Hi,
exynos4 tmu is already merged 3.2-rc
you can find it at below message and latest git kernel
http://www.spinics.net/lists/lm-sensors/msg33872.html
Thank you,
Kyungmin Park
On Wed, Oct 26, 2011 at 8:36 PM, Amit Daniel Kachhap
<amit.kach...@linaro.org> wrote:
> This patch adds support for thermal sensor driver. It supports 3 trigger
> level. The first 2 level are warn and monitor temperature level. The
> third critical trigger level resets the system. The threshold
> change information is sent to the thermal interface layer.
>
> Signed-off-by: SangWook Ju <sw...@samsung.com>
> Signed-off-by: Amit Daniel Kachhap <amit.kach...@linaro.org>
> ---
> arch/arm/mach-exynos4/include/mach/exynos4-tmu.h | 75 ++++
> drivers/staging/Kconfig | 2 +
> drivers/staging/Makefile | 1 +
> drivers/staging/thermal_exynos4/sensor/Kconfig | 14 +
> drivers/staging/thermal_exynos4/sensor/Makefile | 4 +
> .../thermal_exynos4/sensor/exynos4210_tmu.c | 465
> ++++++++++++++++++++
> 6 files changed, 561 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/mach-exynos4/include/mach/exynos4-tmu.h
> create mode 100644 drivers/staging/thermal_exynos4/sensor/Kconfig
> create mode 100644 drivers/staging/thermal_exynos4/sensor/Makefile
> create mode 100644 drivers/staging/thermal_exynos4/sensor/exynos4210_tmu.c
>
> diff --git a/arch/arm/mach-exynos4/include/mach/exynos4-tmu.h
> b/arch/arm/mach-exynos4/include/mach/exynos4-tmu.h
> new file mode 100644
> index 0000000..dc7bf37
> --- /dev/null
> +++ b/arch/arm/mach-exynos4/include/mach/exynos4-tmu.h
> @@ -0,0 +1,75 @@
> +/**
> + * exynos4-tmu.h - definitions of exynos4 specific thermal interface
> + *
> + * Copyright (C) 2011 Samsung Electronics Co. ltd.
> +
> + * 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
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> +
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> +
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#ifndef _EXYNOS4_TMU_H
> +#define _EXYNOS4_TMU_H
> +
> +/**
> + * tmu_data - tmu driver private structure
> + * @t1: colling stop temperature.
> + * @dc_temp: Temperature base.
> + * @init_threshold: Initial threshold temperature.
> + * @mode: Compensation mode.
> + * @comp_threshold: compensated threshold temperature.
> + *
> + */
> +struct tmu_data {
> + char te1;
> + char te2;
> + unsigned int init_threshold;
> + int mode;
> + int cooling;
> + unsigned int comp_threshold;
> + int tmu_flag;
> +};
> +
> +/**
> + * tmu_platform_device - tmu platform specific structure
> + * @id: Device id.
> + * @tmu_base: Memory register base.
> + * @dev: TMU device.
> + * @data: TMU driver private data structure.
