xref: /openbmc/linux/sound/soc/amd/acp-es8336.c (revision 99b642da)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Machine driver for AMD Stoney platform using ES8336 Codec
4  *
5  * Copyright 2022 Advanced Micro Devices, Inc.
6  */
7 
8 #include <sound/core.h>
9 #include <sound/soc.h>
10 #include <sound/pcm.h>
11 #include <sound/pcm_params.h>
12 #include <sound/soc-dapm.h>
13 #include <sound/jack.h>
14 #include <linux/gpio.h>
15 #include <linux/device.h>
16 #include <linux/dmi.h>
17 #include <linux/gpio/consumer.h>
18 #include <linux/gpio/machine.h>
19 #include <linux/i2c.h>
20 #include <linux/input.h>
21 #include <linux/module.h>
22 #include <linux/platform_device.h>
23 #include <linux/acpi.h>
24 
25 #include "acp.h"
26 
27 #define DUAL_CHANNEL	2
28 #define DRV_NAME "acp2x_mach"
29 #define ST_JADEITE	1
30 #define ES8336_PLL_FREQ (48000 * 256)
31 
32 static unsigned long acp2x_machine_id;
33 static struct snd_soc_jack st_jack;
34 static struct device *codec_dev;
35 static struct gpio_desc *gpio_pa;
36 
sof_es8316_speaker_power_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)37 static int sof_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
38 					  struct snd_kcontrol *kcontrol, int event)
39 {
40 	if (SND_SOC_DAPM_EVENT_ON(event))
41 		gpiod_set_value_cansleep(gpio_pa, true);
42 	else
43 		gpiod_set_value_cansleep(gpio_pa, false);
44 
45 	return 0;
46 }
47 
48 static struct snd_soc_jack_pin st_es8316_jack_pins[] = {
49 	{
50 		.pin	= "Headphone",
51 		.mask	= SND_JACK_HEADPHONE,
52 	},
53 	{
54 		.pin	= "Headset Mic",
55 		.mask	= SND_JACK_MICROPHONE,
56 	},
57 };
58 
st_es8336_init(struct snd_soc_pcm_runtime * rtd)59 static int st_es8336_init(struct snd_soc_pcm_runtime *rtd)
60 {
61 	int ret;
62 	struct snd_soc_card *card;
63 	struct snd_soc_component *codec;
64 
65 	codec = asoc_rtd_to_codec(rtd, 0)->component;
66 	card = rtd->card;
67 
68 	ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0,
69 					 &st_jack, st_es8316_jack_pins,
70 					 ARRAY_SIZE(st_es8316_jack_pins));
71 	if (ret) {
72 		dev_err(card->dev, "HP jack creation failed %d\n", ret);
73 		return ret;
74 	}
75 	snd_jack_set_key(st_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
76 	ret = snd_soc_component_set_jack(codec, &st_jack, NULL);
77 	if (ret) {
78 		dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
79 		return ret;
80 	}
81 	return 0;
82 }
83 
84 static const unsigned int st_channels[] = {
85 	DUAL_CHANNEL,
86 };
87 
88 static const unsigned int st_rates[] = {
89 	48000,
90 };
91 
92 static const struct snd_pcm_hw_constraint_list st_constraints_rates = {
93 	.count = ARRAY_SIZE(st_rates),
94 	.list  = st_rates,
95 	.mask = 0,
96 };
97 
98 static const struct snd_pcm_hw_constraint_list st_constraints_channels = {
99 	.count = ARRAY_SIZE(st_channels),
100 	.list = st_channels,
101 	.mask = 0,
102 };
103 
st_es8336_codec_startup(struct snd_pcm_substream * substream)104 static int st_es8336_codec_startup(struct snd_pcm_substream *substream)
105 {
106 	struct snd_pcm_runtime *runtime;
107 	struct snd_soc_pcm_runtime *rtd;
108 	struct snd_soc_card *card;
109 	struct acp_platform_info *machine;
110 	struct snd_soc_dai *codec_dai;
111 	int ret;
112 
113 	runtime = substream->runtime;
114 	rtd = asoc_substream_to_rtd(substream);
115 	card = rtd->card;
