| Message ID | 1351677237-18240-1-git-send-email-jonghwa3.lee@samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
Hi, > +++ b/Documentation/thermal/exynos_thermal_emulation > @@ -0,0 +1,49 @@ > +EXYNOS EMULATION MODE > +======================== > + > +Copyright (C) 2012 Samsung Electronics > + > +Writen by Jonghwa Lee <jonghwa3.lee@samsung.com> s/Writen/Written > + > +Description > +----------- > + > +Exynos 4x12 (4212, 4412) and 5 series provide emulation mode for thermal > management unit. > +Thermal emulation mode supports software debug for TMU's operation. > User can set temperature > +manually with software code and TMU will read current temperature from > user value not from > +sensor's value. > + > +Enabling CONFIG_EXYNOS_THERMAL_EMUL option will make this support > in available. > +When it's enabled, sysfs node will be created under > +/sys/bus/platform/devices/'exynos device name'/ with name of > 'emulation'. > + > +The sysfs node, 'emulation', will contain value 0 for the initial state. When > you input any > +temperature you want to update to sysfs node, it automatically enable > emulation mode and > +current temperature will be changed into it. > +(Exynos also supports user changable delay time which would be used to > delay of > + changing temperature. However, this node only uses same delay of real > sensing time, 938us.) > + > +Disabling emulation mode only requires writing value 0 to sysfs node. This documentation looks fine. As a reply to one of the comments in the previous version, you gave me an explanation. Could you please add that explanation here as well ? I think that would help all of us, after this patch set gets merged.. > + > + > +TEMP 120 | > + | > + 100 | > + | > + 80 | > + | +----------- > + 60 | | | > + | +-------------| | > + 40 | | | | > + | | | | > + 20 | | | +---------- > + | | | | | > + 0 > |______________|_____________|__________|__________|_______ > __ > + A A A A TIME > + |<----->| |<----->| |<----->| | > + | 938us | | | | | | > +emulation : 0 50 | 70 | 20 | 0 > +current temp : sensor 50 70 20 sensor > + > + > + > diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig > index e1cb6bd..c02a66c 100644 > --- a/drivers/thermal/Kconfig > +++ b/drivers/thermal/Kconfig > @@ -55,3 +55,12 @@ config EXYNOS_THERMAL > help > If you say yes here you get support for TMU (Thermal Managment > Unit) on SAMSUNG EXYNOS series of SoC. > + > +config EXYNOS_THERMAL_EMUL > + bool "EXYNOS TMU emulation mode support" > + depends on !CPU_EXYNOS4210 && EXYNOS_THERMAL > + help > + Exynos 4412 and 4414 and 5 series has emulation mode on TMU. > + Enable this option will be make sysfs node in exynos thermal > platform > + device directory to support emulation mode. With emulation mode > sysfs > + node, you can manually input temperature to TMU for simulation > purpose. > diff --git a/drivers/thermal/exynos_thermal.c > b/drivers/thermal/exynos_thermal.c > index fd03e85..4bdd1eb 100644 > --- a/drivers/thermal/exynos_thermal.c > +++ b/drivers/thermal/exynos_thermal.c > @@ -99,6 +99,14 @@ > #define IDLE_INTERVAL 10000 > #define MCELSIUS 1000 > > +#ifdef CONFIG_EXYNOS_THERMAL_EMUL > +#define EXYNOS_EMUL_TIME 0x57F0 > +#define EXYNOS_EMUL_TIME_SHIFT 16 > +#define EXYNOS_EMUL_DATA_SHIFT 8 > +#define EXYNOS_EMUL_DATA_MASK 0xFF > +#define EXYNOS_EMUL_ENABLE 0x1 > +#endif /* CONFIG_EXYNOS_THERMAL_EMUL */ > + > /* CPU Zone information */ > #define PANIC_ZONE 4 > #define WARN_ZONE 3 > @@ -832,6 +840,84 @@ static inline struct exynos_tmu_platform_data > *exynos_get_driver_data( > return (struct exynos_tmu_platform_data *) > platform_get_device_id(pdev)->driver_data; > } > + > +#ifdef CONFIG_EXYNOS_THERMAL_EMUL > +static ssize_t exynos_tmu_emulation_show(struct device *dev, > + struct device_attribute *attr, > + char *buf) > +{ > + struct platform_device *pdev = container_of(dev, > + struct platform_device, dev); > + struct exynos_tmu_data *data = platform_get_drvdata(pdev); > + unsigned int reg; > + u8 temp_code; > + int temp = 0; > + > + mutex_lock(&data->lock); > + clk_enable(data->clk); > + reg = readl(data->base + EXYNOS_EMUL_CON); > + clk_disable(data->clk); > + mutex_unlock(&data->lock); > + > + if (reg & EXYNOS_EMUL_ENABLE) { > + reg >>= EXYNOS_EMUL_DATA_SHIFT; > + temp_code = reg & EXYNOS_EMUL_DATA_MASK; > + temp = code_to_temp(data, temp_code); > + } else { > + temp = 0; > + } Do we still need the else part ? > + > + return sprintf(buf, "%d\n", temp); > +} > + > +static ssize_t exynos_tmu_emulation_store(struct device *dev, > + struct device_attribute *attr, > + const char *buf, size_t count) > +{ > + struct platform_device *pdev = container_of(dev, > + struct platform_device, dev); > + struct exynos_tmu_data *data = platform_get_drvdata(pdev); > + unsigned int reg; > + int temp = 0; Looks like we don't need to assign 0 to temp here.. > + > + if (!sscanf(buf, "%d\n", &temp) || temp < 0) > + return -EINVAL; > + > + mutex_lock(&data->lock); > + clk_enable(data->clk); > + > + reg = readl(data->base + EXYNOS_EMUL_CON); > + > + if (temp) > + reg = (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT) > | > + (temp_to_code(data, temp) << > EXYNOS_EMUL_DATA_SHIFT) | > + EXYNOS_EMUL_ENABLE; > + else > + reg &= ~EXYNOS_EMUL_ENABLE; > + > + writel(reg, data->base + EXYNOS_EMUL_CON); > + > + clk_disable(data->clk); > + mutex_unlock(&data->lock); > + > + return count; > +} > + > +static DEVICE_ATTR(emulation, 0644, exynos_tmu_emulation_show, > + exynos_tmu_emulation_store); > +static int create_emulation_sysfs(struct device *dev) > +{ > + return device_create_file(dev, &dev_attr_emulation); > +} > +static void remove_emulation_sysfs(struct device *dev) > +{ > + device_remove_file(dev, &dev_attr_emulation); > +} > +#else > +static inline int create_emulation_sysfs(struct device *dev) {return 0;} > +static inline void remove_emulation_sysfs(struct device *dev){} > +#endif > + > static int __devinit exynos_tmu_probe(struct platform_device *pdev) > { > struct exynos_tmu_data *data; > @@ -930,6 +1016,11 @@ static int __devinit exynos_tmu_probe(struct > platform_device *pdev) > dev_err(&pdev->dev, "Failed to register thermal > interface\n"); > goto err_clk; > } > + > + ret = create_emulation_sysfs(&pdev->dev); > + if (ret) > + dev_err(&pdev->dev, "Faield to create emulation mode s/Faield/Failed > sysfs node\n"); > + > return 0; > err_clk: > platform_set_drvdata(pdev, NULL); > @@ -941,6 +1032,8 @@ static int __devexit exynos_tmu_remove(struct > platform_device *pdev) > { > struct exynos_tmu_data *data = platform_get_drvdata(pdev); > > + remove_emulation_sysfs(&pdev->dev); > + Yes, this makes it cleaner. > exynos_tmu_control(pdev, false); > > exynos_unregister_thermal(); > -- > 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi, On 2012? 11? 01? 