[PATCH V6 12/30] thermal: exynos: Fix to clear only the generated interrupts

[Amit Daniel Kachhap]

This patch uses the TMU status register to know the generated interrupts
and only clear them in the interrupt handler.

Acked-by: Kukjin Kim <kgene....@samsung.com>
Acked-by: Jonghwa Lee <jonghwa3....@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.dan...@samsung.com>
---
 drivers/thermal/samsung/exynos_tmu.c      |   11 +++++------
 drivers/thermal/samsung/exynos_tmu_data.c |    2 ++
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c 
b/drivers/thermal/samsung/exynos_tmu.c
index 33f494e..f6f63ca 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -351,17 +351,16 @@ static void exynos_tmu_work(struct work_struct *work)
                        struct exynos_tmu_data, irq_work);
        struct exynos_tmu_platform_data *pdata = data->pdata;
        const struct exynos_tmu_registers *reg = pdata->registers;
+       unsigned int val_irq;
 
        exynos_report_trigger();
        mutex_lock(&data->lock);
        clk_enable(data->clk);
 
-       if (data->soc == SOC_ARCH_EXYNOS)
-               writel((reg->inten_rise_mask << reg->inten_rise_shift) |
-                       (reg->inten_fall_mask << reg->inten_fall_shift),
-                               data->base + reg->tmu_intclear);
-       else
-               writel(reg->inten_rise_mask, data->base + reg->tmu_intclear);
+       /* TODO: take action based on particular interrupt */
+       val_irq = readl(data->base + reg->tmu_intstat);
+       /* clear the interrupts */
+       writel(val_irq, data->base + reg->tmu_intclear);
 
        clk_disable(data->clk);
        mutex_unlock(&data->lock);
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c 
b/drivers/thermal/samsung/exynos_tmu_data.c
index e7cb1cc..7fcf183 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -45,6 +45,7 @@ static const struct exynos_tmu_registers 
exynos4210_tmu_registers = {
        .inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
        .inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
        .inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
+       .tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
        .tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
 };
 struct exynos_tmu_platform_data const exynos4210_default_tmu_data = {
@@ -112,6 +113,7 @@ static const struct exynos_tmu_registers 
exynos5250_tmu_registers = {
        .inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
        .inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
        .inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
+       .tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
        .tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
        .emul_con = EXYNOS_EMUL_CON,
        .emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
-- 
1.7.1

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