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Commit 3ad9524a authored by Amit Daniel Kachhap's avatar Amit Daniel Kachhap Committed by Zhang Rui
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thermal: exynos: Miscellaneous fixes to support falling threshold interrupt 



Below fixes are done to support falling threshold interrupt,
* Falling interrupt status macro corrected according to exynos5 data sheet.
* The get trend function modified to calculate trip temperature correctly.
* The clearing of interrupt status in the isr is now done after handling
  the event that caused the interrupt.

Signed-off-by: default avatarAmit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent d6d71ee4

drivers/thermal/exynos_thermal.c

+11 −6
Original line number Diff line number Diff line
@@ -82,7 +82,7 @@ 


#define EXYNOS_TRIMINFO_RELOAD		0x1

#define EXYNOS_TMU_CLEAR_RISE_INT	0x111

#define EXYNOS_TMU_CLEAR_FALL_INT	(0x111 << 16)

#define EXYNOS_TMU_CLEAR_FALL_INT	(0x111 << 12)

#define EXYNOS_MUX_ADDR_VALUE		6

#define EXYNOS_MUX_ADDR_SHIFT		20

#define EXYNOS_TMU_TRIP_MODE_SHIFT	13
@@ -370,7 +370,14 @@ static int exynos_get_temp(struct thermal_zone_device *thermal, 
static int exynos_get_trend(struct thermal_zone_device *thermal,

			int trip, enum thermal_trend *trend)

{

	if (thermal->temperature >= trip)

	int ret;

	unsigned long trip_temp;



	ret = exynos_get_trip_temp(thermal, trip, &trip_temp);

	if (ret < 0)

		return ret;



	if (thermal->temperature >= trip_temp)

		*trend = THERMAL_TREND_RAISING;

	else

		*trend = THERMAL_TREND_DROPPING;
@@ -705,20 +712,18 @@ static void exynos_tmu_work(struct work_struct *work) 
	struct exynos_tmu_data *data = container_of(work,

			struct exynos_tmu_data, irq_work);



	exynos_report_trigger();

	mutex_lock(&data->lock);

	clk_enable(data->clk);





	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);

	mutex_unlock(&data->lock);

	exynos_report_trigger();



	enable_irq(data->irq);

}