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>

diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index 4572d6f49275f0362b6a8c62e86804240a8739d2..953fcfa2110bb0f20c93083e46f43fe929fb0744 100644 (file)
--- a/drivers/iio/dac/ad5449.c
+++ b/drivers/iio/dac/ad5449.c
@@ -20,8 +20,6 @@
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 
-#include <linux/platform_data/ad5449.h>
-
 #define AD5449_MAX_CHANNELS            2
 #define AD5449_MAX_VREFS               2
 
@@ -268,7 +266,6 @@ static const char *ad5449_vref_name(struct ad5449 *st, int n)
 
 static int ad5449_spi_probe(struct spi_device *spi)
 {
-       struct ad5449_platform_data *pdata = spi->dev.platform_data;
        const struct spi_device_id *id = spi_get_device_id(spi);
        struct iio_dev *indio_dev;
        struct ad5449 *st;
@@ -306,16 +303,8 @@ static int ad5449_spi_probe(struct spi_device *spi)
        mutex_init(&st->lock);
 
        if (st->chip_info->has_ctrl) {
-               unsigned int ctrl = 0x00;
-               if (pdata) {
-                       if (pdata->hardware_clear_to_midscale)
-                               ctrl |= AD5449_CTRL_HCLR_TO_MIDSCALE;
-                       ctrl |= pdata->sdo_mode << AD5449_CTRL_SDO_OFFSET;
-                       st->has_sdo = pdata->sdo_mode != AD5449_SDO_DISABLED;
-               } else {
-                       st->has_sdo = true;
-               }
-               ad5449_write(indio_dev, AD5449_CMD_CTRL, ctrl);
+               st->has_sdo = true;
+               ad5449_write(indio_dev, AD5449_CMD_CTRL, 0x0);
        }
 
        ret = iio_device_register(indio_dev);

diff --git a/include/linux/platform_data/ad5449.h b/include/linux/platform_data/ad5449.h
deleted file mode 100644 (file)
index d687ef5..0000000
--- a/include/linux/platform_data/ad5449.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog
- * Converter driver.
- *
- * Copyright 2012 Analog Devices Inc.
- *  Author: Lars-Peter Clausen <lars@metafoo.de>
- */
-
-#ifndef __LINUX_PLATFORM_DATA_AD5449_H__
-#define __LINUX_PLATFORM_DATA_AD5449_H__
-
-/**
- * enum ad5449_sdo_mode - AD5449 SDO pin configuration
- * @AD5449_SDO_DRIVE_FULL: Drive the SDO pin with full strength.
- * @AD5449_SDO_DRIVE_WEAK: Drive the SDO pin with not full strength.
- * @AD5449_SDO_OPEN_DRAIN: Operate the SDO pin in open-drain mode.
- * @AD5449_SDO_DISABLED: Disable the SDO pin, in this mode it is not possible to
- *                     read back from the device.
- */
-enum ad5449_sdo_mode {
-       AD5449_SDO_DRIVE_FULL = 0x0,
-       AD5449_SDO_DRIVE_WEAK = 0x1,
-       AD5449_SDO_OPEN_DRAIN = 0x2,
-       AD5449_SDO_DISABLED = 0x3,
-};
-
-/**
- * struct ad5449_platform_data - Platform data for the ad5449 DAC driver
- * @sdo_mode: SDO pin mode
- * @hardware_clear_to_midscale: Whether asserting the hardware CLR pin sets the
- *                     outputs to midscale (true) or to zero scale(false).
- */
-struct ad5449_platform_data {
-       enum ad5449_sdo_mode sdo_mode;
-       bool hardware_clear_to_midscale;
-};
-
-#endif