diff options
| -rw-r--r-- | Documentation/thermal/exynos_thermal (renamed from Documentation/hwmon/exynos4_tmu) | 35 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/thermal/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/thermal/Makefile | 1 | ||||
| -rw-r--r-- | drivers/thermal/exynos_thermal.c (renamed from drivers/hwmon/exynos4_tmu.c) | 113 | ||||
| -rw-r--r-- | include/linux/platform_data/exynos_thermal.h (renamed from include/linux/platform_data/exynos4_tmu.h) | 8 |
7 files changed, 19 insertions, 156 deletions
diff --git a/Documentation/hwmon/exynos4_tmu b/Documentation/thermal/exynos_thermal index c3c6b41db60..2b46f67b1cc 100644 --- a/Documentation/hwmon/exynos4_tmu +++ b/Documentation/thermal/exynos_thermal @@ -46,36 +46,7 @@ The threshold levels are defined as follows: The threshold and each trigger_level are set through the corresponding registers. -When an interrupt occurs, this driver notify user space of -one of four threshold levels for the interrupt -through kobject_uevent_env and sysfs_notify functions. +When an interrupt occurs, this driver notify kernel thermal framework +with the function exynos4_report_trigger. Although an interrupt condition for level_0 can be set, -it is not notified to user space through sysfs_notify function. - -Sysfs Interface ---------------- -name name of the temperature sensor - RO - -temp1_input temperature - RO - -temp1_max temperature for level_1 interrupt - RO - -temp1_crit temperature for level_2 interrupt - RO - -temp1_emergency temperature for level_3 interrupt - RO - -temp1_max_alarm alarm for level_1 interrupt - RO - -temp1_crit_alarm - alarm for level_2 interrupt - RO - -temp1_emergency_alarm - alarm for level_3 interrupt - RO +it can be used to synchronize the cooling action. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index b0a2e4c37e1..84e02b416a4 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -324,16 +324,6 @@ config SENSORS_DA9052_ADC This driver can also be built as module. If so, the module will be called da9052-hwmon. -config SENSORS_EXYNOS4_TMU - tristate "Temperature sensor on Samsung EXYNOS4" - depends on ARCH_EXYNOS4 - help - If you say yes here you get support for TMU (Thermal Management - Unit) on SAMSUNG EXYNOS4 series of SoC. - - This driver can also be built as a module. If so, the module - will be called exynos4-tmu. - config SENSORS_I5K_AMB tristate "FB-DIMM AMB temperature sensor on Intel 5000 series chipsets" depends on PCI && EXPERIMENTAL diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 7aa98119c4a..3eafe483f36 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -49,7 +49,6 @@ obj-$(CONFIG_SENSORS_DS1621) += ds1621.o obj-$(CONFIG_SENSORS_EMC1403) += emc1403.o obj-$(CONFIG_SENSORS_EMC2103) += emc2103.o obj-$(CONFIG_SENSORS_EMC6W201) += emc6w201.o -obj-$(CONFIG_SENSORS_EXYNOS4_TMU) += exynos4_tmu.o obj-$(CONFIG_SENSORS_F71805F) += f71805f.o obj-$(CONFIG_SENSORS_F71882FG) += f71882fg.o obj-$(CONFIG_SENSORS_F75375S) += f75375s.o diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 996003b3438..8f2b6eaf46b 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -46,3 +46,10 @@ config RCAR_THERMAL help Enable this to plug the R-Car thermal sensor driver into the Linux thermal framework + +config EXYNOS_THERMAL + tristate "Temperature sensor on Samsung EXYNOS" + depends on ARCH_EXYNOS4 && THERMAL + help + If you say yes here you get support for TMU (Thermal Managment + Unit) on SAMSUNG EXYNOS series of SoC. diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index aae59ad57c4..885550dc64b 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_THERMAL) += thermal_sys.o obj-$(CONFIG_CPU_THERMAL) += cpu_cooling.o obj-$(CONFIG_SPEAR_THERMAL) += spear_thermal.o obj-$(CONFIG_RCAR_THERMAL) += rcar_thermal.o +obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o diff --git a/drivers/hwmon/exynos4_tmu.c b/drivers/thermal/exynos_thermal.c index e912059140c..556d15b4b02 100644 --- a/drivers/hwmon/exynos4_tmu.c +++ b/drivers/thermal/exynos_thermal.c @@ -1,8 +1,9 @@ /* - * exynos4_tmu.c - Samsung EXYNOS4 TMU (Thermal Management Unit) + * exynos_thermal.c - Samsung EXYNOS TMU (Thermal Management Unit) * * Copyright (C) 2011 Samsung Electronics * Donggeun Kim <dg77.kim@samsung.com> + * Amit Daniel Kachhap <amit.kachhap@linaro.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -33,10 +34,7 @@ #include <linux/io.h> #include <linux/mutex.