Dear all, Please ignore this patch. It has some problem. I'll fix and resend this patch on v2.
Chanwoo Choi Samsung Electronics On 2017년 09월 21일 09:33, Chanwoo Choi wrote: > This patch registers the Exynos Bus-Frequency scaling device > as a cooling device of thermal management. > > Signed-off-by: Chanwoo Choi <[email protected]> > Cc: Kukjin Kim <[email protected]> > Cc: Krzysztof Kozlowski <[email protected]> > Cc: [email protected] > Cc: [email protected] > Cc: [email protected] > --- > drivers/devfreq/Kconfig | 1 + > drivers/devfreq/exynos-bus.c | 11 +++++++++++ > 2 files changed, 12 insertions(+) > > diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig > index 6a172d338f6d..eb8128e08b2c 100644 > --- a/drivers/devfreq/Kconfig > +++ b/drivers/devfreq/Kconfig > @@ -81,6 +81,7 @@ config ARM_EXYNOS_BUS_DEVFREQ > select DEVFREQ_GOV_SIMPLE_ONDEMAND > select DEVFREQ_GOV_PASSIVE > select DEVFREQ_EVENT_EXYNOS_PPMU > + select DEVFREQ_THERMAL > select PM_DEVFREQ_EVENT > select PM_OPP > help > diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c > index c25658b26598..200ca0d11834 100644 > --- a/drivers/devfreq/exynos-bus.c > +++ b/drivers/devfreq/exynos-bus.c > @@ -15,6 +15,7 @@ > #include <linux/clk.h> > #include <linux/devfreq.h> > #include <linux/devfreq-event.h> > +#include <linux/devfreq_cooling.h> > #include <linux/device.h> > #include <linux/export.h> > #include <linux/module.h> > @@ -41,6 +42,8 @@ struct exynos_bus { > struct clk *clk; > unsigned int voltage_tolerance; > unsigned int ratio; > + > + struct thermal_cooling_device *cdev; > }; > > /* > @@ -468,6 +471,14 @@ static int exynos_bus_probe(struct platform_device *pdev) > goto err; > } > > + /* Register devfreq cooling device */ > + bus->cdev = of_devfreq_cooling_register(np, bus->devfreq); > + if (IS_ERR(bus->cdev) < 0) { > + dev_err(dev, "failed to register cooling device\n"); > + ret = PTR_ERR(bus->cdev); > + goto err; > + } > + > goto out; > passive: > /* Initialize the struct profile and governor data for passive device */ >
