thermal: exynos5: add exynos5250 thermal sensor driver support
Insert exynos5 TMU sensor changes into the thermal driver. Some exynos4 changes are made generic for exynos series. [akpm@linux-foundation.org: fix comment layout] Signed-off-by: SangWook Ju <sw.ju@samsung.com> Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Durgadoss <durgadoss.r@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Jean Delvare <khali@linux-fr.org> Cc: Kyungmin Park <kmpark@infradead.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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@ -49,7 +49,7 @@ config RCAR_THERMAL
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config EXYNOS_THERMAL
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config EXYNOS_THERMAL
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tristate "Temperature sensor on Samsung EXYNOS"
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tristate "Temperature sensor on Samsung EXYNOS"
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depends on ARCH_EXYNOS4 && THERMAL
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depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL
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help
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help
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If you say yes here you get support for TMU (Thermal Managment
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If you say yes here you get support for TMU (Thermal Managment
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Unit) on SAMSUNG EXYNOS series of SoC.
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Unit) on SAMSUNG EXYNOS series of SoC.
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@ -33,44 +33,83 @@
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#include <linux/kobject.h>
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#include <linux/kobject.h>
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#include <linux/io.h>
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#include <linux/io.h>
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#include <linux/mutex.h>
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#include <linux/mutex.h>
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#include <linux/platform_data/exynos_thermal.h>
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#include <linux/platform_data/exynos_thermal.h>
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#include <linux/of.h>
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#define EXYNOS4_TMU_REG_TRIMINFO 0x0
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#include <plat/cpu.h>
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#define EXYNOS4_TMU_REG_CONTROL 0x20
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#define EXYNOS4_TMU_REG_STATUS 0x28
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#define EXYNOS4_TMU_REG_CURRENT_TEMP 0x40
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#define EXYNOS4_TMU_REG_THRESHOLD_TEMP 0x44
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#define EXYNOS4_TMU_REG_TRIG_LEVEL0 0x50
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#define EXYNOS4_TMU_REG_TRIG_LEVEL1 0x54
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#define EXYNOS4_TMU_REG_TRIG_LEVEL2 0x58
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#define EXYNOS4_TMU_REG_TRIG_LEVEL3 0x5C
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#define EXYNOS4_TMU_REG_PAST_TEMP0 0x60
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#define EXYNOS4_TMU_REG_PAST_TEMP1 0x64
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#define EXYNOS4_TMU_REG_PAST_TEMP2 0x68
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#define EXYNOS4_TMU_REG_PAST_TEMP3 0x6C
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#define EXYNOS4_TMU_REG_INTEN 0x70
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#define EXYNOS4_TMU_REG_INTSTAT 0x74
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#define EXYNOS4_TMU_REG_INTCLEAR 0x78
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#define EXYNOS4_TMU_GAIN_SHIFT 8
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/* Exynos generic registers */
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#define EXYNOS4_TMU_REF_VOLTAGE_SHIFT 24
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#define EXYNOS_TMU_REG_TRIMINFO 0x0
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#define EXYNOS_TMU_REG_CONTROL 0x20
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#define EXYNOS_TMU_REG_STATUS 0x28
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#define EXYNOS_TMU_REG_CURRENT_TEMP 0x40
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#define EXYNOS_TMU_REG_INTEN 0x70
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#define EXYNOS_TMU_REG_INTSTAT 0x74
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#define EXYNOS_TMU_REG_INTCLEAR 0x78
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#define EXYNOS4_TMU_TRIM_TEMP_MASK 0xff
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#define EXYNOS_TMU_TRIM_TEMP_MASK 0xff
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#define EXYNOS4_TMU_CORE_ON 3
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#define EXYNOS_TMU_GAIN_SHIFT 8
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#define EXYNOS4_TMU_CORE_OFF 2
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#define EXYNOS_TMU_REF_VOLTAGE_SHIFT 24
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#define EXYNOS4_TMU_DEF_CODE_TO_TEMP_OFFSET 50
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#define EXYNOS_TMU_CORE_ON 3
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#define EXYNOS4_TMU_TRIG_LEVEL0_MASK 0x1
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#define EXYNOS_TMU_CORE_OFF 2
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#define EXYNOS4_TMU_TRIG_LEVEL1_MASK 0x10
