1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * linux/sound/soc/pxa/palm27x.c
  4 *
  5 * SoC Audio driver for Palm T|X, T5 and LifeDrive
  6 *
  7 * based on tosa.c
  8 *
  9 * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
 10 */
 11
 12#include <linux/module.h>
 13#include <linux/moduleparam.h>
 14#include <linux/device.h>
 15#include <linux/gpio.h>
 16
 17#include <sound/core.h>
 18#include <sound/pcm.h>
 19#include <sound/soc.h>
 20#include <sound/jack.h>
 21
 22#include <asm/mach-types.h>
 23#include <mach/audio.h>
 24#include <linux/platform_data/asoc-palm27x.h>
 25
 26static struct snd_soc_jack hs_jack;
 27
 28/* Headphones jack detection DAPM pins */
 29static struct snd_soc_jack_pin hs_jack_pins[] = {
 30	{
 31		.pin    = "Headphone Jack",
 32		.mask   = SND_JACK_HEADPHONE,
 33	},
 34};
 35
 36/* Headphones jack detection gpios */
 37static struct snd_soc_jack_gpio hs_jack_gpios[] = {
 38	[0] = {
 39		/* gpio is set on per-platform basis */
 40		.name           = "hp-gpio",
 41		.report         = SND_JACK_HEADPHONE,
 42		.debounce_time	= 200,
 43	},
 44};
 45
 46/* Palm27x machine dapm widgets */
 47static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
 48	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 49	SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
 50	SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
 51};
 52
 53/* PalmTX audio map */
 54static const struct snd_soc_dapm_route audio_map[] = {
 55	/* headphone connected to HPOUTL, HPOUTR */
 56	{"Headphone Jack", NULL, "HPOUTL"},
 57	{"Headphone Jack", NULL, "HPOUTR"},
 58
 59	/* ext speaker connected to ROUT2, LOUT2 */
 60	{"Ext. Speaker", NULL, "LOUT2"},
 61	{"Ext. Speaker", NULL, "ROUT2"},
 62
 63	/* mic connected to MIC1 */
 64	{"MIC1", NULL, "Ext. Microphone"},
 65};
 66
 67static struct snd_soc_card palm27x_asoc;
 68
 69static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
 70{
 71	int err;
 72
 73	/* Jack detection API stuff */
 74	err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
 75				    SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
 76				    ARRAY_SIZE(hs_jack_pins));
 77	if (err)
 78		return err;
 79
 80	err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 81				hs_jack_gpios);
 82
 83	return err;
 84}
 85
 86SND_SOC_DAILINK_DEFS(hifi,
 87	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
 88	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
 89	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 90
 91SND_SOC_DAILINK_DEFS(aux,
 92	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
 93	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
 94	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 95
 96static struct snd_soc_dai_link palm27x_dai[] = {
 97{
 98	.name = "AC97 HiFi",
 99	.stream_name = "AC97 HiFi",
100	.init = palm27x_ac97_init,
101	SND_SOC_DAILINK_REG(hifi),
102},
103{
104	.name = "AC97 Aux",
105	.stream_name = "AC97 Aux",
106	SND_SOC_DAILINK_REG(aux),
107},
108};
109
110static struct snd_soc_card palm27x_asoc = {
111	.name = "Palm/PXA27x",
112	.owner = THIS_MODULE,
113	.dai_link = palm27x_dai,
114	.num_links = ARRAY_SIZE(palm27x_dai),
115	.dapm_widgets = palm27x_dapm_widgets,
116	.num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
117	.dapm_routes = audio_map,
118	.num_dapm_routes = ARRAY_SIZE(audio_map),
119	.fully_routed = true,
120};
121
122static int palm27x_asoc_probe(struct platform_device *pdev)
123{
124	int ret;
125
126	if (!(machine_is_palmtx() || machine_is_palmt5() ||
127		machine_is_palmld() || machine_is_palmte2()))
128		return -ENODEV;
129
130	if (!pdev->dev.platform_data) {
131		dev_err(&pdev->dev, "please supply platform_data\n");
132		return -ENODEV;
133	}
134
135	hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
136			(pdev->dev.platform_data))->jack_gpio;
137
138	palm27x_asoc.dev = &pdev->dev;
139
140	ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
141	if (ret)
142		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
143			ret);
144	return ret;
145}
146
147static struct platform_driver palm27x_wm9712_driver = {
148	.probe		= palm27x_asoc_probe,
149	.driver		= {
150		.name		= "palm27x-asoc",
151		.pm     = &snd_soc_pm_ops,
152	},
153};
154
155module_platform_driver(palm27x_wm9712_driver);
156
157/* Module information */
158MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
159MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
160MODULE_LICENSE("GPL");
161MODULE_ALIAS("platform:palm27x-asoc");