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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/drivers/rtc/rtc-fm3130.c
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@@ -1,12 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * rtc-fm3130.c - RTC driver for Ramtron FM3130 I2C chip.
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  *
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  *  Copyright (C) 2008 Sergey Lapin
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  *  Based on ds1307 driver by James Chapman and David Brownell
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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/module.h>
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@@ -107,8 +104,7 @@
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 	fm3130_rtc_mode(dev, FM3130_MODE_READ);
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 	/* read the RTC date and time registers all at once */
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-	tmp = i2c_transfer(to_i2c_adapter(fm3130->client->dev.parent),
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-			fm3130->msg, 2);
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+	tmp = i2c_transfer(fm3130->client->adapter, fm3130->msg, 2);
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 	if (tmp != 2) {
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 		dev_err(dev, "%s error %d\n", "read", tmp);
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 		return -EIO;
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@@ -200,8 +196,7 @@
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 	}
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 	/* read the RTC alarm registers all at once */
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-	tmp = i2c_transfer(to_i2c_adapter(fm3130->client->dev.parent),
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-			&fm3130->msg[2], 2);
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+	tmp = i2c_transfer(fm3130->client->adapter, &fm3130->msg[2], 2);
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 	if (tmp != 2) {
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 		dev_err(dev, "%s error %d\n", "read", tmp);
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 		return -EIO;
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@@ -351,7 +346,7 @@
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 	struct fm3130		*fm3130;
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 	int			err = -ENODEV;
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 	int			tmp;
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-	struct i2c_adapter	*adapter = to_i2c_adapter(client->dev.parent);
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+	struct i2c_adapter	*adapter = client->adapter;
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 	if (!i2c_check_functionality(adapter,
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 			I2C_FUNC_I2C | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))