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#define EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET 50
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#define EXYNOS4_TMU_TRIG_LEVEL2_MASK 0x100
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#define EXYNOS4_TMU_TRIG_LEVEL3_MASK 0x1000
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#define EXYNOS4_TMU_INTCLEAR_VAL 0x1111
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struct exynos4_tmu_data {
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/* Exynos4210 specific registers */
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struct exynos4_tmu_platform_data *pdata;
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#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP 0x44
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#define EXYNOS4210_TMU_REG_TRIG_LEVEL0 0x50
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#define EXYNOS4210_TMU_REG_TRIG_LEVEL1 0x54
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#define EXYNOS4210_TMU_REG_TRIG_LEVEL2 0x58
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#define EXYNOS4210_TMU_REG_TRIG_LEVEL3 0x5C
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#define EXYNOS4210_TMU_REG_PAST_TEMP0 0x60
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#define EXYNOS4210_TMU_REG_PAST_TEMP1 0x64
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#define EXYNOS4210_TMU_REG_PAST_TEMP2 0x68
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#define EXYNOS4210_TMU_REG_PAST_TEMP3 0x6C
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#define EXYNOS4210_TMU_TRIG_LEVEL0_MASK 0x1
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#define EXYNOS4210_TMU_TRIG_LEVEL1_MASK 0x10
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#define EXYNOS4210_TMU_TRIG_LEVEL2_MASK 0x100
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#define EXYNOS4210_TMU_TRIG_LEVEL3_MASK 0x1000
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#define EXYNOS4210_TMU_INTCLEAR_VAL 0x1111
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/* Exynos5250 and Exynos4412 specific registers */
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#define EXYNOS_TMU_TRIMINFO_CON 0x14
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#define EXYNOS_THD_TEMP_RISE 0x50
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#define EXYNOS_THD_TEMP_FALL 0x54
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#define EXYNOS_EMUL_CON 0x80
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#define EXYNOS_TRIMINFO_RELOAD 0x1
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#define EXYNOS_TMU_CLEAR_RISE_INT 0x111
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#define EXYNOS_TMU_CLEAR_FALL_INT (0x111 << 16)
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#define EXYNOS_MUX_ADDR_VALUE 6
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#define EXYNOS_MUX_ADDR_SHIFT 20
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#define EXYNOS_TMU_TRIP_MODE_SHIFT 13
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#define EFUSE_MIN_VALUE 40
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#define EFUSE_MAX_VALUE 100
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/* In-kernel thermal framework related macros & definations */
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#define SENSOR_NAME_LEN 16
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#define MAX_TRIP_COUNT 8
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#define MAX_COOLING_DEVICE 4
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#define ACTIVE_INTERVAL 500
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#define IDLE_INTERVAL 10000
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/* CPU Zone information */
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#define PANIC_ZONE 4
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#define WARN_ZONE 3
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#define MONITOR_ZONE 2
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#define SAFE_ZONE 1
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#define GET_ZONE(trip) (trip + 2)
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#define GET_TRIP(zone) (zone - 2)
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struct exynos_tmu_data {
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struct exynos_tmu_platform_data *pdata;
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struct resource *mem;
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struct resource *mem;
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void __iomem *base;
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void __iomem *base;
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int irq;
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int irq;
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enum soc_type soc;
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struct work_struct irq_work;
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struct work_struct irq_work;
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struct mutex lock;
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struct mutex lock;
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struct clk *clk;
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struct clk *clk;
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@ -81,16 +120,17 @@ struct exynos4_tmu_data {
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* TMU treats temperature as a mapped temperature code.
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* TMU treats temperature as a mapped temperature code.
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* The temperature is converted differently depending on the calibration type.
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* The temperature is converted differently depending on the calibration type.
