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 */ -- 1.9.1