> + *
> + */
> +struct tmu_platform_device {
> + int id;
> + struct platform_device *pdev;
> + void __iomem *tmu_base;
> + struct device *dev;
> + struct tmu_data data;
> + struct thermal_dev *therm_fw;
> +};
> +
> +#ifdef CONFIG_PM
> +struct exynos4_tmu_register {
> + unsigned int regval_thresh_temp;
> + unsigned int regval_trig_lev0;
> + unsigned int regval_trig_lev1;
> + unsigned int regval_trig_lev2;
> + unsigned int regval_trig_lev3;
> + unsigned int regval_tmu_con0;
> + unsigned int regval_int_en;
> +};
> +#endif
> +
> +extern void exynos4_tmu_set_platdata(struct tmu_data *pd);
> +extern struct tmu_platform_device *exynos4_tmu_get_platdata(void);
> +extern int exynos4_tmu_get_irqno(int num);
> +#endif /* _EXYNOS4_TMU_H */
> diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
> index 2582e18..4376fed 100644
> --- a/drivers/staging/Kconfig
> +++ b/drivers/staging/Kconfig
> @@ -148,4 +148,6 @@ source "drivers/staging/mei/Kconfig"
>
> source "drivers/staging/nvec/Kconfig"
>
> +source "drivers/staging/thermal_exynos4/Kconfig"
> +
> endif # STAGING
> diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
> index 50d112f..24a2943 100644
> --- a/drivers/staging/Makefile
> +++ b/drivers/staging/Makefile
> @@ -65,3 +65,4 @@ obj-$(CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4) += ste_rmi4/
> obj-$(CONFIG_DRM_PSB) += gma500/
> obj-$(CONFIG_INTEL_MEI) += mei/
> obj-$(CONFIG_MFD_NVEC) += nvec/
> +obj-$(CONFIG_SAMSUNG_THERMAL_INTERFACE) += thermal_exynos4/
> diff --git a/drivers/staging/thermal_exynos4/sensor/Kconfig
> b/drivers/staging/thermal_exynos4/sensor/Kconfig
> new file mode 100644
> index 0000000..dcdd04b
> --- /dev/null
> +++ b/drivers/staging/thermal_exynos4/sensor/Kconfig
> @@ -0,0 +1,14 @@
> +#
> +# Thermal Temp sensor configuration
> +#
> +
> +config SENSORS_EXYNOS4_TMU
> + tristate "Samsung thermal sensor for exynos platform"
> + depends on ARCH_EXYNOS4
> + default n
> + help
> + Say Y here if you want to enable thermal sensor for samsung
> + exynos platform.
> +
> + This driver can also be built as a module. If so, the module
> + will be called exynos4210-tmu.
> diff --git a/drivers/staging/thermal_exynos4/sensor/Makefile
> b/drivers/staging/thermal_exynos4/sensor/Makefile
> new file mode 100644
> index 0000000..4cdb818
> --- /dev/null
> +++ b/drivers/staging/thermal_exynos4/sensor/Makefile
> @@ -0,0 +1,4 @@
> +#
> +# Makefile for sensor chip drivers.
> +#
> +obj-$(CONFIG_SENSORS_EXYNOS4_TMU)+= exynos4210_tmu.o
> diff --git a/drivers/staging/thermal_exynos4/sensor/exynos4210_tmu.c
> b/drivers/staging/thermal_exynos4/sensor/exynos4210_tmu.c
> new file mode 100644
> index 0000000..b125379
> --- /dev/null
> +++ b/drivers/staging/thermal_exynos4/sensor/exynos4210_tmu.c
> @@ -0,0 +1,465 @@
> +/**
> + * exynos4210_tmu.c - exynos4 thermal sensor driver
> + *
> + * Copyright (C) 2011 Samsung Electronics Co. ltd.
> + * Author: SangWook Ju <sw...@samsung.com>
> + * Author: Amit Daniel Kachhap <amit.kach...@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
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> +
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> +
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/fs.h>
> +#include <linux/string.h>
> +#include <linux/types.h>
> +#include <linux/kernel.h>
> +#include <linux/init.h>
> +#include <linux/delay.h>
> +#include <linux/platform_device.h>
> +#include <linux/interrupt.h>
> +#include <linux/err.h>
> +#include <linux/io.h>
> +#include <linux/irq.h>
> +#include <linux/sysfs.h>
> +#include <linux/slab.h>
> +#include <asm/irq.h>
> +#include <mach/regs-tmu.h>
> +#include <mach/exynos4-tmu.h>
> +#include <mach/thermal_interface.h>
> +
> +#define INIT_THRESHOLD 80
> +/*Monitor temp = INIT_THRESHOLD + TRIGGER_LEV0 = 85*/
> +#define TRIGGER_LEV0 5
> +/*Warning temp = INIT_THRESHOLD + TRIGGER_LEV1 = 100*/
> +#define TRIGGER_LEV1 20
> +/*Panic temp = INIT_THRESHOLD + TRIGGER_LEV2 = 110*/
> +#define TRIGGER_LEV2 30
> +#define TRIGGER_LEV3 0xFF
> +
> +#define EFUSE_MIN_VALUE 60
> +#define EFUSE_AVG_VALUE 80
> +#define EFUSE_MAX_VALUE 100
> +
> +#define VREF_SLOPE 0x07000F02
> +#define TMU_EN 0x1
> +#define TMU_DC_VALUE 25
> +
> +enum tmu_status_t {
> + TMU_STATUS_NORMAL = 0,
> + TMU_STATUS_MONITOR,
> + TMU_STATUS_WARNING,
> + TMU_STATUS_PANIC,
> +};
> +
> +static struct resource *exynos4_tmu_mem;
> +static struct workqueue_struct *tmu_wq;
> +static struct delayed_work tmu_work;
> +
> +#ifdef CONFIG_PM
> +static struct exynos4_tmu_register tmu_register_save;
> +#endif
> +
> +static int irq_tmu = NO_IRQ;
> +static struct tmu_platform_device *tmu_dev_t;
> +
> +/**
> + * exynos4_tmu_readb - read a byte value from the given register.
