extcon: ptn5150: Use generic "interrupts" property

Interrupts do not have to be always GPIO based so instead of expecting
"int-gpios" property and converting the GPIO to an interrupt, just
accept any interrupt via generic "interrupts" property.

Keep support for old "int-gpios" for backward compatibility.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/drivers/extcon/extcon-ptn5150.c b/drivers/extcon/extcon-ptn5150.c
index 5f52527..12e52dd 100644 (file)
--- a/drivers/extcon/extcon-ptn5150.c
+++ b/drivers/extcon/extcon-ptn5150.c
@@ -239,11 +239,6 @@ static int ptn5150_i2c_probe(struct i2c_client *i2c,
 
        info->dev = &i2c->dev;
        info->i2c = i2c;
-       info->int_gpiod = devm_gpiod_get(&i2c->dev, "int", GPIOD_IN);
-       if (IS_ERR(info->int_gpiod)) {
-               dev_err(dev, "failed to get INT GPIO\n");
-               return PTR_ERR(info->int_gpiod);
-       }
        info->vbus_gpiod = devm_gpiod_get(&i2c->dev, "vbus", GPIOD_IN);
        if (IS_ERR(info->vbus_gpiod)) {
                dev_err(dev, "failed to get VBUS GPIO\n");
@@ -267,22 +262,30 @@ static int ptn5150_i2c_probe(struct i2c_client *i2c,
                return ret;
        }
 
-       if (info->int_gpiod) {
+       if (i2c->irq > 0) {
+               info->irq = i2c->irq;
+       } else {
+               info->int_gpiod = devm_gpiod_get(&i2c->dev, "int", GPIOD_IN);
+               if (IS_ERR(info->int_gpiod)) {
+                       dev_err(dev, "failed to get INT GPIO\n");
+                       return PTR_ERR(info->int_gpiod);
+               }
+
                info->irq = gpiod_to_irq(info->int_gpiod);
                if (info->irq < 0) {
                        dev_err(dev, "failed to get INTB IRQ\n");
                        return info->irq;
                }
+       }
 
-               ret = devm_request_threaded_irq(dev, info->irq, NULL,
-                                               ptn5150_irq_handler,
-                                               IRQF_TRIGGER_FALLING |
-                                               IRQF_ONESHOT,
-                                               i2c->name, info);
-               if (ret < 0) {
-                       dev_err(dev, "failed to request handler for INTB IRQ\n");
-                       return ret;
-               }
+       ret = devm_request_threaded_irq(dev, info->irq, NULL,
+                                       ptn5150_irq_handler,
+                                       IRQF_TRIGGER_FALLING |
+                                       IRQF_ONESHOT,
+                                       i2c->name, info);
+       if (ret < 0) {
+               dev_err(dev, "failed to request handler for INTB IRQ\n");
+               return ret;
        }
 
        /* Allocate extcon device */