cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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wm8727.c (2013B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * wm8727.c
      4 *
      5 *  Created on: 15-Oct-2009
      6 *      Author: neil.jones@imgtec.com
      7 *
      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 is
     33 * determined automatically by examining the Master clock and Bit clock ratios
     34 */
     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	.non_legacy_dai_naming	= 1,
     59};
     60
     61static int wm8727_probe(struct platform_device *pdev)
     62{
     63	return devm_snd_soc_register_component(&pdev->dev,
     64			&soc_component_dev_wm8727, &wm8727_dai, 1);
     65}
     66
     67static struct platform_driver wm8727_codec_driver = {
     68	.driver = {
     69			.name = "wm8727",
     70	},
     71
     72	.probe = wm8727_probe,
     73};
     74
     75module_platform_driver(wm8727_codec_driver);
     76
     77MODULE_DESCRIPTION("ASoC wm8727 driver");
     78MODULE_AUTHOR("Neil Jones");
     79MODULE_LICENSE("GPL");