116 	machine = snd_soc_card_get_drvdata(card);
117 	codec_dai = asoc_rtd_to_codec(rtd, 0);
118 	ret = snd_soc_dai_set_sysclk(codec_dai, 0, ES8336_PLL_FREQ, SND_SOC_CLOCK_IN);
119 	if (ret < 0) {
120 		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
121 		return ret;
122 	}
123 	runtime->hw.channels_max = DUAL_CHANNEL;
124 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
125 				   &st_constraints_channels);
126 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
127 				   &st_constraints_rates);
128 
129 	machine->play_i2s_instance = I2S_MICSP_INSTANCE;
130 	machine->cap_i2s_instance = I2S_MICSP_INSTANCE;
131 	machine->capture_channel = CAP_CHANNEL0;
132 	return 0;
133 }
134 
135 static const struct snd_soc_ops st_es8336_ops = {
136 	.startup = st_es8336_codec_startup,
137 };
138 
139 SND_SOC_DAILINK_DEF(designware1,
140 		    DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2.auto")));
141 SND_SOC_DAILINK_DEF(codec,
142 		    DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8336:00", "ES8316 HiFi")));
143 SND_SOC_DAILINK_DEF(platform,
144 		    DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_audio_dma.1.auto")));
145 
146 static struct snd_soc_dai_link st_dai_es8336[] = {
147 	{
148 		.name = "amdes8336",
149 		.stream_name = "ES8336 HiFi Play",
150 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
151 				| SND_SOC_DAIFMT_CBP_CFP,
152 		.trigger_stop = SND_SOC_TRIGGER_ORDER_LDC,
153 		.dpcm_capture = 1,
154 		.dpcm_playback = 1,
155 		.init = st_es8336_init,
156 		.ops = &st_es8336_ops,
157 		SND_SOC_DAILINK_REG(designware1, codec, platform),
158 	},
159 };
160 
161 static const struct snd_soc_dapm_widget st_widgets[] = {
162 	SND_SOC_DAPM_SPK("Speaker", NULL),
163 	SND_SOC_DAPM_HP("Headphone", NULL),
164 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
165 	SND_SOC_DAPM_MIC("Internal Mic", NULL),
166 
167 	SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
168 			    sof_es8316_speaker_power_event,
169 			    SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
170 };
171 
172 static const struct snd_soc_dapm_route st_audio_route[] = {
173 	{"Speaker", NULL, "HPOL"},
174 	{"Speaker", NULL, "HPOR"},
175 	{"Headphone", NULL, "HPOL"},
176 	{"Headphone", NULL, "HPOR"},
177 	{"MIC1", NULL, "Headset Mic"},
178 	{"MIC2", NULL, "Internal Mic"},
179 	{"Speaker", NULL, "Speaker Power"},
180 };
181 
182 static const struct snd_kcontrol_new st_mc_controls[] = {
183 	SOC_DAPM_PIN_SWITCH("Speaker"),
184 	SOC_DAPM_PIN_SWITCH("Headphone"),
185 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
186 	SOC_DAPM_PIN_SWITCH("Internal Mic"),
187 };
188 
189 static const struct acpi_gpio_params pa_enable_gpio = { 0, 0, false };
190 static const struct acpi_gpio_mapping acpi_es8336_gpios[] = {
191 	{ "pa-enable-gpios", &pa_enable_gpio, 1 },
192 	{ }
193 };
194 
st_es8336_late_probe(struct snd_soc_card * card)195 static int st_es8336_late_probe(struct snd_soc_card *card)
196 {
197 	struct acpi_device *adev;
198 	int ret;
199 
200 	adev = acpi_dev_get_first_match_dev("ESSX8336", NULL, -1);
201 	if (!adev)
202 		return -ENODEV;
203 
204 	codec_dev = acpi_get_first_physical_node(adev);
205 	acpi_dev_put(adev);
206 	if (!codec_dev) {
207 		dev_err(card->dev, "can not find codec dev\n");
208 		return -ENODEV;
209 	}
210 
