1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 * linux/sound/soc/pxa/brownstone.c
  4 *
  5 * Copyright (C) 2011 Marvell International Ltd.
  6 */
  7
  8#include <linux/module.h>
  9#include <sound/core.h>
 10#include <sound/pcm.h>
 11#include <sound/soc.h>
 12#include <sound/jack.h>
 13
 14#include "../codecs/wm8994.h"
 15#include "mmp-sspa.h"
 16
 17static const struct snd_kcontrol_new brownstone_dapm_control[] = {
 18	SOC_DAPM_PIN_SWITCH("Ext Spk"),
 19};
 20
 21static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
 22	SND_SOC_DAPM_SPK("Ext Spk", NULL),
 23	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
 24	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 25	SND_SOC_DAPM_MIC("Main Mic", NULL),
 26};
 27
 28static const struct snd_soc_dapm_route brownstone_audio_map[] = {
 29	{"Ext Spk", NULL, "SPKOUTLP"},
 30	{"Ext Spk", NULL, "SPKOUTLN"},
 31	{"Ext Spk", NULL, "SPKOUTRP"},
 32	{"Ext Spk", NULL, "SPKOUTRN"},
 33
 34	{"Headset Stereophone", NULL, "HPOUT1L"},
 35	{"Headset Stereophone", NULL, "HPOUT1R"},
 36
 37	{"IN1RN", NULL, "Headset Mic"},
 38
 39	{"DMIC1DAT", NULL, "MICBIAS1"},
 40	{"MICBIAS1", NULL, "Main Mic"},
 41};
 42
 43static int brownstone_wm8994_hw_params(struct snd_pcm_substream *substream,
 44				       struct snd_pcm_hw_params *params)
 45{
 46	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 47	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 48	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 49	int freq_out, sspa_mclk, sysclk;
 50
 51	if (params_rate(params) > 11025) {
 52		freq_out  = params_rate(params) * 512;
 53		sysclk    = params_rate(params) * 256;
 54		sspa_mclk = params_rate(params) * 64;
 55	} else {
 56		freq_out  = params_rate(params) * 1024;
 57		sysclk    = params_rate(params) * 512;
 58		sspa_mclk = params_rate(params) * 64;
 59	}
 60
 61	snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
 62	snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
 63	snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);
 64
 65	/* set wm8994 sysclk */
 66	snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);
 67
 68	return 0;
 69}
 70
 71/* machine stream operations */
 72static const struct snd_soc_ops brownstone_ops = {
 73	.hw_params = brownstone_wm8994_hw_params,
 74};
 75
 76SND_SOC_DAILINK_DEFS(wm8994,
 77	DAILINK_COMP_ARRAY(COMP_CPU("mmp-sspa-dai.0")),
 78	DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")),
 79	DAILINK_COMP_ARRAY(COMP_PLATFORM("mmp-pcm-audio")));
 80
 81static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
 82{
 83	.name		= "WM8994",
 84	.stream_name	= "WM8994 HiFi",
 85	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 86				SND_SOC_DAIFMT_CBS_CFS,
 87	.ops		= &brownstone_ops,
 88	SND_SOC_DAILINK_REG(wm8994),
 89},
 90};
 91
 92/* audio machine driver */
 93static struct snd_soc_card brownstone = {
 94	.name         = "brownstone",
 95	.owner        = THIS_MODULE,
 96	.dai_link     = brownstone_wm8994_dai,
 97	.num_links    = ARRAY_SIZE(brownstone_wm8994_dai),
 98
 99	.controls = brownstone_dapm_control,
100	.num_controls = ARRAY_SIZE(brownstone_dapm_control),
101	.dapm_widgets = brownstone_dapm_widgets,
102	.num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
103	.dapm_routes = brownstone_audio_map,
104	.num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
105	.fully_routed = true,
106};
107
108static int brownstone_probe(struct platform_device *pdev)
109{
110	int ret;
111
112	brownstone.dev = &pdev->dev;
113	ret = devm_snd_soc_register_card(&pdev->dev, &brownstone);
114	if (ret)
115		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
116				ret);
117	return ret;
118}
119
120static struct platform_driver mmp_driver = {
121	.driver		= {
122		.name	= "brownstone-audio",
123		.pm     = &snd_soc_pm_ops,
124	},
125	.probe		= brownstone_probe,
126};
127
128module_platform_driver(mmp_driver);
129
130MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
131MODULE_DESCRIPTION("ALSA SoC Brownstone");
132MODULE_LICENSE("GPL");
133MODULE_ALIAS("platform:brownstone-audio");