Update extcon for v5.8

Detailed description for this pull request:
 1. Update extcon provider driver
 - Fix an error handling code by using devm_iio_channel_get() for extcon-adc-jac.c
 - Fix the usage counter imbalance of runtime PM for extcon-arizona.c.
 - Add proper dt-compatible string for extcon-max14577.c.
 
 2. Update extcon core with minor updates:
 - Remove unneeded initialization of local variable in extcon_register_notifier
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Merge tag 'extcon-next-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Chanwoo writes:

Update extcon for v5.8

Detailed description for this pull request:
1. Update extcon provider driver
- Fix an error handling code by using devm_iio_channel_get() for extcon-adc-jac.c
- Fix the usage counter imbalance of runtime PM for extcon-arizona.c.
- Add proper dt-compatible string for extcon-max14577.c.

2. Update extcon core with minor updates:
- Remove unneeded initialization of local variable in extcon_register_notifier

* tag 'extcon-next-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon:
  extcon: arizona: Fix runtime PM imbalance on error
  extcon: max14577: Add proper dt-compatible strings
  extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'
  extcon: remove redundant assignment to variable idx

drivers/extcon/extcon-adc-jack.c

@@ -124,7 +124,7 @@ static int adc_jack_probe(struct platform_device *pdev)
 	for (i = 0; data->adc_conditions[i].id != EXTCON_NONE; i++);
 	data->num_conditions = i;
 
-	data->chan = iio_channel_get(&pdev->dev, pdata->consumer_channel);
+	data->chan = devm_iio_channel_get(&pdev->dev, pdata->consumer_channel);
 	if (IS_ERR(data->chan))
 		return PTR_ERR(data->chan);
 
@@ -164,7 +164,6 @@ static int adc_jack_remove(struct platform_device *pdev)
 
 	free_irq(data->irq, data);
 	cancel_work_sync(&data->handler.work);
-	iio_channel_release(data->chan);
 
 	return 0;
 }

drivers/extcon/extcon-arizona.c

@@ -1460,7 +1460,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 	if (!info->input) {
 		dev_err(arizona->dev, "Can't allocate input dev\n");
 		ret = -ENOMEM;
-		goto err_register;
+		return ret;
 	}
 
 	info->input->name = "Headset";
@@ -1492,7 +1492,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 		if (ret != 0) {
 			dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
 				pdata->micd_pol_gpio, ret);
-			goto err_register;
+			return ret;
 		}
 
 		info->micd_pol_gpio = gpio_to_desc(pdata->micd_pol_gpio);
@@ -1515,7 +1515,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 			dev_err(arizona->dev,
 				"Failed to get microphone polarity GPIO: %d\n",
 				ret);
-			goto err_register;
+			return ret;
 		}
 	}
 
@@ -1672,7 +1672,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
 			ret);
-		goto err_gpio;
+		goto err_pm;
 	}
 
 	ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1);
@@ -1721,14 +1721,14 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 		dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n",
 			 ret);
 
-	pm_runtime_put(&pdev->dev);
-
 	ret = input_register_device(info->input);
 	if (ret) {
 		dev_err(&pdev->dev, "Can't register input device: %d\n", ret);
 		goto err_hpdet;
 	}
 
+	pm_runtime_put(&pdev->dev);
+
 	return 0;
 
 err_hpdet:
@@ -1743,10 +1743,11 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 	arizona_set_irq_wake(arizona, jack_irq_rise, 0);
 err_rise:
 	arizona_free_irq(arizona, jack_irq_rise, info);
+err_pm:
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 err_gpio:
 	gpiod_put(info->micd_pol_gpio);
-err_register:
-	pm_runtime_disable(&pdev->dev);
 	return ret;
 }
 

drivers/extcon/extcon-max14577.c

@@ -782,9 +782,19 @@ static const struct platform_device_id max14577_muic_id[] = {
 };
 MODULE_DEVICE_TABLE(platform, max14577_muic_id);
 
+static const struct of_device_id of_max14577_muic_dt_match[] = {
+	{ .compatible = "maxim,max14577-muic",
+	  .data = (void *)MAXIM_DEVICE_TYPE_MAX14577, },
+	{ .compatible = "maxim,max77836-muic",
+	  .data = (void *)MAXIM_DEVICE_TYPE_MAX77836, },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, of_max14577_muic_dt_match);
+
 static struct platform_driver max14577_muic_driver = {
 	.driver		= {
 		.name	= "max14577-muic",
+		.of_match_table = of_max14577_muic_dt_match,
 	},
 	.probe		= max14577_muic_probe,
 	.remove		= max14577_muic_remove,

drivers/extcon/extcon.c

@@ -900,7 +900,7 @@ int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
 			     struct notifier_block *nb)
 {
 	unsigned long flags;
-	int ret, idx = -EINVAL;
+	int ret, idx;
 
 	if (!edev || !nb)
 		return -EINVAL;