> + * @tmu_dev: The tmu device structure.
> + * @reg: Register.
> + *
> + * Read a byte value from the given register.
> + */
> +static unsigned int exynos4_tmu_readb(struct tmu_platform_device *tmu_dev,
> + unsigned int reg)
> +{
> + return __raw_readb(tmu_dev->tmu_base + reg);
> +}
> +
> +/**
> + * exynos4_tmu_writeb - write a byte value to the given register.
> + * @tmu_dev: The tmu device structure.
> + * @reg: Register.
> + * @val: Value to write.
> + *
> + * write a byte value to the given register.
> + */
> +static void exynos4_tmu_writeb(struct tmu_platform_device *tmu_dev,
> + unsigned int reg, unsigned int val)
> +{
> + __raw_writeb(val, tmu_dev->tmu_base + reg);
> +}
> +
> +/**
> + * exynos4_tmu_readl - Read a long value from the given register.
> + * @tmu_dev: The tmu device structure.
> + * @reg: Register.
> + *
> + * Read a long value from the given register.
> + */
> +static unsigned int exynos4_tmu_readl(struct tmu_platform_device *tmu_dev,
> + unsigned int reg)
> +{
> + return __raw_readl(tmu_dev->tmu_base + reg);
> +}
> +
> +/**
> + * exynos4_tmu_writel - write a long value to the given register.
> + * @tmu_dev: The tmu device structure.
> + * @reg: Register.
> + * @val: Value to write.
> + *
> + * write a long value to the given register.
> + */
> +static void exynos4_tmu_writel(struct tmu_platform_device *tmu_dev,
> + unsigned int reg, unsigned int val)
> +{
> + __raw_writel(val, tmu_dev->tmu_base + reg);
> +}
> +
> +
> +static int exynos4_tmu_current_temp(struct tmu_platform_device *tmu_dev)
> +{
> + int temp;
> + temp = exynos4_tmu_readl(tmu_dev, CURRENT_TEMP)
> + - tmu_dev->data.te1 + TMU_DC_VALUE;
> + return temp;
> +}
> +
> +/**
> + * tmu_monitor - Timer handler for monitoring interrupt.
> + * @work: temp work.
> + *
> + * Timer handler for monitor/warning/panic interrupts.
> +*/
> +
> +static void tmu_monitor(struct work_struct *work)
> +{
> + exynos4_report_trigger();
> + enable_irq(irq_tmu);
> +}
> +
> +int exynos4_tmu_read_temp(int *temp)
> +{
> + *temp = 0;
> + if (tmu_dev_t)
> + *temp = exynos4_tmu_readl(tmu_dev_t, CURRENT_TEMP)
> + - tmu_dev_t->data.te1 + TMU_DC_VALUE;
> + if (*temp > 0)
> + return 0;
> + else
> + return -EINVAL;
> +}
> +
> +/*
> + * exynos4_tmu_initialize - Initializes the TMU driver.
> + * @pdev: The platform device structure.
> + *
> + * Initialises the different registers of the temperature sensor.