16:56, R, Durgadoss wrote: > Hi, > >> +++ b/Documentation/thermal/exynos_thermal_emulation >> @@ -0,0 +1,49 @@ >> +EXYNOS EMULATION MODE >> +======================== >> + >> +Copyright (C) 2012 Samsung Electronics >> + >> +Writen by Jonghwa Lee <jonghwa3.lee@samsung.com> > s/Writen/Written Oops, Sorry ^^; >> + >> +Description >> +----------- >> + >> +Exynos 4x12 (4212, 4412) and 5 series provide emulation mode for thermal >> management unit. >> +Thermal emulation mode supports software debug for TMU's operation. >> User can set temperature >> +manually with software code and TMU will read current temperature from >> user value not from >> +sensor's value. >> + >> +Enabling CONFIG_EXYNOS_THERMAL_EMUL option will make this support >> in available. >> +When it's enabled, sysfs node will be created under >> +/sys/bus/platform/devices/'exynos device name'/ with name of >> 'emulation'. >> + >> +The sysfs node, 'emulation', will contain value 0 for the initial state. When >> you input any >> +temperature you want to update to sysfs node, it automatically enable >> emulation mode and >> +current temperature will be changed into it. >> +(Exynos also supports user changable delay time which would be used to >> delay of >> + changing temperature. However, this node only uses same delay of real >> sensing time, 938us.) >> + >> +Disabling emulation mode only requires writing value 0 to sysfs node. > This documentation looks fine. As a reply to one of the comments in the > previous version, you gave me an explanation. Could you please add that > explanation here as well ? I think that would help all of us, after this > patch set gets merged.. Okay, I'll add that comments to the next patch. >> + >> + >> +TEMP 120 | >> + | >> + 100 | >> + | >> + 80 | >> + | +----------- >> + 60 | | | >> + | +-------------| | >> + 40 | | | | >> + | | | | >> + 20 | | | +---------- >> + | | | | | >> + 0 >> |______________|_____________|__________|__________|_______ >> __ >> + A A A A TIME >> + |<----->| |<----->| |<----->| | >> + | 938us | | | | | | >> +emulation : 0 50 | 70 | 20 | 0 >> +current temp : sensor 50 70 20 sensor >> + >> + >> + >> diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig >> index e1cb6bd..c02a66c 100644 >> --- a/drivers/thermal/Kconfig >> +++ b/drivers/thermal/Kconfig >> @@ -55,3 +55,12 @@ config EXYNOS_THERMAL >> help >> If you say yes here you get support for TMU (Thermal Managment >> Unit) on SAMSUNG EXYNOS series of SoC. >> + >> +config EXYNOS_THERMAL_EMUL >> + bool "EXYNOS TMU emulation mode support" >> + depends on !CPU_EXYNOS4210 && EXYNOS_THERMAL >> + help >> + Exynos 4412 and 4414 and 5 series has emulation mode on TMU. >> + Enable this option will be make sysfs node in exynos thermal >> platform >> + device directory to support emulation mode. With emulation mode >> sysfs >> + node, you can manually input temperature to TMU for simulation >> purpose. >> diff --git a/drivers/thermal/exynos_thermal.c >> b/drivers/thermal/exynos_thermal.c >> index fd03e85..4bdd1eb 100644 >> --- a/drivers/thermal/exynos_thermal.c >> +++ b/drivers/thermal/exynos_thermal.c >> @@ -99,6 +99,14 @@ >> #define IDLE_INTERVAL 10000 >> #define MCELSIUS 1000 >> >> +#ifdef CONFIG_EXYNOS_THERMAL_EMUL >> +#define EXYNOS_EMUL_TIME 0x57F0 >> +#define EXYNOS_EMUL_TIME_SHIFT 16 >> +#define EXYNOS_EMUL_DATA_SHIFT 8 >> +#define EXYNOS_EMUL_DATA_MASK 0xFF >> +#define EXYNOS_EMUL_ENABLE 0x1 >> +#endif /* CONFIG_EXYNOS_THERMAL_EMUL */ >> + >> /* CPU Zone information */ >> #define PANIC_ZONE 4 >> #define WARN_ZONE 3 >> @@ -832,6 +840,84 @@ static inline struct exynos_tmu_platform_data >> *exynos_get_driver_data( >> return (struct exynos_tmu_platform_data *) >> platform_get_device_id(pdev)->driver_data; >> } >> + >> +#ifdef CONFIG_EXYNOS_THERMAL_EMUL >> +static ssize_t exynos_tmu_emulation_show(struct device *dev, >> + struct device_attribute *attr, >> + char *buf) >> +{ >> + struct platform_device *pdev = container_of(dev, >> + struct platform_device, dev); >> + struct exynos_tmu_data *data = platform_get_drvdata(pdev); >> + unsigned int reg; >> + u8 temp_code; >> + int temp = 0; >> + >> + mutex_lock(&data->lock); >> + clk_enable(data->clk); >> + reg = readl(data->base + EXYNOS_EMUL_CON); >> + clk_disable(data->clk); >> + mutex_unlock(&data->lock); >> + >> + if (reg & EXYNOS_EMUL_ENABLE) { >> + reg >>= EXYNOS_EMUL_DATA_SHIFT; >> + temp_code = reg & EXYNOS_EMUL_DATA_MASK; >> + temp = code_to_temp(data, temp_code); >> + } else { >> + temp = 0; >> + } > Do we still need the else part ? > No, we don't. I'll remove it. >> + >> + return sprintf(buf, "%d\n", temp); >> +} >> + >> +static ssize_t exynos_tmu_emulation_store(struct device *dev, >> + struct device_attribute *attr, >> + const char *buf, size_t count) >> +{ >> + struct platform_device *pdev = container_of(dev, >> + struct platform_device, dev); >> + struct exynos_tmu_data *data = platform_get_drvdata(pdev); >> + unsigned int reg; >> + int temp = 0; > Looks like we don't need to assign 0 to temp here.. Yes, you're right. >> + >> + if (!sscanf(buf, "%d\n", &temp) || temp < 0) >> + return -EINVAL; >> + >> + mutex_lock(&data->lock); >> + clk_enable(data->clk); >> + >> + reg = readl(data->base + EXYNOS_EMUL_CON); >> + >> + if (temp) >> + reg = (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT) >> | >> + (temp_to_code(data, temp) << >> EXYNOS_EMUL_DATA_SHIFT) | >> + EXYNOS_EMUL_ENABLE; >> + else >> + reg &= ~EXYNOS_EMUL_ENABLE; >> + >> + writel(reg, data->base + EXYNOS_EMUL_CON); >> + >> + clk_disable(data->clk); >> + mutex_unlock(&data->lock); >> + >> + return count; >> +} >> + >> +static DEVICE_ATTR(emulation, 0644, exynos_tmu_emulation_show, >> + exynos_tmu_emulation_store); >> +static int create_emulation_sysfs(struct device *dev) >> +{ >> + return device_create_file(dev, &dev_attr_emulation); >> +} >> +static void remove_emulation_sysfs(struct device *dev) >> +{ >> + device_remove_file(dev, &dev_attr_emulation); >> +} >> +#else >> +static inline int create_emulation_sysfs(struct device *dev) {return 0;} >> +static inline void remove_emulation_sysfs(struct device *dev){} >> +#endif >> + >> static int __devinit exynos_tmu_probe(struct platform_device *pdev) >> { >> struct exynos_tmu_data *data; >> @@ -930,6 +1016,11 @@ static int __devinit exynos_tmu_probe(struct >> platform_device *pdev) >> dev_err(&pdev->dev, "Failed to register thermal >> interface\n"); >> goto err_clk; >> } >> + >> + ret = create_emulation_sysfs(&pdev->dev); >> + if (ret) >> + dev_err(&pdev->dev, "Faield to create emulation mode > s/Faield/Failed Typo again -_-;, sorry. >> sysfs node\n"); >> + >> return 0; >> err_clk: >> platform_set_drvdata(pdev, NULL); >> @@ -941,6 +1032,8 @@ static int __devexit exynos_tmu_remove(struct >> platform_device *pdev) >> { >> struct exynos_tmu_data *data = platform_get_drvdata(pdev); >> >> + remove_emulation_sysfs(&pdev->dev); >> + > Yes, this makes it cleaner. > >> exynos_tmu_control(pdev, false); >> >> exynos_unregister_thermal(); >> -- >> 1.7.4.1 Thanks for reviewing my codes. I'll apply your comments and re-post it as soon. Thanks, Jonghwa. > -- > To