change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/iio/adc/ad7791.c
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@@ -1,10 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * AD7787/AD7788/AD7789/AD7790/AD7791 SPI ADC driver
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  *
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  * Copyright 2012 Analog Devices Inc.
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  *  Author: Lars-Peter Clausen <lars@metafoo.de>
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- *
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- * Licensed under the GPL-2.
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  */
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 #include <linux/interrupt.h>
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@@ -65,25 +64,73 @@
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 #define AD7791_MODE_SEL_MASK		(0x3 << 6)
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 #define AD7791_MODE_SEL(x)		((x) << 6)
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+#define __AD7991_CHANNEL(_si, _channel1, _channel2, _address, _bits, \
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+	_storagebits, _shift, _extend_name, _type, _mask_all) \
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+	{ \
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+		.type = (_type), \
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+		.differential = (_channel2 == -1 ? 0 : 1), \
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+		.indexed = 1, \
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+		.channel = (_channel1), \
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+		.channel2 = (_channel2), \
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+		.address = (_address), \
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+		.extend_name = (_extend_name), \
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+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
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+			BIT(IIO_CHAN_INFO_OFFSET), \
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+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
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+		.info_mask_shared_by_all = _mask_all, \
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+		.scan_index = (_si), \
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+		.scan_type = { \
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+			.sign = 'u', \
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+			.realbits = (_bits), \
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+			.storagebits = (_storagebits), \
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+			.shift = (_shift), \
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+			.endianness = IIO_BE, \
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+		}, \
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+	}
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+
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+#define AD7991_SHORTED_CHANNEL(_si, _channel, _address, _bits, \
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+	_storagebits, _shift) \
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+	__AD7991_CHANNEL(_si, _channel, _channel, _address, _bits, \
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+		_storagebits, _shift, "shorted", IIO_VOLTAGE, \
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+		BIT(IIO_CHAN_INFO_SAMP_FREQ))
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+
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+#define AD7991_CHANNEL(_si, _channel, _address, _bits, \
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+	_storagebits, _shift) \
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+	__AD7991_CHANNEL(_si, _channel, -1, _address, _bits, \
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+		_storagebits, _shift, NULL, IIO_VOLTAGE, \
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+		 BIT(IIO_CHAN_INFO_SAMP_FREQ))
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+
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+#define AD7991_DIFF_CHANNEL(_si, _channel1, _channel2, _address, _bits, \
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+	_storagebits, _shift) \
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+	__AD7991_CHANNEL(_si, _channel1, _channel2, _address, _bits, \
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+		_storagebits, _shift, NULL, IIO_VOLTAGE, \
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+		BIT(IIO_CHAN_INFO_SAMP_FREQ))
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+
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+#define AD7991_SUPPLY_CHANNEL(_si, _channel, _address, _bits, _storagebits, \
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+	_shift) \
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+	__AD7991_CHANNEL(_si, _channel, -1, _address, _bits, \
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+		_storagebits, _shift, "supply", IIO_VOLTAGE, \
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+		BIT(IIO_CHAN_INFO_SAMP_FREQ))
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+
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 #define DECLARE_AD7787_CHANNELS(name, bits, storagebits) \
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 const struct iio_chan_spec name[] = { \
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-	AD_SD_DIFF_CHANNEL(0, 0, 0, AD7791_CH_AIN1P_AIN1N, \
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+	AD7991_DIFF_CHANNEL(0, 0, 0, AD7791_CH_AIN1P_AIN1N, \
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 		(bits), (storagebits), 0), \
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-	AD_SD_CHANNEL(1, 1, AD7791_CH_AIN2, (bits), (storagebits), 0), \
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-	AD_SD_SHORTED_CHANNEL(2, 0, AD7791_CH_AIN1N_AIN1N, \
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+	AD7991_CHANNEL(1, 1, AD7791_CH_AIN2, (bits), (storagebits), 0), \
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+	AD7991_SHORTED_CHANNEL(2, 0, AD7791_CH_AIN1N_AIN1N, \
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 		(bits), (storagebits), 0), \
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-	AD_SD_SUPPLY_CHANNEL(3, 2, AD7791_CH_AVDD_MONITOR,  \
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+	AD7991_SUPPLY_CHANNEL(3, 2, AD7791_CH_AVDD_MONITOR,  \
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 		(bits), (storagebits), 0), \
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 	IIO_CHAN_SOFT_TIMESTAMP(4), \
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 }
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 #define DECLARE_AD7791_CHANNELS(name, bits, storagebits) \
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 const struct iio_chan_spec name[] = { \
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-	AD_SD_DIFF_CHANNEL(0, 0, 0, AD7791_CH_AIN1P_AIN1N, \
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+	AD7991_DIFF_CHANNEL(0, 0, 0, AD7791_CH_AIN1P_AIN1N, \
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 		(bits), (storagebits), 0), \
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-	AD_SD_SHORTED_CHANNEL(1, 0, AD7791_CH_AIN1N_AIN1N, \
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+	AD7991_SHORTED_CHANNEL(1, 0, AD7791_CH_AIN1N_AIN1N, \
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 		(bits), (storagebits), 0), \
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-	AD_SD_SUPPLY_CHANNEL(2, 1, AD7791_CH_AVDD_MONITOR, \
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+	AD7991_SUPPLY_CHANNEL(2, 1, AD7791_CH_AVDD_MONITOR, \
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 		(bits), (storagebits), 0), \
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 	IIO_CHAN_SOFT_TIMESTAMP(3), \
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 }
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@@ -206,6 +253,7 @@
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 	.has_registers = true,
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 	.addr_shift = 4,
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 	.read_mask = BIT(3),
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+	.irq_flags = IRQF_TRIGGER_FALLING,
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 };
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 static int ad7791_read_raw(struct iio_dev *indio_dev,
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@@ -377,8 +425,6 @@
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 	spi_set_drvdata(spi, indio_dev);
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-	indio_dev->dev.parent = &spi->dev;
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-	indio_dev->dev.of_node = spi->dev.of_node;
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 	indio_dev->name = spi_get_device_id(spi)->name;
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 	indio_dev->modes = INDIO_DIRECT_MODE;
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 	indio_dev->channels = st->info->channels;
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@@ -444,5 +490,5 @@
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 module_spi_driver(ad7791_driver);
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 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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-MODULE_DESCRIPTION("Analog Device AD7787/AD7788/AD7789/AD7790/AD7791 ADC driver");
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+MODULE_DESCRIPTION("Analog Devices AD7787/AD7788/AD7789/AD7790/AD7791 ADC driver");
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 MODULE_LICENSE("GPL v2");