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SubjectRe: [PATCH v5 6/9] cpufreq: mediatek: Use auto-registration of thermal cooling device
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On 29/01/2019 05:55, Amit Kucheria wrote:
> Use the CPUFREQ_IS_COOLING_DEV flag to allow cpufreq core to
> automatically register as a thermal cooling device.
>
> This allows removal of boiler plate code from the driver.
>
> Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>

> ---
> drivers/cpufreq/mediatek-cpufreq.c | 14 ++------------
> 1 file changed, 2 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
> index eb8920d39818..4229fcc31310 100644
> --- a/drivers/cpufreq/mediatek-cpufreq.c
> +++ b/drivers/cpufreq/mediatek-cpufreq.c
> @@ -14,7 +14,6 @@
>
> #include <linux/clk.h>
> #include <linux/cpu.h>
> -#include <linux/cpu_cooling.h>
> #include <linux/cpufreq.h>
> #include <linux/cpumask.h>
> #include <linux/module.h>
> @@ -48,7 +47,6 @@ struct mtk_cpu_dvfs_info {
> struct regulator *sram_reg;
> struct clk *cpu_clk;
> struct clk *inter_clk;
> - struct thermal_cooling_device *cdev;
> struct list_head list_head;
> int intermediate_voltage;
> bool need_voltage_tracking;
> @@ -307,13 +305,6 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy,
>
> #define DYNAMIC_POWER "dynamic-power-coefficient"
>
> -static void mtk_cpufreq_ready(struct cpufreq_policy *policy)
> -{
> - struct mtk_cpu_dvfs_info *info = policy->driver_data;
> -
> - info->cdev = of_cpufreq_cooling_register(policy);
> -}
> -
> static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
> {
> struct device *cpu_dev;
> @@ -472,7 +463,6 @@ static int mtk_cpufreq_exit(struct cpufreq_policy *policy)
> {
> struct mtk_cpu_dvfs_info *info = policy->driver_data;
>
> - cpufreq_cooling_unregister(info->cdev);
> dev_pm_opp_free_cpufreq_table(info->cpu_dev, &policy->freq_table);
>
> return 0;
> @@ -480,13 +470,13 @@ static int mtk_cpufreq_exit(struct cpufreq_policy *policy)
>
> static struct cpufreq_driver mtk_cpufreq_driver = {
> .flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK |
> - CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
> + CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
> + CPUFREQ_IS_COOLING_DEV,
> .verify = cpufreq_generic_frequency_table_verify,
> .target_index = mtk_cpufreq_set_target,
> .get = cpufreq_generic_get,
> .init = mtk_cpufreq_init,
> .exit = mtk_cpufreq_exit,
> - .ready = mtk_cpufreq_ready,
> .name = "mtk-cpufreq",
> .attr = cpufreq_generic_attr,
> };
>

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