mfd: mt6360: Remove handle_post_irq callback function

Remove handle_post_irq which is used to retrigger IRQ.
Set IRQ level low trigger in dtsi to keep IRQ always be handled.
Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/mt6360-core.c

@@ -209,15 +209,8 @@ static const struct regmap_irq mt6360_irqs[] =  {
 	REGMAP_IRQ_REG_LINE(MT6360_LDO7_PGB_EVT, 8),
 };
 
-static int mt6360_pmu_handle_post_irq(void *irq_drv_data)
-{
-	struct mt6360_ddata *ddata = irq_drv_data;
-
-	return regmap_update_bits(ddata->regmap,
-		MT6360_PMU_IRQ_SET, MT6360_IRQ_RETRIG, MT6360_IRQ_RETRIG);
-}
-
-static struct regmap_irq_chip mt6360_irq_chip = {
+static const struct regmap_irq_chip mt6360_irq_chip = {
+	.name = "mt6360_irqs",
 	.irqs = mt6360_irqs,
 	.num_irqs = ARRAY_SIZE(mt6360_irqs),
 	.num_regs = MT6360_PMU_IRQ_REGNUM,
@@ -226,7 +219,6 @@ static struct regmap_irq_chip mt6360_irq_chip = {
 	.ack_base = MT6360_PMU_CHG_IRQ1,
 	.init_ack_masked = true,
 	.use_ack = true,
-	.handle_post_irq = mt6360_pmu_handle_post_irq,
 };
 
 static const struct regmap_config mt6360_pmu_regmap_config = {
@@ -339,10 +331,9 @@ static int mt6360_probe(struct i2c_client *client)
 		return -ENODEV;
 	}
 
-	mt6360_irq_chip.irq_drv_data = ddata;
 	ret = devm_regmap_add_irq_chip(&client->dev, ddata->regmap, client->irq,
-				       IRQF_TRIGGER_FALLING, 0,
-				       &mt6360_irq_chip, &ddata->irq_data);
+				       0, 0, &mt6360_irq_chip,
+				       &ddata->irq_data);
 	if (ret) {
 		dev_err(&client->dev, "Failed to add Regmap IRQ Chip\n");
 		return ret;

include/linux/mfd/mt6360.h

@@ -230,7 +230,7 @@ struct mt6360_ddata {
 #define MT6360_PMU_MAXREG			MT6360_PMU_LDO_MASK2
 
 /* MT6360_PMU_IRQ_SET */
-#define MT6360_PMU_IRQ_REGNUM	(MT6360_PMU_LDO_IRQ2 - MT6360_PMU_CHG_IRQ1 + 1)
+#define MT6360_PMU_IRQ_REGNUM	16
 #define MT6360_IRQ_RETRIG	BIT(2)
 
 #define CHIP_VEN_MASK				0xF0