unsubscribe from this list: send the line "unsubscribe linux-pm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/thermal/exynos_thermal_emulation b/Documentation/thermal/exynos_thermal_emulation new file mode 100644 index 0000000..062d867 --- /dev/null +++ b/Documentation/thermal/exynos_thermal_emulation @@ -0,0 +1,49 @@ +EXYNOS EMULATION MODE +======================== + +Copyright (C) 2012 Samsung Electronics + +Writen by Jonghwa Lee <jonghwa3.lee@samsung.com> + +Description +----------- + +Exynos 4x12 (4212, 4412) and 5 series provide emulation mode for thermal management unit. +Thermal emulation mode supports software debug for TMU's operation. User can set temperature +manually with software code and TMU will read current temperature from user value not from +sensor's value. + +Enabling CONFIG_EXYNOS_THERMAL_EMUL option will make this support in available. +When it's enabled, sysfs node will be created under +/sys/bus/platform/devices/'exynos device name'/ with name of 'emulation'. + +The sysfs node, 'emulation', will contain value 0 for the initial state. When you input any +temperature you want to update to sysfs node, it automatically enable emulation mode and +current temperature will be changed into it. +(Exynos also supports user changable delay time which would be used to delay of + changing temperature. However, this node only uses same delay of real sensing time, 938us.) + +Disabling emulation mode only requires writing value 0 to sysfs node. + + +TEMP 120 | + | + 100 | + | + 80 | + | +----------- + 60 | | | + | +-------------| | + 40 | | | | + | | | | + 20 | | | +---------- + | | | | | + 0 |______________|_____________|__________|__________|_________ + A A A A TIME + |<----->| |<----->| |<----->| | + | 938us | | | | | | +emulation : 0 50 | 70 | 20 | 0 +current temp : sensor 50 70 20 sensor + + + diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index e1cb6bd..c02a66c 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -55,3 +55,12 @@ config EXYNOS_THERMAL help If you say yes here you get support for TMU (Thermal Managment Unit) on SAMSUNG EXYNOS series of SoC. + +config EXYNOS_THERMAL_EMUL + bool "EXYNOS TMU emulation mode support" + depends on !CPU_EXYNOS4210 && EXYNOS_THERMAL + help + Exynos 4412 and 4414 and 5 series has emulation mode on TMU. + Enable this option will be make sysfs node in exynos thermal platform + device directory to support emulation mode. With emulation mode sysfs + node, you can manually input temperature to TMU for simulation purpose. diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c index fd03e85..4bdd1eb 100644 --- a/drivers/thermal/exynos_thermal.c +++ b/drivers/thermal/exynos_thermal.c @@ -99,6 +99,14 @@ #define IDLE_INTERVAL 10000 #define MCELSIUS 1000 +#ifdef CONFIG_EXYNOS_THERMAL_EMUL +#define EXYNOS_EMUL_TIME 0x57F0 +#define EXYNOS_EMUL_TIME_SHIFT 16 +#define EXYNOS_EMUL_DATA_SHIFT 8 +#define EXYNOS_EMUL_DATA_MASK 0xFF +#define EXYNOS_EMUL_ENABLE 0x1 +#endif /* CONFIG_EXYNOS_THERMAL_EMUL */ + /* CPU Zone information */ #define PANIC_ZONE 4 #define WARN_ZONE 3 @@ -832,6 +840,84 @@ static inline struct exynos_tmu_platform_data *exynos_get_driver_data( return (struct exynos_tmu_platform_data *) platform_get_device_id(pdev)->driver_data; } + +#ifdef CONFIG_EXYNOS_THERMAL_EMUL +static ssize_t exynos_tmu_emulation_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_device *pdev = container_of(dev, + struct