write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/extcon/extcon-sm5502.c
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@@ -1,13 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * extcon-sm5502.c - Silicon Mitus SM5502 extcon drvier to support USB switches
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  *
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  * Copyright (c) 2014 Samsung Electronics Co., Ltd
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  * Author: Chanwoo Choi <cw00.choi@samsung.com>
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- *
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- * This program is free software; you can redistribute  it and/or modify it
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- * under  the terms of  the GNU General  Public License as published by the
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- * Free Software Foundation;  either version 2 of the  License, or (at your
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- * option) any later version.
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  */
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 #include <linux/err.h>
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@@ -252,7 +248,7 @@
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 		dev_err(info->dev, "Unknown DM_CON/DP_CON switch type (%d)\n",
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 				con_sw);
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 		return -EINVAL;
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-	};
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+	}
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 	switch (vbus_sw) {
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 	case VBUSIN_SWITCH_OPEN:
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@@ -271,7 +267,7 @@
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 	default:
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 		dev_err(info->dev, "Unknown VBUS switch type (%d)\n", vbus_sw);
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 		return -EINVAL;
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-	};
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+	}
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 	return 0;
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 }
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@@ -279,7 +275,7 @@
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 /* Return cable type of attached or detached accessories */
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 static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info)
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 {
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-	unsigned int cable_type = -1, adc, dev_type1;
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+	unsigned int cable_type, adc, dev_type1;
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 	int ret;
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 	/* Read ADC value according to external cable or button */
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@@ -360,13 +356,13 @@
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 				"cannot identify the cable type: adc(0x%x)\n",
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 				adc);
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 			return -EINVAL;
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-		};
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+		}
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 		break;
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 	default:
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 		dev_err(info->dev,
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 			"failed to identify the cable type: adc(0x%x)\n", adc);
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 		return -EINVAL;
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-	};
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+	}
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 	return cable_type;
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 }
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@@ -408,7 +404,7 @@
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 		dev_dbg(info->dev,
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 			"cannot handle this cable_type (0x%x)\n", cable_type);
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 		return 0;
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-	};
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+	}
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 	/* Change internal hardware path(DM_CON/DP_CON, VBUSIN) */
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 	ret = sm5502_muic_set_path(info, con_sw, vbus_sw, attached);
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@@ -604,7 +600,7 @@
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 		ret = devm_request_threaded_irq(info->dev, virq, NULL,
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 						sm5502_muic_irq_handler,
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-						IRQF_NO_SUSPEND,
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+						IRQF_NO_SUSPEND | IRQF_ONESHOT,
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 						muic_irq->name, info);
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 		if (ret) {
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 			dev_err(info->dev,