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*/
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*/
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static int temp_to_code(struct exynos4_tmu_data *data, u8 temp)
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static int temp_to_code(struct exynos_tmu_data *data, u8 temp)
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{
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{
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struct exynos4_tmu_platform_data *pdata = data->pdata;
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struct exynos_tmu_platform_data *pdata = data->pdata;
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int temp_code;
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int temp_code;
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/* temp should range between 25 and 125 */
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if (data->soc == SOC_ARCH_EXYNOS4210)
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if (temp < 25 || temp > 125) {
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/* temp should range between 25 and 125 */
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temp_code = -EINVAL;
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if (temp < 25 || temp > 125) {
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goto out;
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temp_code = -EINVAL;
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}
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goto out;
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}
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switch (pdata->cal_type) {
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switch (pdata->cal_type) {
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case TYPE_TWO_POINT_TRIMMING:
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case TYPE_TWO_POINT_TRIMMING:
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@ -102,7 +142,7 @@ static int temp_to_code(struct exynos4_tmu_data *data, u8 temp)
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temp_code = temp + data->temp_error1 - 25;
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temp_code = temp + data->temp_error1 - 25;
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break;
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break;
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default:
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default:
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temp_code = temp + EXYNOS4_TMU_DEF_CODE_TO_TEMP_OFFSET;
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temp_code = temp + EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET;
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break;
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break;
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}
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}
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out:
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out:
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* Calculate a temperature value from a temperature code.
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* Calculate a temperature value from a temperature code.
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* The unit of the temperature is degree Celsius.
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* The unit of the temperature is degree Celsius.
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*/
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*/
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static int code_to_temp(struct exynos4_tmu_data *data, u8 temp_code)
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static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
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{
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{
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struct exynos4_tmu_platform_data *pdata = data->pdata;
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struct exynos_tmu_platform_data *pdata = data->pdata;
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int temp;
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int temp;
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/* temp_code should range between 75 and 175 */
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if (data->soc == SOC_ARCH_EXYNOS4210)
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if (temp_code < 75 || temp_code > 175) {
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/* temp_code should range between 75 and 175 */
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temp = -ENODATA;
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if (temp_code < 75 || temp_code > 175) {
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goto out;
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temp = -ENODATA;
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}
