - dvfs_info->freq_table); -} - -static unsigned int exynos_getspeed(unsigned int cpu) -{ - return dvfs_info->cur_frequency; -} - -static int exynos_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int exynos_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int index, tmp; - int ret = 0, i; + unsigned int tmp; + int i; struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table; mutex_lock(&cpufreq_lock); - ret = cpufreq_frequency_table_target(policy, freq_table, - target_freq, relation, &index); - if (ret) - goto out; - - freqs.old = dvfs_info->cur_frequency; + freqs.old = policy->cur; freqs.new = freq_table[index].frequency; cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); @@ -248,9 +229,8 @@ __raw_writel(tmp, dvfs_info->base + XMU_C0_3_PSTATE + i * 4); } -out: mutex_unlock(&cpufreq_lock); - return ret; + return 0; } static void exynos_cpufreq_work(struct work_struct *work) @@ -264,7 +244,7 @@ goto skip_work; mutex_lock(&cpufreq_lock); - freqs.old = dvfs_info->cur_frequency; + freqs.old = policy->cur; cur_pstate = __raw_readl(dvfs_info->base + XMU_P_STATUS); if (cur_pstate >> C0_3_PSTATE_VALID_SHIFT & 0x1) @@ -274,10 +254,9 @@ if (likely(index < dvfs_info->freq_count)) { freqs.new = freq_table[index].frequency; - dvfs_info->cur_frequency = freqs.new; } else { dev_crit(dvfs_info->dev, "New frequency out of range\n"); - freqs.new = dvfs_info->cur_frequency; + freqs.new = freqs.old; } cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); @@ -321,30 +300,21 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) { - int ret; - - ret = cpufreq_frequency_table_cpuinfo(policy, dvfs_info->freq_table); - if (ret) { - dev_err(dvfs_info->dev, "Invalid frequency table: %d\n", ret); - return ret; - } - - policy->cur = dvfs_info->cur_frequency; - policy->cpuinfo.transition_latency = dvfs_info->latency; - cpumask_setall(policy->cpus); - - cpufreq_frequency_table_get_attr(dvfs_info->freq_table, policy->cpu); - - return 0; + policy->clk = dvfs_info->cpu_clk; + return cpufreq_generic_init(policy, dvfs_info->freq_table, + dvfs_info->latency); } static struct cpufreq_driver exynos_driver = { - .flags = CPUFREQ_STICKY, - .verify = exynos_verify_speed, - .target = exynos_target, - .get = exynos_getspeed, + .flags = CPUFREQ_STICKY | CPUFREQ_ASYNC_NOTIFICATION | + CPUFREQ_NEED_INITIAL_FREQ_CHECK, + .verify = cpufreq_generic_frequency_table_verify, + .target_index = exynos_target, + .get = cpufreq_generic_get, .init = exynos_cpufreq_cpu_init, + .exit = cpufreq_generic_exit, .name = CPUFREQ_NAME, + .attr = cpufreq_generic_attr, }; static const struct of_device_id exynos_cpufreq_match[] = { @@ -360,6 +330,7 @@ int ret = -EINVAL; struct device_node *np; struct resource res; + unsigned int cur_frequency; np = pdev->dev.of_node; if (!np) @@ -396,13 +367,14 @@ goto err_put_node; } - ret = opp_init_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); + ret = dev_pm_opp_init_cpufreq_table(dvfs_info->dev, + &dvfs_info->freq_table); if (ret) { dev_err(dvfs_info->dev, "failed to init cpufreq table: %d\n", ret); goto err_put_node; } - dvfs_info->freq_count = opp_get_opp_count(dvfs_info->dev); + dvfs_info->freq_count = dev_pm_opp_get_opp_count(dvfs_info->dev); exynos_sort_descend_freq_table(); if (of_property_read_u32(np, "clock-latency", &dvfs_info->latency)) @@ -415,13 +387,13 @@ goto err_free_table; } - dvfs_info->cur_frequency = clk_get_rate(dvfs_info->cpu_clk); - if (!dvfs_info->cur_frequency) { + cur_frequency = clk_get_rate(dvfs_info->cpu_clk); + if (!cur_frequency) { dev_err(dvfs_info->dev, "Failed to get clock rate\n"); ret = -EINVAL; goto err_free_table; } - dvfs_info->cur_frequency /= 1000; + cur_frequency /= 1000; INIT_WORK(&dvfs_info->irq_work, exynos_cpufreq_work); ret = devm_request_irq(dvfs_info->dev, dvfs_info->irq, @@ -438,7 +410,7 @@ goto err_free_table; } - exynos_enable_dvfs(); + exynos_enable_dvfs(cur_frequency); ret = cpufreq_register_driver(&exynos_driver); if (ret) { dev_err(dvfs_info->dev, @@ -451,17 +423,17 @@ return 0; err_free_table: - opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); + dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); err_put_node: of_node_put(np); - dev_err(dvfs_info->dev, "%s: failed initialization\n", __func__); + dev_err(&pdev->dev, "%s: failed initialization\n", __func__); return ret; } static int exynos_cpufreq_remove(struct platform_device *pdev) { cpufreq_unregister_driver(&exynos_driver); - opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); + dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); return 0; }