platform_device, dev); + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + unsigned int reg; + u8 temp_code; + int temp = 0; + + mutex_lock(&data->lock); + clk_enable(data->clk); + reg = readl(data->base + EXYNOS_EMUL_CON); + clk_disable(data->clk); + mutex_unlock(&data->lock); + + if (reg & EXYNOS_EMUL_ENABLE) { + reg >>= EXYNOS_EMUL_DATA_SHIFT; + temp_code = reg & EXYNOS_EMUL_DATA_MASK; + temp = code_to_temp(data, temp_code); + } else { + temp = 0; + } + + return sprintf(buf, "%d\n", temp); +} + +static ssize_t exynos_tmu_emulation_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct platform_device *pdev = container_of(dev, + struct platform_device, dev); + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + unsigned int reg; + int temp = 0; + + if (!sscanf(buf, "%d\n", &temp) || temp < 0) + return -EINVAL; + + mutex_lock(&data->lock); + clk_enable(data->clk); + + reg = readl(data->base + EXYNOS_EMUL_CON); + + if (temp) + reg = (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT) | + (temp_to_code(data, temp) << EXYNOS_EMUL_DATA_SHIFT) | + EXYNOS_EMUL_ENABLE; + else + reg &= ~EXYNOS_EMUL_ENABLE; + + writel(reg, data->base + EXYNOS_EMUL_CON); + + clk_disable(data->clk); + mutex_unlock(&data->lock); + + return count; +} + +static DEVICE_ATTR(emulation, 0644, exynos_tmu_emulation_show, + exynos_tmu_emulation_store); +static int create_emulation_sysfs(struct device *dev) +{ + return device_create_file(dev, &dev_attr_emulation); +} +static void remove_emulation_sysfs(struct device *dev) +{ + device_remove_file(dev, &dev_attr_emulation); +} +#else +static inline int create_emulation_sysfs(struct device *dev) {return 0;} +static inline void remove_emulation_sysfs(struct device *dev){} +#endif + static int __devinit exynos_tmu_probe(struct platform_device *pdev) { struct exynos_tmu_data *data; @@ -930,6 +1016,11 @@ static int __devinit exynos_tmu_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to register thermal interface\n"); goto err_clk; } + + ret = create_emulation_sysfs(&pdev->dev); + if (ret) + dev_err(&pdev->dev, "Faield to create emulation mode sysfs node\n"); + return 0; err_clk: platform_set_drvdata(pdev, NULL); @@ -941,6 +1032,8 @@ static int __devexit exynos_tmu_remove(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); + remove_emulation_sysfs(&pdev->dev); + exynos_tmu_control(pdev, false); exynos_unregister_thermal();
This patch supports exynos's emulation mode with newly created sysfs node. Exynos 4x12 (4212, 4412) and 5 series provide emulation mode for thermal management unit. Thermal emulation mode supports software debug for TMU's operation. User can set temperature manually with software code and TMU will read current temperature from user value not from sensor's value. This patch includes also documentary placed under Documentation/thermal/. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> --- v2 exynos_thermal.c - Fix build error occured by wrong emulation control register name. - Remove exynos5410 dependent codes. exynos_thermal_emulation - Align indentation. v3 - Remove unnecessay variables. - Do some code clean in exynos_tmu_emulation_store(). - Make wrapping function of sysfs node creation function to use #ifdefs in minimum. Documentation/thermal/exynos_thermal_emulation | 49 +++++++++++++ drivers/thermal/Kconfig | 9 +++ drivers/thermal/exynos_thermal.c | 93 ++++++++++++++++++++++++ 3 files changed, 151 insertions(+), 0 deletions(-) create mode 100644 Documentation/thermal/exynos_thermal_emulation