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goto out;
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}
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switch (pdata->cal_type) {
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switch (pdata->cal_type) {
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case TYPE_TWO_POINT_TRIMMING:
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case TYPE_TWO_POINT_TRIMMING:
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@ -133,54 +174,92 @@ static int code_to_temp(struct exynos4_tmu_data *data, u8 temp_code)
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temp = temp_code - data->temp_error1 + 25;
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temp = temp_code - data->temp_error1 + 25;
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break;
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break;
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default:
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default:
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temp = temp_code - EXYNOS4_TMU_DEF_CODE_TO_TEMP_OFFSET;
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temp = temp_code - EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET;
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break;
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break;
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}
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}
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out:
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out:
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return temp;
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return temp;
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}
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}
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static int exynos4_tmu_initialize(struct platform_device *pdev)
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static int exynos_tmu_initialize(struct platform_device *pdev)
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{
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{
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struct exynos4_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos4_tmu_platform_data *pdata = data->pdata;
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struct exynos_tmu_platform_data *pdata = data->pdata;
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unsigned int status, trim_info;
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unsigned int status, trim_info, rising_threshold;
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int ret = 0, threshold_code;
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int ret = 0, threshold_code;
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mutex_lock(&data->lock);
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mutex_lock(&data->lock);
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clk_enable(data->clk);
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clk_enable(data->clk);
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status = readb(data->base + EXYNOS4_TMU_REG_STATUS);
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status = readb(data->base + EXYNOS_TMU_REG_STATUS);
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if (!status) {
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if (!status) {
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ret = -EBUSY;
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ret = -EBUSY;
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goto out;
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goto out;
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}
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}
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/* Save trimming info in order to perform calibration */
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if (data->soc == SOC_ARCH_EXYNOS) {
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trim_info = readl(data->base + EXYNOS4_TMU_REG_TRIMINFO);
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__raw_writel(EXYNOS_TRIMINFO_RELOAD,
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data->temp_error1 = trim_info & EXYNOS4_TMU_TRIM_TEMP_MASK;
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data->base + EXYNOS_TMU_TRIMINFO_CON);
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data->temp_error2 = ((trim_info >> 8) & EXYNOS4_TMU_TRIM_TEMP_MASK);
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/* Write temperature code for threshold */
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threshold_code = temp_to_code(data, pdata->threshold);
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if (threshold_code < 0) {
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ret = threshold_code;
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goto out;
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}
