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 = asoc_substream_to_rtd(substream);
47	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
48	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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");
134