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> - -#include <linux/platform_data/exynos4_tmu.h> +#include <linux/platform_data/exynos_thermal.h> #define EXYNOS4_TMU_REG_TRIMINFO 0x0 #define EXYNOS4_TMU_REG_CONTROL 0x20 @@ -70,7 +68,6 @@ struct exynos4_tmu_data { struct exynos4_tmu_platform_data *pdata; - struct device *hwmon_dev; struct resource *mem; void __iomem *base; int irq; @@ -246,8 +243,6 @@ static void exynos4_tmu_work(struct work_struct *work) writel(EXYNOS4_TMU_INTCLEAR_VAL, data->base + EXYNOS4_TMU_REG_INTCLEAR); - kobject_uevent(&data->hwmon_dev->kobj, KOBJ_CHANGE); - enable_irq(data->irq); clk_disable(data->clk); @@ -264,87 +259,6 @@ static irqreturn_t exynos4_tmu_irq(int irq, void *id) return IRQ_HANDLED; } -static ssize_t exynos4_tmu_show_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "exynos4-tmu\n"); -} - -static ssize_t exynos4_tmu_show_temp(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct exynos4_tmu_data *data = dev_get_drvdata(dev); - int ret; - - ret = exynos4_tmu_read(data); - if (ret < 0) - return ret; - - /* convert from degree Celsius to millidegree Celsius */ - return sprintf(buf, "%d\n", ret * 1000); -} - -static ssize_t exynos4_tmu_show_alarm(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct exynos4_tmu_data *data = dev_get_drvdata(dev); - struct exynos4_tmu_platform_data *pdata = data->pdata; - int temp; - unsigned int trigger_level; - - temp = exynos4_tmu_read(data); - if (temp < 0) - return temp; - - trigger_level = pdata->threshold + pdata->trigger_levels[attr->index]; - - return sprintf(buf, "%d\n", !!(temp > trigger_level)); -} - -static ssize_t exynos4_tmu_show_level(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct exynos4_tmu_data *data = dev_get_drvdata(dev); - struct exynos4_tmu_platform_data *pdata = data->pdata; - unsigned int temp = pdata->threshold + - pdata->trigger_levels[attr->index]; - - return sprintf(buf, "%u\n", temp * 1000); -} - -static DEVICE_ATTR(name, S_IRUGO, exynos4_tmu_show_name, NULL); -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, exynos4_tmu_show_temp, NULL, 0); - -static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, - exynos4_tmu_show_alarm, NULL, 1); -static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, - exynos4_tmu_show_alarm, NULL, 2); -static SENSOR_DEVICE_ATTR(temp1_emergency_alarm, S_IRUGO, - exynos4_tmu_show_alarm, NULL, 3); - -static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, exynos4_tmu_show_level, NULL, 1); -static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, exynos4_tmu_show_level, NULL, 2); -static SENSOR_DEVICE_ATTR(temp1_emergency, S_IRUGO, - exynos4_tmu_show_level, NULL, 3); - -static struct attribute *exynos4_tmu_attributes[] = { - &dev_attr_name.attr, - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_emergency_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp1_emergency.dev_attr.attr, - NULL, -}; - -static const struct attribute_group exynos4_tmu_attr_group = { - .attrs = exynos4_tmu_attributes, -}; - static int __devinit exynos4_tmu_probe(struct platform_device *pdev) { struct exynos4_tmu_data *data; @@ -418,25 +332,9 @@ static int __devinit exynos4_tmu_probe(struct platform_device *pdev) goto err_clk; } - ret = sysfs_create_group(&pdev->dev.kobj, &exynos4_tmu_attr_group); - if (ret) { - dev_err(&pdev->dev, "Failed to create sysfs group\n"); - goto err_clk; - } - - data->hwmon_dev = hwmon_device_register(&pdev->dev); - if (IS_ERR(data->hwmon_dev)) { - ret = PTR_ERR(data->hwmon_dev); - dev_err(&pdev->dev, "Failed to register hwmon device\n"); - goto err_create_group; - } - exynos4_tmu_control(pdev, true); return 0; - -err_create_group: - sysfs_remove_group(&pdev->dev.kobj, &exynos4_tmu_attr_group); err_clk: platform_set_drvdata(pdev, NULL); clk_put(data->clk); @@ -458,9 +356,6 @@ static int __devexit exynos4_tmu_remove(struct platform_device *pdev) exynos4_tmu_control(pdev, false); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&pdev->dev.kobj, &exynos4_tmu_attr_group); - clk_put(data->clk); free_irq(data->irq, data); @@ -495,7 +390,7 @@ static int exynos4_tmu_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(exynos4_tmu_pm, exynos4_tmu_suspend, exynos4_tmu_resume); -#define EXYNOS4_TMU_PM &exynos4_tmu_pm +#define EXYNOS4_TMU_PM (&exynos4_tmu_pm) #else #define EXYNOS4_TMU_PM NULL #endif diff --git a/include/linux/platform_data/exynos4_tmu.h b/include/linux/platform_data/exynos_thermal.h index 39e038cca59..d6c3f93e7c6 100644 --- a/include/linux/platform_data/exynos4_tmu.h +++ b/include/linux/platform_data/exynos_thermal.h @@ -1,5 +1,5 @@ /* - * exynos4_tmu.h - Samsung EXYNOS4 TMU (Thermal Management Unit) + * exynos_thermal.h - Samsung EXYNOS4 TMU (Thermal Management Unit) * * Copyright (C) 2011 Samsung Electronics * Donggeun Kim <dg77.kim@samsung.com> @@ -19,8 +19,8 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#ifndef _LINUX_EXYNOS4_TMU_H -#define _LINUX_EXYNOS4_TMU_H +#ifndef _LINUX_EXYNOS_THERMAL_H +#define _LINUX_EXYNOS_THERMAL_H enum calibration_type { TYPE_ONE_POINT_TRIMMING, @@ -80,4 +80,4 @@ struct exynos4_tmu_platform_data { enum calibration_type cal_type; }; -#endif /* _LINUX_EXYNOS4_TMU_H */ +#endif /* _LINUX_EXYNOS_THERMAL_H */ |