thermal: exynos: Fix to clear only the generated interrupts

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.kim@samsung.com>
Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>

2 files changed, 7 insertions, 6 deletions

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 33f494ea1ed1..f6f63ca6faf3 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 6cac39310881..217b8f522d32 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,