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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * wm8731.c -- WM8731 ALSA SoC Audio driver4 *5 * Copyright 2005 Openedhand Ltd.6 * Copyright 2006-12 Wolfson Microelectronics, plc7 *8 * Author: Richard Purdie <richard@openedhand.com>9 *10 * Based on wm8753.c by Liam Girdwood11 */12 13#include <linux/spi/spi.h>14#include <linux/mod_devicetable.h>15#include <linux/module.h>16 17#include "wm8731.h"18 19static const struct of_device_id wm8731_of_match[] = {20 { .compatible = "wlf,wm8731", },21 { }22};23MODULE_DEVICE_TABLE(of, wm8731_of_match);24 25static int wm8731_spi_probe(struct spi_device *spi)26{27 struct wm8731_priv *wm8731;28 int ret;29 30 wm8731 = devm_kzalloc(&spi->dev, sizeof(*wm8731), GFP_KERNEL);31 if (wm8731 == NULL)32 return -ENOMEM;33 34 spi_set_drvdata(spi, wm8731);35 36 wm8731->regmap = devm_regmap_init_spi(spi, &wm8731_regmap);37 if (IS_ERR(wm8731->regmap)) {38 ret = PTR_ERR(wm8731->regmap);39 dev_err(&spi->dev, "Failed to allocate register map: %d\n",40 ret);41 return ret;42 }43 44 return wm8731_init(&spi->dev, wm8731);45}46 47static struct spi_driver wm8731_spi_driver = {48 .driver = {49 .name = "wm8731",50 .of_match_table = wm8731_of_match,51 },52 .probe = wm8731_spi_probe,53};54 55module_spi_driver(wm8731_spi_driver);56 57MODULE_DESCRIPTION("ASoC WM8731 driver - SPI");58MODULE_AUTHOR("Richard Purdie");59MODULE_LICENSE("GPL");60