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}
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writeb(threshold_code,
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/* Save trimming info in order to perform calibration */
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data->base + EXYNOS4_TMU_REG_THRESHOLD_TEMP);
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trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
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data->temp_error1 = trim_info & EXYNOS_TMU_TRIM_TEMP_MASK;
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data->temp_error2 = ((trim_info >> 8) & EXYNOS_TMU_TRIM_TEMP_MASK);
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writeb(pdata->trigger_levels[0],
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if ((EFUSE_MIN_VALUE > data->temp_error1) ||
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data->base + EXYNOS4_TMU_REG_TRIG_LEVEL0);
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(data->temp_error1 > EFUSE_MAX_VALUE) ||
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writeb(pdata->trigger_levels[1],
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(data->temp_error2 != 0))
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data->base + EXYNOS4_TMU_REG_TRIG_LEVEL1);
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data->temp_error1 = pdata->efuse_value;
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writeb(pdata->trigger_levels[2],
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data->base + EXYNOS4_TMU_REG_TRIG_LEVEL2);
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writeb(pdata->trigger_levels[3],
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data->base + EXYNOS4_TMU_REG_TRIG_LEVEL3);
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writel(EXYNOS4_TMU_INTCLEAR_VAL,
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if (data->soc == SOC_ARCH_EXYNOS4210) {
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data->base + EXYNOS4_TMU_REG_INTCLEAR);
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/* Write temperature code for threshold */
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threshold_code = temp_to_code(data, pdata->threshold);
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if (threshold_code < 0) {
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ret = threshold_code;
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goto out;
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}
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writeb(threshold_code,
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data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
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writeb(pdata->trigger_levels[0],
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data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0);
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writeb(pdata->trigger_levels[1],
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data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL1);
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writeb(pdata->trigger_levels[2],
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data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL2);
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writeb(pdata->trigger_levels[3],
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data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL3);
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writel(EXYNOS4210_TMU_INTCLEAR_VAL,
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data->base + EXYNOS_TMU_REG_INTCLEAR);
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} else if (data->soc == SOC_ARCH_EXYNOS) {
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/* Write temperature code for threshold */
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threshold_code = temp_to_code(data, pdata->trigger_levels[0]);
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if (threshold_code < 0) {
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ret = threshold_code;
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goto out;
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}
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rising_threshold = threshold_code;
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threshold_code = temp_to_code(data, pdata->trigger_levels[1]);
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if (threshold_code < 0) {
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ret = threshold_code;
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goto out;
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}
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rising_threshold |= (threshold_code << 8);
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threshold_code = temp_to_code(data, pdata->trigger_levels[2]);
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if (threshold_code < 0) {
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ret = threshold_code;
