add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/mfd/88pm860x-core.c
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@@ -1,13 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Base driver for Marvell 88PM8607
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  *
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  * Copyright (C) 2009 Marvell International Ltd.
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  *
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  * Author: Haojian Zhuang <haojian.zhuang@marvell.com>
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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 version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/kernel.h>
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@@ -1181,12 +1178,12 @@
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 	 */
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 	if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
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 		chip->companion_addr = pdata->companion_addr;
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-		chip->companion = i2c_new_dummy(chip->client->adapter,
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+		chip->companion = i2c_new_dummy_device(chip->client->adapter,
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 						chip->companion_addr);
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-		if (!chip->companion) {
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+		if (IS_ERR(chip->companion)) {
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 			dev_err(&client->dev,
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 				"Failed to allocate I2C companion device\n");
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-			return -ENODEV;
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+			return PTR_ERR(chip->companion);
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 		}
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 		chip->regmap_companion = regmap_init_i2c(chip->companion,
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 							&pm860x_regmap_config);