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 <linux/platform_data/asoc-pxa.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_pins(rtd->card, "Headphone Jack",
 75					 SND_JACK_HEADPHONE, &hs_jack,
 76					 hs_jack_pins,
 77					 ARRAY_SIZE(hs_jack_pins));
 78	if (err)
 79		return err;
 80
 81	err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 82				hs_jack_gpios);
 83
 84	return err;
 85}
 86
 87SND_SOC_DAILINK_DEFS(hifi,
 88	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
 89	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
 90	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 91
 92SND_SOC_DAILINK_DEFS(aux,
 93	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
 94	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
 95	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 96
 97static struct snd_soc_dai_link palm27x_dai[] = {
 98{
 99	.name = "AC97 HiFi",
100	.stream_name = "AC97 HiFi",
101	.init = palm27x_ac97_init,
102	SND_SOC_DAILINK_REG(hifi),
103},
104{
105	.name = "AC97 Aux",
106	.stream_name = "AC97 Aux",
107	SND_SOC_DAILINK_REG(aux),
108},
109};
110
111static struct snd_soc_card palm27x_asoc = {
112	.name = "Palm/PXA27x",
113	.owner = THIS_MODULE,
114	.dai_link = palm27x_dai,
115	.num_links = ARRAY_SIZE(palm27x_dai),
116	.dapm_widgets = palm27x_dapm_widgets,
117	.num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
118	.dapm_routes = audio_map,
119	.num_dapm_routes = ARRAY_SIZE(audio_map),
120	.fully_routed = true,
121};
122
123static int palm27x_asoc_probe(struct platform_device *pdev)
124{
125	int ret;
126
127	if (!(machine_is_palmtx() || machine_is_palmt5() ||
128		machine_is_palmld() || machine_is_palmte2()))
129		return -ENODEV;
130
131	if (!pdev->dev.platform_data) {
132		dev_err(&pdev->dev, "please supply platform_data\n");
133		return -ENODEV;
134	}
135
136	hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
137			(pdev->dev.platform_data))->jack_gpio;
138
139	palm27x_asoc.dev = &pdev->dev;
140
141	ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
142	if (ret)
143		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
144			ret);
145	return ret;
146}
147
148static struct platform_driver palm27x_wm9712_driver = {
149	.probe		= palm27x_asoc_probe,
150	.driver		= {
151		.name		= "palm27x-asoc",
152		.pm     = &snd_soc_pm_ops,
153	},
154};
155
156module_platform_driver(palm27x_wm9712_driver);
157
158/* Module information */
159MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
160MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
161MODULE_LICENSE("GPL");
162MODULE_ALIAS("platform:palm27x-asoc");