> + */
> +static int exynos4_tmu_initialize(struct platform_device *pdev)
> +{
> + struct tmu_platform_device *tmu_dev = platform_get_drvdata(pdev);
> + unsigned int en;
> + unsigned int te_temp;
> + unsigned int t_new;
> +
> + en = (exynos4_tmu_readb(tmu_dev, TMU_STATUS) & 0x1);
> + if (!en) {
> + dev_err(&pdev->dev, "failed to start tmu drvier\n");
> + return -ENOENT;
> + }
> +
> + /* Temperature compensation */
> + te_temp = exynos4_tmu_readl(tmu_dev, TRIMINFO);
> + tmu_dev->data.te1 = te_temp & TRIM_TEMP_MASK;
> + tmu_dev->data.te2 = ((te_temp >> 8) & TRIM_TEMP_MASK);
> +
> + if ((EFUSE_MIN_VALUE > tmu_dev->data.te1) ||
> + (tmu_dev->data.te1 > EFUSE_MAX_VALUE) ||
> + (tmu_dev->data.te2 != 0))
> + tmu_dev->data.te1 = EFUSE_AVG_VALUE;
> +
> + t_new = INIT_THRESHOLD + tmu_dev->data.te1 - TMU_DC_VALUE;
> +
> + exynos4_tmu_writel(tmu_dev, THRESHOLD_TEMP, t_new);
> +
> + /* Need to initialize regsiter setting after getting parameter info */
> + /* [28:23] vref [11:8] slope - Tunning parameter */
> + exynos4_tmu_writel(tmu_dev, TMU_CON0, VREF_SLOPE);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV0, TRIGGER_LEV0);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV1, TRIGGER_LEV1);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV2, TRIGGER_LEV2);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV3, TRIGGER_LEV3);
> + pr_info("TMU is initialized !!\n");
> + pr_info("Threshold temp: %dc Monitor temp: %dc\n",
> + INIT_THRESHOLD,
> + INIT_THRESHOLD + exynos4_tmu_readb(tmu_dev,
> TRG_LEV0));
> + pr_info("Warning temp: %dc Panic temp: %dc\n",
> + INIT_THRESHOLD + exynos4_tmu_readb(tmu_dev, TRG_LEV1),
> + INIT_THRESHOLD + exynos4_tmu_readb(tmu_dev,
> TRG_LEV2));
> + pr_info("Cooling temp: %dc\n",
> + tmu_dev->data.cooling);
> +}
> +
> +/**
> + * exynos4_tmu_start - Triggers the TMU driver.
> + * @pdev: The platform device structure.
> + *
> + * Triggers the temperature sensor.
> + */
> +static void exynos4_tmu_start(struct platform_device *pdev)
> +{
> + struct tmu_platform_device *tmu_dev = platform_get_drvdata(pdev);
> + unsigned int con, cur_temp;
> + exynos4_tmu_writel(tmu_dev, INTCLEAR,
> + INTCLEAR0|INTCLEAR1|INTCLEAR2|INTCLEAR3);
> +
> + /* TMU core enable */
> + con = exynos4_tmu_readl(tmu_dev, TMU_CON0);
> + con |= TMU_EN;
> + exynos4_tmu_writel(tmu_dev, TMU_CON0, con);
> +
> + /*LEV0 LEV1 LEV2 interrupt enable */
> + exynos4_tmu_writel(tmu_dev, INTEN, (INTEN0|INTEN1|INTEN2));
> + usleep_range(200, 1000);
> + cur_temp = exynos4_tmu_current_temp(tmu_dev);
> + pr_info("Current Temperature : %dc\n\n", cur_temp);
> +}
> +/**
> + * exynos4_tmu_irq - IRQ handler for tmu interrupt.
> + * @irq: IRQ line.
> + * @id: void data pointer for the tmu device.
> + *
> + * IRQ handler for interrupt.