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goto out;
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}
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rising_threshold |= (threshold_code << 16);
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writel(rising_threshold,
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data->base + EXYNOS_THD_TEMP_RISE);
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writel(0, data->base + EXYNOS_THD_TEMP_FALL);
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writel(EXYNOS_TMU_CLEAR_RISE_INT|EXYNOS_TMU_CLEAR_FALL_INT,
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data->base + EXYNOS_TMU_REG_INTCLEAR);
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}
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out:
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out:
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clk_disable(data->clk);
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clk_disable(data->clk);
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mutex_unlock(&data->lock);
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mutex_unlock(&data->lock);
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@ -188,35 +267,41 @@ out:
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return ret;
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return ret;
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}
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}
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static void exynos4_tmu_control(struct platform_device *pdev, bool on)
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static void exynos_tmu_control(struct platform_device *pdev, bool on)
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{
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{
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struct exynos4_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos4_tmu_platform_data *pdata = data->pdata;
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struct exynos_tmu_platform_data *pdata = data->pdata;
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unsigned int con, interrupt_en;
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unsigned int con, interrupt_en;
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mutex_lock(&data->lock);
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mutex_lock(&data->lock);
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clk_enable(data->clk);
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clk_enable(data->clk);
|
||||||
|
|
||||||
con = pdata->reference_voltage << EXYNOS4_TMU_REF_VOLTAGE_SHIFT |
|
con = pdata->reference_voltage << EXYNOS_TMU_REF_VOLTAGE_SHIFT |
|
||||||
pdata->gain << EXYNOS4_TMU_GAIN_SHIFT;
|
pdata->gain << EXYNOS_TMU_GAIN_SHIFT;
|
||||||
|
|
||||||
|
if (data->soc == SOC_ARCH_EXYNOS) {
|
||||||
|
con |= pdata->noise_cancel_mode << EXYNOS_TMU_TRIP_MODE_SHIFT;
|
||||||
|
con |= (EXYNOS_MUX_ADDR_VALUE << EXYNOS_MUX_ADDR_SHIFT);
|
||||||
|
}
|
||||||
|
|
||||||
if (on) {
|
if (on) {
|
||||||
con |= EXYNOS4_TMU_CORE_ON;
|
con |= EXYNOS_TMU_CORE_ON;
|
||||||
interrupt_en = pdata->trigger_level3_en << 12 |
|
interrupt_en = pdata->trigger_level3_en << 12 |
|
||||||
pdata->trigger_level2_en << 8 |
|
pdata->trigger_level2_en << 8 |
|
||||||
pdata->trigger_level1_en << 4 |
|
pdata->trigger_level1_en << 4 |
|
||||||
pdata->trigger_level0_en;
|
pdata->trigger_level0_en;
|
||||||
} else {
|
} else {
|
||||||
con |= EXYNOS4_TMU_CORE_OFF;
|
con |= EXYNOS_TMU_CORE_OFF;
|
||||||
interrupt_en = 0; /* Disable all interrupts */
|
interrupt_en = 0; /* Disable all interrupts */
|
||||||
}
|
}
|
||||||
writel(interrupt_en, data->base + EXYNOS4_TMU_REG_INTEN);
|
writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN);
|
||||||
writel(con, data->base + EXYNOS4_TMU_REG_CONTROL);
|
writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
|
||||||
|
|
||||||
clk_disable(data->clk);
|
clk_disable(data->clk);
|
||||||
mutex_unlock(&data->lock);
|
mutex_unlock(&data->lock);
|
||||||
}
|
}
|
||||||
|
|
||||||
static int exynos4_tmu_read(struct exynos4_tmu_data *data)
|
static int exynos_tmu_read(struct exynos_tmu_data *data)
|
||||||
{
|
{
|
||||||
u8 temp_code;
|
u8 temp_code;
|
||||||
int temp;
|
int temp;
|
||||||
|
@ -224,7 +309,7 @@ static int exynos4_tmu_read(struct exynos4_tmu_data *data)
|
||||||
mutex_lock(&data->lock);
|
mutex_lock(&data->lock);
|
||||||
clk_enable(data->clk);
|
clk_enable(data->clk);
|
||||||
|
|
||||||
temp_code = readb(data->base + EXYNOS4_TMU_REG_CURRENT_TEMP);
|
temp_code = readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
|
||||||
temp = code_to_temp(data, temp_code);
|
temp = code_to_temp(data, temp_code);
|
||||||
|
|
||||||
clk_disable(data->clk);
|
clk_disable(data->clk);
|
||||||
|
@ -233,25 +318,30 @@ static int exynos4_tmu_read(struct exynos4_tmu_data *data)
|
||||||
return temp;
|
return temp;
|
||||||
}
|
}
|
||||||
|
|
||||||
static void exynos4_tmu_work(struct work_struct *work)
