power: supply: max77705_charger: rework interrupts

Current implementation uses handle_post_irq to actually handle chgin
irq. This is not how things are meant to work in regmap-irq.

Remove handle_post_irq, and request a threaded interrupt for chgin.

Fixes: a6a494c ("power: supply: max77705: Add charger driver for Maxim 77705")
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

Author: Dzmitry Sankouski

drivers/power/supply/max77705_charger.c

@@ -40,13 +40,13 @@ static enum power_supply_property max77705_charger_props[] = {
 	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
 };
 
-static int max77705_chgin_irq(void *irq_drv_data)
+static irqreturn_t max77705_chgin_irq(int irq, void *irq_drv_data)
 {
 	struct max77705_charger_data *chg = irq_drv_data;
 
 	queue_work(chg->wqueue, &chg->chgin_work);
 
-	return 0;
+	return IRQ_HANDLED;
 }
 
 static const struct regmap_irq max77705_charger_irqs[] = {
@@ -64,7 +64,6 @@ static struct regmap_irq_chip max77705_charger_irq_chip = {
 	.name			= "max77705-charger",
 	.status_base		= MAX77705_CHG_REG_INT,
 	.mask_base		= MAX77705_CHG_REG_INT_MASK,
-	.handle_post_irq	= max77705_chgin_irq,
 	.num_regs		= 1,
 	.irqs			= max77705_charger_irqs,
 	.num_irqs		= ARRAY_SIZE(max77705_charger_irqs),
@@ -593,12 +592,6 @@ static int max77705_charger_probe(struct i2c_client *i2c)
 					     "cannot allocate regmap field\n");
 	}
 
-	ret = regmap_update_bits(chg->regmap,
-				MAX77705_CHG_REG_INT_MASK,
-				MAX77705_CHGIN_IM, 0);
-	if (ret)
-		return ret;
-
 	pscfg.fwnode = dev_fwnode(dev);
 	pscfg.drv_data = chg;
 
@@ -608,7 +601,7 @@ static int max77705_charger_probe(struct i2c_client *i2c)
 
 	max77705_charger_irq_chip.irq_drv_data = chg;
 	ret = devm_regmap_add_irq_chip(chg->dev, chg->regmap, i2c->irq,
-					IRQF_ONESHOT | IRQF_SHARED, 0,
+					IRQF_ONESHOT, 0,
 					&max77705_charger_irq_chip,
 					&irq_data);
 	if (ret)
@@ -630,6 +623,15 @@ static int max77705_charger_probe(struct i2c_client *i2c)
 		goto destroy_wq;
 	}
 
+	ret = devm_request_threaded_irq(dev, regmap_irq_get_virq(irq_data, MAX77705_CHGIN_I),
+					NULL, max77705_chgin_irq,
+					IRQF_TRIGGER_NONE,
+					"chgin-irq", chg);
+	if (ret) {
+		dev_err_probe(dev, ret, "Failed to Request chgin IRQ\n");
+		goto destroy_wq;
+	}
+
 	ret = max77705_charger_enable(chg);
 	if (ret) {
 		dev_err_probe(dev, ret, "failed to enable charge\n");