> +*/
> +static irqreturn_t exynos4_tmu_irq(int irq, void *id)
> +{
> + struct tmu_platform_device *tmu_dev = (struct tmu_platform_device
> *)id;
> + unsigned int status;
> +
> + disable_irq_nosync(irq);
> +
> + status = __raw_readl(tmu_dev->tmu_base + INTSTAT);
> +
> + if (status & INTSTAT0) {
> + pr_info("Monitor interrupt occured!!!!\n");
> + __raw_writel(INTCLEAR0, tmu_dev->tmu_base + INTCLEAR);
> + tmu_dev->data.tmu_flag = TMU_STATUS_MONITOR;
> + queue_delayed_work_on(0, tmu_wq, &tmu_work,
> + usecs_to_jiffies(10 * 1000));
> + } else if (status & INTSTAT1) {
> + pr_info("Warning interrupt occured!!!!\n");
> + __raw_writel(INTCLEAR1, tmu_dev->tmu_base + INTCLEAR);
> + tmu_dev->data.tmu_flag = TMU_STATUS_WARNING;
> + queue_delayed_work_on(0, tmu_wq, &tmu_work,
> + usecs_to_jiffies(10 * 1000));
> + } else if (status & INTSTAT2) {
> + pr_info("Panic interrupt occured!!!!\n");
> + __raw_writel(INTCLEAR2, tmu_dev->tmu_base + INTCLEAR);
> + tmu_dev->data.tmu_flag = TMU_STATUS_PANIC;
> + queue_delayed_work_on(0, tmu_wq, &tmu_work,
> + usecs_to_jiffies(10 * 1000));
> + } else {
> + pr_err("%s: TMU interrupt error\n", __func__);
> + return -ENODEV;
> + }
> +
> + return IRQ_HANDLED;
> +}
> +
> +/**
> + * exynos4_tmu_probe - device probe entry.
> + * @pdev: The device being probed.
> + */
> +static int __devinit exynos4_tmu_probe(struct platform_device *pdev)
> +{
> + struct tmu_platform_device *tmu_dev = platform_get_drvdata(pdev);
> + struct resource *res;
> + int ret;
> +
> + pr_debug("%s: probe=%p\n", __func__, pdev);
> + irq_tmu = platform_get_irq(pdev, 0);
> + if (irq_tmu < 0) {
> + dev_err(&pdev->dev, "no irq for thermal monitor\n");
> + return -ENOENT;
> + }
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + if (res == NULL) {
> + dev_err(&pdev->dev, "failed to get memory region resource\n");
> + return -ENOENT;
> + }
> +
> + exynos4_tmu_mem = request_mem_region(res->start,
> + res->end-res->start+1,
> + pdev->name);
> + if (exynos4_tmu_mem == NULL) {
> + dev_err(&pdev->dev, "failed to reserve memory region\n");
> + ret = -ENOENT;
> + goto err_nores;
> + }
> +
> + tmu_dev->tmu_base = ioremap(res->start, (res->end - res->start) + 1);
> + if (tmu_dev->tmu_base == NULL) {
> + dev_err(&pdev->dev, "failed ioremap()\n");
> + ret = -EINVAL;
> + goto err_nomap;
> + }
> + tmu_dev->pdev = pdev;
> + tmu_dev->dev = &pdev->dev;
> +
> + ret = request_irq(irq_tmu, exynos4_tmu_irq,
> + IRQF_DISABLED, "exynos4-tmu ", tmu_dev);
> + if (ret) {
> + dev_err(&pdev->dev, "IRQ%d error %d\n", irq_tmu, ret);
> + goto err_irq;
> + }
> +
> + tmu_dev_t = tmu_dev;
> +
> + exynos4_tmu_initialize(pdev);
> + if (ret)
> + goto err_nores;
> +
> + exynos4_tmu_start(pdev);
> +
> + exynos4_read_sensor = exynos4_tmu_read_temp;
> +
> + return 0;
> +err_irq:
> + iounmap(tmu_dev->tmu_base);
> +err_nomap:
> + release_resource(exynos4_tmu_mem);
> +err_nores:
> + return ret;
> +}
> +
> +/**
> + * exynos4_tmu_remove - device remove entry.
> + * @pdev: The device being removed.
> + */
> +static int __devinit exynos4_tmu_remove(struct platform_device *pdev)
> +{
> + struct tmu_platform_device *tmu_dev = platform_get_drvdata(pdev);
> + free_irq(irq_tmu, tmu_dev);
> + iounmap(tmu_dev->tmu_base);
> + release_resource(exynos4_tmu_mem);
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM
> +/**
> + * exynos4_tmu_suspend - device suspend function.
> + * @pdev: The device being suspended.
> + * @state: suspend event message.