|
static void exynos_tmu_work(struct work_struct *work)
|
||||||
{
|
{
|
||||||
struct exynos4_tmu_data *data = container_of(work,
|
struct exynos_tmu_data *data = container_of(work,
|
||||||
struct exynos4_tmu_data, irq_work);
|
struct exynos_tmu_data, irq_work);
|
||||||
|
|
||||||
mutex_lock(&data->lock);
|
mutex_lock(&data->lock);
|
||||||
clk_enable(data->clk);
|
clk_enable(data->clk);
|
||||||
|
|
||||||
writel(EXYNOS4_TMU_INTCLEAR_VAL, data->base + EXYNOS4_TMU_REG_INTCLEAR);
|
|
||||||
|
|
||||||
enable_irq(data->irq);
|
if (data->soc == SOC_ARCH_EXYNOS)
|
||||||
|
writel(EXYNOS_TMU_CLEAR_RISE_INT,
|
||||||
|
data->base + EXYNOS_TMU_REG_INTCLEAR);
|
||||||
|
else
|
||||||
|
writel(EXYNOS4210_TMU_INTCLEAR_VAL,
|
||||||
|
data->base + EXYNOS_TMU_REG_INTCLEAR);
|
||||||
|
|
||||||
clk_disable(data->clk);
|
clk_disable(data->clk);
|
||||||
mutex_unlock(&data->lock);
|
mutex_unlock(&data->lock);
|
||||||
|
enable_irq(data->irq);
|
||||||
}
|
}
|
||||||
|
|
||||||
static irqreturn_t exynos4_tmu_irq(int irq, void *id)
|
static irqreturn_t exynos_tmu_irq(int irq, void *id)
|
||||||
{
|
{
|
||||||
struct exynos4_tmu_data *data = id;
|
struct exynos_tmu_data *data = id;
|
||||||
|
|
||||||
disable_irq_nosync(irq);
|
disable_irq_nosync(irq);
|
||||||
schedule_work(&data->irq_work);
|
schedule_work(&data->irq_work);
|
||||||
|
@ -259,18 +349,17 @@ static irqreturn_t exynos4_tmu_irq(int irq, void *id)
|
||||||
return IRQ_HANDLED;
|
return IRQ_HANDLED;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int __devinit exynos4_tmu_probe(struct platform_device *pdev)
|
static int __devinit exynos_tmu_probe(struct platform_device *pdev)
|
||||||
{
|
{
|
||||||
struct exynos4_tmu_data *data;
|
struct exynos_tmu_data *data;
|
||||||
struct exynos4_tmu_platform_data *pdata = pdev->dev.platform_data;
|
struct exynos_tmu_platform_data *pdata = pdev->dev.platform_data;
|
||||||
int ret;
|
int ret;
|
||||||
|
|
||||||
if (!pdata) {
|
if (!pdata) {
|
||||||
dev_err(&pdev->dev, "No platform init data supplied.\n");
|
dev_err(&pdev->dev, "No platform init data supplied.\n");
|
||||||
return -ENODEV;
|
return -ENODEV;
|
||||||
}
|
}
|
||||||
|
data = kzalloc(sizeof(struct exynos_tmu_data), GFP_KERNEL);
|
||||||
data = kzalloc(sizeof(struct exynos4_tmu_data), GFP_KERNEL);
|
|
||||||
if (!data) {
|
if (!data) {
|
||||||
dev_err(&pdev->dev, "Failed to allocate driver structure\n");
|
dev_err(&pdev->dev, "Failed to allocate driver structure\n");
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
@ -283,7 +372,7 @@ static int __devinit exynos4_tmu_probe(struct platform_device *pdev)
|
||||||
goto err_free;
|
goto err_free;
|
||||||
}
|
}
|
||||||
|
|
||||||
INIT_WORK(&data->irq_work, exynos4_tmu_work);
|
INIT_WORK(&data->irq_work, exynos_tmu_work);
|
||||||
|
|
||||||
data->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
data->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||||
if (!data->mem) {
|
if (!data->mem) {
|
||||||
|
@ -307,9 +396,8 @@ static int __devinit exynos4_tmu_probe(struct platform_device *pdev)
|
||||||
goto err_mem_region;
|
goto err_mem_region;
|
||||||
}
|
}
|
||||||
|
|
||||||
ret = request_irq(data->irq, exynos4_tmu_irq,
|
ret = request_irq(data->irq, exynos_tmu_irq,
|
||||||
IRQF_TRIGGER_RISING,
|
IRQF_TRIGGER_RISING, "exynos-tmu", data);
|
||||||
"exynos4-tmu", data);
|
|
||||||
if (ret) {
|
if (ret) {
|
||||||
dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq);
|
dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq);
|
||||||
goto err_io_remap;
|
goto err_io_remap;
|
||||||
|
@ -322,17 +410,26 @@ static int __devinit exynos4_tmu_probe(struct platform_device *pdev)
|
||||||
goto err_irq;
|
goto err_irq;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
if (pdata->type == SOC_ARCH_EXYNOS ||
|
||||||
|
pdata->type == SOC_ARCH_EXYNOS4210)
|
||||||
|
data->soc = pdata->type;
|
||||||
|
else {
|
||||||
|
ret = -EINVAL;
|
||||||
|
dev_err(&pdev->dev, "Platform not supported\n");
|
||||||
|
goto err_clk;
|
||||||
|
}
|
||||||
|
|
||||||
data->pdata = pdata;
|
data->pdata = pdata;
|
||||||
platform_set_drvdata(pdev, data);
|
platform_set_drvdata(pdev, data);
|
||||||
mutex_init(&data->lock);
|
mutex_init(&data->lock);
|
||||||
|
|
||||||
ret = exynos4_tmu_initialize(pdev);
|
ret = exynos_tmu_initialize(pdev);
|
||||||
if (ret) {
|
if (ret) {
|
||||||
dev_err(&pdev->dev, "Failed to initialize TMU\n");
|
dev_err(&pdev->dev, "Failed to initialize TMU\n");
|
||||||
goto err_clk;
|
goto err_clk;
|
||||||
}
|
}
|
||||||
|
|
||||||
exynos4_tmu_control(pdev, true);
|
exynos_tmu_control(pdev, true);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
err_clk:
|
err_clk:
|
||||||
|
@ -350,11 +447,11 @@ err_free:
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int __devexit exynos4_tmu_remove(struct platform_device *pdev)
|
static int __devexit exynos_tmu_remove(struct platform_device *pdev)
|
||||||
{
|
{
|
||||||
struct exynos4_tmu_data *data = platform_get_drvdata(pdev);
|
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||||
|
|
||||||
