| Message ID | 6e8ab1213d82b6de5294c0f579a24150aafaf558.1548654899.git.amit.kucheria@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | cpufreq: Add flag to auto-register as cooling device | expand |
On 28/01/2019 07:41, Amit Kucheria wrote: > Use the CPUFREQ_AUTO_REGISTER_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> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> > --- > drivers/cpufreq/imx6q-cpufreq.c | 24 ++---------------------- > 1 file changed, 2 insertions(+), 22 deletions(-) > > diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c > index 9fedf627e000..9935df234fa1 100644 > --- a/drivers/cpufreq/imx6q-cpufreq.c > +++ b/drivers/cpufreq/imx6q-cpufreq.c > @@ -9,7 +9,6 @@ > #include <linux/clk.h> > #include <linux/cpu.h> > #include <linux/cpufreq.h> > -#include <linux/cpu_cooling.h> > #include <linux/err.h> > #include <linux/module.h> > #include <linux/nvmem-consumer.h> > @@ -52,7 +51,6 @@ static struct clk_bulk_data clks[] = { > }; > > static struct device *cpu_dev; > -static struct thermal_cooling_device *cdev; > static bool free_opp; > static struct cpufreq_frequency_table *freq_table; > static unsigned int max_freq; > @@ -193,16 +191,6 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) > return 0; > } > > -static void imx6q_cpufreq_ready(struct cpufreq_policy *policy) > -{ > - cdev = of_cpufreq_cooling_register(policy); > - > - if (!cdev) > - dev_err(cpu_dev, > - "running cpufreq without cooling device: %ld\n", > - PTR_ERR(cdev)); > -} > - > static int imx6q_cpufreq_init(struct cpufreq_policy *policy) > { > int ret; > @@ -214,22 +202,14 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy) > return ret; > } > > -static int imx6q_cpufreq_exit(struct cpufreq_policy *policy) > -{ > - cpufreq_cooling_unregister(cdev); > - > - return 0; > -} > - > static struct cpufreq_driver imx6q_cpufreq_driver = { > - .flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK, > + .flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK | > + CPUFREQ_AUTO_REGISTER_COOLING_DEV, > .verify = cpufreq_generic_frequency_table_verify, > .target_index = imx6q_set_target, > .get = cpufreq_generic_get, > .init = imx6q_cpufreq_init, > - .exit = imx6q_cpufreq_exit, > .name = "imx6q-cpufreq", > - .ready = imx6q_cpufreq_ready, > .attr = cpufreq_generic_attr, > .suspend = cpufreq_generic_suspend, > }; >
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 9fedf627e000..9935df234fa1 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -9,7 +9,6 @@ #include <linux/clk.h> #include <linux/cpu.h> #include <linux/cpufreq.h> -#include <linux/cpu_cooling.h> #include <linux/err.h> #include <linux/module.h> #include <linux/nvmem-consumer.h> @@ -52,7 +51,6 @@ static struct clk_bulk_data clks[] = { }; static struct device *cpu_dev; -static struct thermal_cooling_device *cdev; static bool free_opp; static struct cpufreq_frequency_table *freq_table; static unsigned int max_freq; @@ -193,16 +191,6 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) return 0; } -static void imx6q_cpufreq_ready(struct cpufreq_policy *policy) -{ - cdev = of_cpufreq_cooling_register(policy); - - if (!cdev) - dev_err(cpu_dev, - "running cpufreq without cooling device: %ld\n", - PTR_ERR(cdev)); -} - static int imx6q_cpufreq_init(struct cpufreq_policy *policy) { int ret; @@ -214,22 +202,14 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy) return ret; } -static int imx6q_cpufreq_exit(struct cpufreq_policy *policy) -{ - cpufreq_cooling_unregister(cdev); - - return 0; -} - static struct cpufreq_driver imx6q_cpufreq_driver = { - .flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK, + .flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK | + CPUFREQ_AUTO_REGISTER_COOLING_DEV, .verify = cpufreq_generic_frequency_table_verify, .target_index = imx6q_set_target, .get = cpufreq_generic_get, .init = imx6q_cpufreq_init, - .exit = imx6q_cpufreq_exit, .name = "imx6q-cpufreq", - .ready = imx6q_cpufreq_ready, .attr = cpufreq_generic_attr, .suspend = cpufreq_generic_suspend, };
Use the CPUFREQ_AUTO_REGISTER_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> --- drivers/cpufreq/imx6q-cpufreq.c | 24 ++---------------------- 1 file changed, 2 insertions(+), 22 deletions(-)