add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/mfd/max14577.c
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@@ -1,22 +1,12 @@
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-/*
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- * max14577.c - mfd core driver for the Maxim 14577/77836
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- *
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- * Copyright (C) 2014 Samsung Electronics
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- * Chanwoo Choi <cw00.choi@samsung.com>
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- * Krzysztof Kozlowski <krzk@kernel.org>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * This driver is based on max8997.c
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- */
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+// SPDX-License-Identifier: GPL-2.0+
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+//
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+// max14577.c - mfd core driver for the Maxim 14577/77836
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+//
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+// Copyright (C) 2014 Samsung Electronics
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+// Chanwoo Choi <cw00.choi@samsung.com>
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+// Krzysztof Kozlowski <krzk@kernel.org>
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+//
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+// This driver is based on max8997.c
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 #include <linux/err.h>
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 #include <linux/module.h>
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@@ -71,7 +61,7 @@
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 int maxim_charger_calc_reg_current(const struct maxim_charger_current *limits,
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 		unsigned int min_ua, unsigned int max_ua, u8 *dst)
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 {
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-	unsigned int current_bits = 0xf;
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+	unsigned int current_bits;
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 	if (min_ua > max_ua)
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 		return -EINVAL;
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@@ -307,11 +297,11 @@
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 	int ret;
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 	u8 intsrc_mask;
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-	max14577->i2c_pmic = i2c_new_dummy(max14577->i2c->adapter,
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+	max14577->i2c_pmic = i2c_new_dummy_device(max14577->i2c->adapter,
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 			I2C_ADDR_PMIC);
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-	if (!max14577->i2c_pmic) {
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+	if (IS_ERR(max14577->i2c_pmic)) {
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 		dev_err(max14577->dev, "Failed to register PMIC I2C device\n");
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-		return -ENODEV;
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+		return PTR_ERR(max14577->i2c_pmic);
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 	}
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 	i2c_set_clientdata(max14577->i2c_pmic, max14577);
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