exynos4_tmu_control(pdev, false);
|
exynos_tmu_control(pdev, false);
|
||||||
|
|
||||||
clk_put(data->clk);
|
clk_put(data->clk);
|
||||||
|
|
||||||
|
@ -371,43 +468,43 @@ static int __devexit exynos4_tmu_remove(struct platform_device *pdev)
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef CONFIG_PM_SLEEP
|
#ifdef CONFIG_PM_SLEEP
|
||||||
static int exynos4_tmu_suspend(struct device *dev)
|
static int exynos_tmu_suspend(struct device *dev)
|
||||||
{
|
{
|
||||||
exynos4_tmu_control(to_platform_device(dev), false);
|
exynos_tmu_control(to_platform_device(dev), false);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int exynos4_tmu_resume(struct device *dev)
|
static int exynos_tmu_resume(struct device *dev)
|
||||||
{
|
{
|
||||||
struct platform_device *pdev = to_platform_device(dev);
|
struct platform_device *pdev = to_platform_device(dev);
|
||||||
|
|
||||||
exynos4_tmu_initialize(pdev);
|
exynos_tmu_initialize(pdev);
|
||||||
exynos4_tmu_control(pdev, true);
|
exynos_tmu_control(pdev, true);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
static SIMPLE_DEV_PM_OPS(exynos4_tmu_pm,
|
static SIMPLE_DEV_PM_OPS(exynos_tmu_pm,
|
||||||
exynos4_tmu_suspend, exynos4_tmu_resume);
|
exynos_tmu_suspend, exynos_tmu_resume);
|
||||||
#define EXYNOS4_TMU_PM (&exynos4_tmu_pm)
|
#define EXYNOS_TMU_PM (&exynos_tmu_pm)
|
||||||
#else
|
#else
|
||||||
#define EXYNOS4_TMU_PM NULL
|
#define EXYNOS_TMU_PM NULL
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
static struct platform_driver exynos4_tmu_driver = {
|
static struct platform_driver exynos_tmu_driver = {
|
||||||
.driver = {
|
.driver = {
|
||||||
.name = "exynos4-tmu",
|
.name = "exynos-tmu",
|
||||||
.owner = THIS_MODULE,
|
.owner = THIS_MODULE,
|
||||||
.pm = EXYNOS4_TMU_PM,
|
.pm = EXYNOS_TMU_PM,
|
||||||
},
|
},
|
||||||
.probe = exynos4_tmu_probe,
|
.probe = exynos_tmu_probe,
|
||||||
.remove = __devexit_p(exynos4_tmu_remove),
|
.remove = __devexit_p(exynos_tmu_remove),
|
||||||
};
|
};
|
||||||
|
|
||||||
module_platform_driver(exynos4_tmu_driver);
|
module_platform_driver(exynos_tmu_driver);
|
||||||
|
|
||||||
MODULE_DESCRIPTION("EXYNOS4 TMU Driver");
|
MODULE_DESCRIPTION("EXYNOS TMU Driver");
|
||||||
MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
|
MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
|
||||||
MODULE_LICENSE("GPL");
|
MODULE_LICENSE("GPL");
|
||||||
MODULE_ALIAS("platform:exynos4-tmu");
|
MODULE_ALIAS("platform:exynos-tmu");
|
||||||
|
|
|
@ -1,5 +1,5 @@
|
||||||
/*
|
/*
|
||||||
* exynos_thermal.h - Samsung EXYNOS4 TMU (Thermal Management Unit)
|
* exynos_thermal.h - Samsung EXYNOS TMU (Thermal Management Unit)
|
||||||
*
|
*
|
||||||
* Copyright (C) 2011 Samsung Electronics
|
* Copyright (C) 2011 Samsung Electronics
|
||||||
* Donggeun Kim <dg77.kim@samsung.com>
|
* Donggeun Kim <dg77.kim@samsung.com>
|
||||||
|
@ -28,8 +28,12 @@ enum calibration_type {
|
||||||
TYPE_NONE,
|
TYPE_NONE,
|
||||||
};
|
};
|
||||||
|
|
||||||
|
enum soc_type {
|
||||||
|
SOC_ARCH_EXYNOS4210 = 1,
|
||||||
|
SOC_ARCH_EXYNOS,
|
||||||
|
};
|
||||||
/**
|
/**
|
||||||
* struct exynos4_tmu_platform_data
|
* struct exynos_tmu_platform_data
|
||||||
* @threshold: basic temperature for generating interrupt
|
* @threshold: basic temperature for generating interrupt
|
||||||
* 25 <= threshold <= 125 [unit: degree Celsius]
|
* 25 <= threshold <= 125 [unit: degree Celsius]
|
||||||
* @trigger_levels: array for each interrupt levels
|
* @trigger_levels: array for each interrupt levels
|
||||||
|
@ -63,11 +67,15 @@ enum calibration_type {
|
||||||
* @reference_voltage: reference voltage of amplifier
|
* @reference_voltage: reference voltage of amplifier
|
||||||
* in the positive-TC generator block
|
* in the positive-TC generator block
|
||||||
* 0 <= reference_voltage <= 31
|
* 0 <= reference_voltage <= 31
|
||||||
|
* @noise_cancel_mode: noise cancellation mode
|
||||||
|
* 000, 100, 101, 110 and 111 can be different modes
|
||||||
|
* @type: determines the type of SOC
|
||||||
|
* @efuse_value: platform defined fuse value
|
||||||
* @cal_type: calibration type for temperature
|
* @cal_type: calibration type for temperature
|
||||||
*
|
*
|
||||||
* This structure is required for configuration of exynos4_tmu driver.
|
* This structure is required for configuration of exynos_tmu driver.
|
||||||
*/
|
*/
|
||||||
struct exynos4_tmu_platform_data {
|
struct exynos_tmu_platform_data {
|
||||||
u8 threshold;
|
u8 threshold;
|
||||||
u8 trigger_levels[4];
|
u8 trigger_levels[4];
|
||||||
bool trigger_level0_en;
|
bool trigger_level0_en;
|
||||||
|
@ -77,7 +85,10 @@ struct exynos4_tmu_platform_data {
|
||||||
|
|
||||||
u8 gain;
|
u8 gain;
|
||||||
u8 reference_voltage;
|
u8 reference_voltage;
|
||||||
|
u8 noise_cancel_mode;
|
||||||
|
u32 efuse_value;
|
||||||
|
|
||||||
enum calibration_type cal_type;
|
enum calibration_type cal_type;
|
||||||
|
enum soc_type type;
|
||||||
};
|
};
|
||||||
#endif /* _LINUX_EXYNOS_THERMAL_H */
|
#endif /* _LINUX_EXYNOS_THERMAL_H */
|
||||||
|
|
Loading…
Reference in New Issue