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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: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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1 changed files with 11 additions and 6 deletions
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@ -82,7 +82,7 @@
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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_TMU_CLEAR_FALL_INT (0x111 << 12)
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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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@ -370,7 +370,14 @@ static int exynos_get_temp(struct thermal_zone_device *thermal,
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static int exynos_get_trend(struct thermal_zone_device *thermal,
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int trip, enum thermal_trend *trend)
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{
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if (thermal->temperature >= trip)
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int ret;
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unsigned long trip_temp;
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ret = exynos_get_trip_temp(thermal, trip, &trip_temp);
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if (ret < 0)
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return ret;
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if (thermal->temperature >= trip_temp)
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*trend = THERMAL_TREND_RAISING;
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else
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*trend = THERMAL_TREND_DROPPING;
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@ -705,20 +712,18 @@ static void exynos_tmu_work(struct work_struct *work)
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struct exynos_tmu_data *data = container_of(work,
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struct exynos_tmu_data, irq_work);
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exynos_report_trigger();
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mutex_lock(&data->lock);
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clk_enable(data->clk);
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if (data->soc == SOC_ARCH_EXYNOS)
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writel(EXYNOS_TMU_CLEAR_RISE_INT,
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data->base + EXYNOS_TMU_REG_INTCLEAR);
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else
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writel(EXYNOS4210_TMU_INTCLEAR_VAL,
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data->base + EXYNOS_TMU_REG_INTCLEAR);
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clk_disable(data->clk);
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mutex_unlock(&data->lock);
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exynos_report_trigger();
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enable_irq(data->irq);
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}
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