> + */
> +static int exynos4_tmu_suspend(struct platform_device *pdev, pm_message_t
> state)
> +{
> + struct tmu_platform_device *tmu_dev = platform_get_drvdata(pdev);
> +
> + tmu_register_save.regval_thresh_temp =
> + exynos4_tmu_readb(tmu_dev, THRESHOLD_TEMP);
> + tmu_register_save.regval_trig_lev0 =
> + exynos4_tmu_readb(tmu_dev, TRG_LEV0);
> + tmu_register_save.regval_trig_lev1 =
> + exynos4_tmu_readb(tmu_dev, TRG_LEV1);
> + tmu_register_save.regval_trig_lev2 =
> + exynos4_tmu_readb(tmu_dev, TRG_LEV2);
> + tmu_register_save.regval_trig_lev3 =
> + exynos4_tmu_readb(tmu_dev, TRG_LEV3);
> + tmu_register_save.regval_tmu_con0 =
> + exynos4_tmu_readl(tmu_dev, TMU_CON0);
> + tmu_register_save.regval_int_en =
> + exynos4_tmu_readl(tmu_dev, INTEN);
> + return 0;
> +}
> +
> +/**
> + * exynos4_tmu_resume - device resume function.
> + * @pdev: The device being suspended.
> + */
> +static int exynos4_tmu_resume(struct platform_device *pdev)
> +{
> + struct tmu_platform_device *tmu_dev = platform_get_drvdata(pdev);
> +
> + exynos4_tmu_writeb(tmu_dev, THRESHOLD_TEMP,
> + tmu_register_save.regval_thresh_temp);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV0,
> + tmu_register_save.regval_trig_lev0);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV1,
> + tmu_register_save.regval_trig_lev1);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV2,
> + tmu_register_save.regval_trig_lev2);
> + exynos4_tmu_writeb(tmu_dev, TRG_LEV3,
> + tmu_register_save.regval_trig_lev3);
> + exynos4_tmu_writeb(tmu_dev, TMU_CON0,
> + tmu_register_save.regval_tmu_con0);
> + exynos4_tmu_writel(tmu_dev, INTEN,
> + tmu_register_save.regval_int_en);
> + exynos4_tmu_writel(tmu_dev, INTCLEAR,
> + INTCLEAR0|INTCLEAR1|INTCLEAR2|INTCLEAR3);
> + return 0;
> +}
> +
> +#else
> +#define exynos4_tmu_suspend NULL
> +#define exynos4_tmu_resume NULL
> +#endif
> +
> +static struct platform_driver exynos4_tmu_driver = {
> + .probe = exynos4_tmu_probe,
> + .remove = exynos4_tmu_remove,
> + .suspend = exynos4_tmu_suspend,
> + .resume = exynos4_tmu_resume,
> + .driver = {
> + .name = "exynos4-tmu",
> + .owner = THIS_MODULE,
> + },
> +};
> +
> +static int __init exynos4_tmu_driver_init(void)
> +{
> + int ret = 0;
> + pr_info("EXYNOS4 TMU driver is loaded.\n");
> + tmu_wq = create_workqueue("tmu");
> + if (!tmu_wq) {
> + pr_err(" creation of tmu failed\n");
> + ret = -EFAULT;
> + goto out;
> + }
> + INIT_DELAYED_WORK_DEFERRABLE(&tmu_work, tmu_monitor);
> + ret = platform_driver_register(&exynos4_tmu_driver);
> + if (ret) {
> + pr_err("registeration of tmu_driver failed\n");
> + destroy_workqueue(tmu_wq);
> + goto out;
> + }
> +out:
> + return ret;
> +}
> +
> +static void __exit exynos4_tmu_driver_exit(void)
> +{
> + destroy_workqueue(tmu_wq);
> + platform_driver_unregister(&exynos4_tmu_driver);
> +}
> +
> +module_init(exynos4_tmu_driver_init);
> +module_exit(exynos4_tmu_driver_exit);
> +
> +MODULE_AUTHOR("Samsung Electronics");
> +MODULE_DESCRIPTION("EXYNOS4 temperature sensor driver");
> +MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:exynos4-tmu");
> --
> 1.7.1
>
>
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