211 	ret = devm_acpi_dev_add_driver_gpios(codec_dev, acpi_es8336_gpios);
212 	if (ret)
213 		dev_warn(card->dev, "Failed to add driver gpios\n");
214 
215 	gpio_pa = gpiod_get_optional(codec_dev, "pa-enable", GPIOD_OUT_LOW);
216 	if (IS_ERR(gpio_pa)) {
217 		ret = dev_err_probe(card->dev, PTR_ERR(gpio_pa),
218 				    "could not get pa-enable GPIO\n");
219 		put_device(codec_dev);
220 		return ret;
221 	}
222 	return 0;
223 }
224 
225 static struct snd_soc_card st_card = {
226 	.name = "acpes8336",
227 	.owner = THIS_MODULE,
228 	.dai_link = st_dai_es8336,
229 	.num_links = ARRAY_SIZE(st_dai_es8336),
230 	.dapm_widgets = st_widgets,
231 	.num_dapm_widgets = ARRAY_SIZE(st_widgets),
232 	.dapm_routes = st_audio_route,
233 	.num_dapm_routes = ARRAY_SIZE(st_audio_route),
234 	.controls = st_mc_controls,
235 	.num_controls = ARRAY_SIZE(st_mc_controls),
236 	.late_probe = st_es8336_late_probe,
237 };
238 
st_es8336_quirk_cb(const struct dmi_system_id * id)239 static int st_es8336_quirk_cb(const struct dmi_system_id *id)
240 {
241 	acp2x_machine_id = ST_JADEITE;
242 	return 1;
243 }
244 
245 static const struct dmi_system_id st_es8336_quirk_table[] = {
246 	{
247 		.callback = st_es8336_quirk_cb,
248 		.matches = {
249 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMD"),
250 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jadeite"),
251 		},
252 	},
253 	{
254 		.callback = st_es8336_quirk_cb,
255 		.matches = {
256 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "IP3 Technology CO.,Ltd."),
257 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ASN1D"),
258 		},
259 	},
260 	{
261 		.callback = st_es8336_quirk_cb,
262 		.matches = {
263 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Standard"),
264 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ASN10"),
265 		},
266 	},
267 	{}
268 };
269 
st_es8336_probe(struct platform_device * pdev)270 static int st_es8336_probe(struct platform_device *pdev)
271 {
272 	int ret;
273 	struct snd_soc_card *card;
274 	struct acp_platform_info *machine;
275 
276 	machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info), GFP_KERNEL);
277 	if (!machine)
278 		return -ENOMEM;
279 
280 	dmi_check_system(st_es8336_quirk_table);
281 	switch (acp2x_machine_id) {
282 	case ST_JADEITE:
283 		card = &st_card;
284 		st_card.dev = &pdev->dev;
285 		break;
286 	default:
287 		return -ENODEV;
288 	}
289 
290 	platform_set_drvdata(pdev, card);
291 	snd_soc_card_set_drvdata(card, machine);
292 	ret = devm_snd_soc_register_card(&pdev->dev, &st_card);
293 	if (ret) {
294 		return dev_err_probe(&pdev->dev, ret,
295 				     "devm_snd_soc_register_card(%s) failed\n",
296 				     card->name);
297 	}
298 	return 0;
299 }
300 
301 #ifdef CONFIG_ACPI
302 static const struct acpi_device_id st_audio_acpi_match[] = {
303 	{"AMDI8336", 0},
304 	{},
305 };
306 MODULE_DEVICE_TABLE(acpi, st_audio_acpi_match);
307 #endif
308 
309 static struct platform_driver st_mach_driver = {
310 	.driver = {
311 		.name = "st-es8316",
312 		.acpi_match_table = ACPI_PTR(st_audio_acpi_match),
313 		.pm = &snd_soc_pm_ops,
314 	},
315 	.probe = st_es8336_probe,
316 };
317 
318 module_platform_driver(st_mach_driver);
319 
320 MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
321 MODULE_DESCRIPTION("st-es8316 audio support");
322 MODULE_LICENSE("GPL v2");
323