modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/iio/adc/mcp3422.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * mcp3422.c - driver for the Microchip mcp3421/2/3/4/5/6/7/8 chip family
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  *
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@@ -5,24 +6,20 @@
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  * Author: Angelo Compagnucci <angelo.compagnucci@gmail.com>
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  *
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  * Datasheet: http://ww1.microchip.com/downloads/en/devicedoc/22088b.pdf
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- *            http://ww1.microchip.com/downloads/en/DeviceDoc/22226a.pdf
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- *            http://ww1.microchip.com/downloads/en/DeviceDoc/22072b.pdf
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+ *            https://ww1.microchip.com/downloads/en/DeviceDoc/22226a.pdf
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+ *            https://ww1.microchip.com/downloads/en/DeviceDoc/22072b.pdf
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  *
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  * This driver exports the value of analog input voltage to sysfs, the
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  * voltage unit is nV.
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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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 #include <linux/err.h>
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 #include <linux/i2c.h>
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 #include <linux/module.h>
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+#include <linux/mod_devicetable.h>
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 #include <linux/delay.h>
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 #include <linux/sysfs.h>
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-#include <linux/of.h>
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+#include <asm/unaligned.h>
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 #include <linux/iio/iio.h>
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 #include <linux/iio/sysfs.h>
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@@ -117,11 +114,11 @@
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 	if (sample_rate == MCP3422_SRATE_3) {
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 		ret = i2c_master_recv(adc->i2c, buf, 4);
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-		temp = buf[0] << 16 | buf[1] << 8 | buf[2];
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+		temp = get_unaligned_be24(&buf[0]);
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 		*config = buf[3];
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 	} else {
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 		ret = i2c_master_recv(adc->i2c, buf, 3);
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-		temp = buf[0] << 8 | buf[1];
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+		temp = get_unaligned_be16(&buf[0]);
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 		*config = buf[2];
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 	}
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@@ -354,8 +351,6 @@
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 	mutex_init(&adc->lock);
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-	indio_dev->dev.parent = &client->dev;
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-	indio_dev->dev.of_node = client->dev.of_node;
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 	indio_dev->name = dev_name(&client->dev);
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 	indio_dev->modes = INDIO_DIRECT_MODE;
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 	indio_dev->info = &mcp3422_info;
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@@ -411,18 +406,16 @@
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 };
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 MODULE_DEVICE_TABLE(i2c, mcp3422_id);
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-#ifdef CONFIG_OF
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 static const struct of_device_id mcp3422_of_match[] = {
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 	{ .compatible = "mcp3422" },
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 	{ }
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 };
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 MODULE_DEVICE_TABLE(of, mcp3422_of_match);
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-#endif
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 static struct i2c_driver mcp3422_driver = {
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 	.driver = {
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 		.name = "mcp3422",
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-		.of_match_table = of_match_ptr(mcp3422_of_match),
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+		.of_match_table = mcp3422_of_match,
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 	},
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 	.probe = mcp3422_probe,
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 	.id_table = mcp3422_id,