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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * wm8727.c4 *5 * Created on: 15-Oct-20096 * Author: neil.jones@imgtec.com7 *8 * Copyright (C) 2009 Imagination Technologies Ltd.9 */10 11#include <linux/init.h>12#include <linux/slab.h>13#include <linux/module.h>14#include <linux/kernel.h>15#include <linux/device.h>16#include <sound/core.h>17#include <sound/pcm.h>18#include <sound/initval.h>19#include <sound/soc.h>20 21static const struct snd_soc_dapm_widget wm8727_dapm_widgets[] = {22SND_SOC_DAPM_OUTPUT("VOUTL"),23SND_SOC_DAPM_OUTPUT("VOUTR"),24};25 26static const struct snd_soc_dapm_route wm8727_dapm_routes[] = {27 { "VOUTL", NULL, "Playback" },28 { "VOUTR", NULL, "Playback" },29};30 31/*32 * Note this is a simple chip with no configuration interface, sample rate is33 * determined automatically by examining the Master clock and Bit clock ratios34 */35#define WM8727_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\36 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\37 SNDRV_PCM_RATE_192000)38 39static struct snd_soc_dai_driver wm8727_dai = {40 .name = "wm8727-hifi",41 .playback = {42 .stream_name = "Playback",43 .channels_min = 2,44 .channels_max = 2,45 .rates = WM8727_RATES,46 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,47 },48};49 50static const struct snd_soc_component_driver soc_component_dev_wm8727 = {51 .dapm_widgets = wm8727_dapm_widgets,52 .num_dapm_widgets = ARRAY_SIZE(wm8727_dapm_widgets),53 .dapm_routes = wm8727_dapm_routes,54 .num_dapm_routes = ARRAY_SIZE(wm8727_dapm_routes),55 .idle_bias_on = 1,56 .use_pmdown_time = 1,57 .endianness = 1,58};59 60static int wm8727_probe(struct platform_device *pdev)61{62 return devm_snd_soc_register_component(&pdev->dev,63 &soc_component_dev_wm8727, &wm8727_dai, 1);64}65 66static struct platform_driver wm8727_codec_driver = {67 .driver = {68 .name = "wm8727",69 },70 71 .probe = wm8727_probe,72};73 74module_platform_driver(wm8727_codec_driver);75 76MODULE_DESCRIPTION("ASoC wm8727 driver");77MODULE_AUTHOR("Neil Jones");78MODULE_LICENSE("GPL");79