Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
iio: dac: ad5449: drop support for platform data
There are no longer any users of the platform data struct. Remove
support for it from the driver.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20240814092629.9862-1-brgl@bgdev.pl
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Bartosz Golaszewski
and committed by
Jonathan Cameron
631598c4
31c022a4
+2
-52
+2
-13
drivers/iio/dac/ad5449.c
+2
-13
drivers/iio/dac/ad5449.c
···
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#include <linux/iio/iio.h>
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#include <linux/iio/sysfs.h>
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#include <linux/platform_data/ad5449.h>
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-
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#define AD5449_MAX_CHANNELS 2
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#define AD5449_MAX_VREFS 2
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···
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static int ad5449_spi_probe(struct spi_device *spi)
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{
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struct ad5449_platform_data *pdata = spi->dev.platform_data;
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const struct spi_device_id *id = spi_get_device_id(spi);
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struct iio_dev *indio_dev;
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struct ad5449 *st;
···
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mutex_init(&st->lock);
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if (st->chip_info->has_ctrl) {
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unsigned int ctrl = 0x00;
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if (pdata) {
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if (pdata->hardware_clear_to_midscale)
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ctrl |= AD5449_CTRL_HCLR_TO_MIDSCALE;
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ctrl |= pdata->sdo_mode << AD5449_CTRL_SDO_OFFSET;
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st->has_sdo = pdata->sdo_mode != AD5449_SDO_DISABLED;
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} else {
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st->has_sdo = true;
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}
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ad5449_write(indio_dev, AD5449_CMD_CTRL, ctrl);
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st->has_sdo = true;
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ad5449_write(indio_dev, AD5449_CMD_CTRL, 0x0);
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}
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ret = iio_device_register(indio_dev);
-39
include/linux/platform_data/ad5449.h
-39
include/linux/platform_data/ad5449.h
···
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog
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* Converter 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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#ifndef __LINUX_PLATFORM_DATA_AD5449_H__
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#define __LINUX_PLATFORM_DATA_AD5449_H__
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-
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/**
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* enum ad5449_sdo_mode - AD5449 SDO pin configuration
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* @AD5449_SDO_DRIVE_FULL: Drive the SDO pin with full strength.
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* @AD5449_SDO_DRIVE_WEAK: Drive the SDO pin with not full strength.
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* @AD5449_SDO_OPEN_DRAIN: Operate the SDO pin in open-drain mode.
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* @AD5449_SDO_DISABLED: Disable the SDO pin, in this mode it is not possible to
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* read back from the device.
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*/
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enum ad5449_sdo_mode {
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AD5449_SDO_DRIVE_FULL = 0x0,
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AD5449_SDO_DRIVE_WEAK = 0x1,
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AD5449_SDO_OPEN_DRAIN = 0x2,
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AD5449_SDO_DISABLED = 0x3,
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};
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/**
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* struct ad5449_platform_data - Platform data for the ad5449 DAC driver
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* @sdo_mode: SDO pin mode
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* @hardware_clear_to_midscale: Whether asserting the hardware CLR pin sets the
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* outputs to midscale (true) or to zero scale(false).
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*/
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struct ad5449_platform_data {
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enum ad5449_sdo_mode sdo_mode;
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bool hardware_clear_to_midscale;
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};
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#endif