2 * tegra_rt5677.c - Tegra machine ASoC driver for boards using RT5677 codec.
4 * Copyright (c) 2014, The Chromium OS Authors. All rights reserved.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 * Based on code copyright/by:
20 * Copyright (C) 2010-2012 - NVIDIA, Inc.
21 * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
22 * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
23 * Copyright 2007 Wolfson Microelectronics PLC.
26 #include <linux/module.h>
27 #include <linux/platform_device.h>
28 #include <linux/slab.h>
29 #include <linux/gpio.h>
30 #include <linux/of_gpio.h>
32 #include <sound/core.h>
33 #include <sound/jack.h>
34 #include <sound/pcm.h>
35 #include <sound/pcm_params.h>
36 #include <sound/soc.h>
38 #include "../codecs/rt5677.h"
40 #include "tegra_asoc_utils.h"
42 #define DRV_NAME "tegra-snd-rt5677"
45 struct tegra_asoc_utils_data util_data
;
52 static int tegra_rt5677_asoc_hw_params(struct snd_pcm_substream
*substream
,
53 struct snd_pcm_hw_params
*params
)
55 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
56 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
57 struct snd_soc_card
*card
= rtd
->card
;
58 struct tegra_rt5677
*machine
= snd_soc_card_get_drvdata(card
);
61 srate
= params_rate(params
);
64 err
= tegra_asoc_utils_set_rate(&machine
->util_data
, srate
, mclk
);
66 dev_err(card
->dev
, "Can't configure clocks\n");
70 err
= snd_soc_dai_set_sysclk(codec_dai
, RT5677_SCLK_S_MCLK
, mclk
,
73 dev_err(card
->dev
, "codec_dai clock not set\n");
80 static int tegra_rt5677_event_hp(struct snd_soc_dapm_widget
*w
,
81 struct snd_kcontrol
*k
, int event
)
83 struct snd_soc_dapm_context
*dapm
= w
->dapm
;
84 struct snd_soc_card
*card
= dapm
->card
;
85 struct tegra_rt5677
*machine
= snd_soc_card_get_drvdata(card
);
87 if (!gpio_is_valid(machine
->gpio_hp_en
))
90 gpio_set_value_cansleep(machine
->gpio_hp_en
,
91 SND_SOC_DAPM_EVENT_ON(event
));
96 static struct snd_soc_ops tegra_rt5677_ops
= {
97 .hw_params
= tegra_rt5677_asoc_hw_params
,
100 static struct snd_soc_jack tegra_rt5677_hp_jack
;
102 static struct snd_soc_jack_pin tegra_rt5677_hp_jack_pins
= {
104 .mask
= SND_JACK_HEADPHONE
,
106 static struct snd_soc_jack_gpio tegra_rt5677_hp_jack_gpio
= {
107 .name
= "Headphone detection",
108 .report
= SND_JACK_HEADPHONE
,
109 .debounce_time
= 150,
112 static struct snd_soc_jack tegra_rt5677_mic_jack
;
114 static struct snd_soc_jack_pin tegra_rt5677_mic_jack_pins
= {
115 .pin
= "Headset Mic",
116 .mask
= SND_JACK_MICROPHONE
,
119 static struct snd_soc_jack_gpio tegra_rt5677_mic_jack_gpio
= {
120 .name
= "Headset Mic detection",
121 .report
= SND_JACK_MICROPHONE
,
122 .debounce_time
= 150,
126 static const struct snd_soc_dapm_widget tegra_rt5677_dapm_widgets
[] = {
127 SND_SOC_DAPM_SPK("Speaker", NULL
),
128 SND_SOC_DAPM_HP("Headphone", tegra_rt5677_event_hp
),
129 SND_SOC_DAPM_MIC("Headset Mic", NULL
),
130 SND_SOC_DAPM_MIC("Internal Mic 1", NULL
),
131 SND_SOC_DAPM_MIC("Internal Mic 2", NULL
),
134 static const struct snd_kcontrol_new tegra_rt5677_controls
[] = {
135 SOC_DAPM_PIN_SWITCH("Speaker"),
136 SOC_DAPM_PIN_SWITCH("Headphone"),
137 SOC_DAPM_PIN_SWITCH("Headset Mic"),
138 SOC_DAPM_PIN_SWITCH("Internal Mic 1"),
139 SOC_DAPM_PIN_SWITCH("Internal Mic 2"),
142 static int tegra_rt5677_asoc_init(struct snd_soc_pcm_runtime
*rtd
)
144 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
145 struct snd_soc_codec
*codec
= codec_dai
->codec
;
146 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
147 struct tegra_rt5677
*machine
= snd_soc_card_get_drvdata(rtd
->card
);
149 snd_soc_card_jack_new(rtd
->card
, "Headphone Jack", SND_JACK_HEADPHONE
,
150 &tegra_rt5677_hp_jack
,
151 &tegra_rt5677_hp_jack_pins
, 1);
153 if (gpio_is_valid(machine
->gpio_hp_det
)) {
154 tegra_rt5677_hp_jack_gpio
.gpio
= machine
->gpio_hp_det
;
155 snd_soc_jack_add_gpios(&tegra_rt5677_hp_jack
, 1,
156 &tegra_rt5677_hp_jack_gpio
);
160 snd_soc_card_jack_new(rtd
->card
, "Mic Jack", SND_JACK_MICROPHONE
,
161 &tegra_rt5677_mic_jack
,
162 &tegra_rt5677_mic_jack_pins
, 1);
164 if (gpio_is_valid(machine
->gpio_mic_present
)) {
165 tegra_rt5677_mic_jack_gpio
.gpio
= machine
->gpio_mic_present
;
166 snd_soc_jack_add_gpios(&tegra_rt5677_mic_jack
, 1,
167 &tegra_rt5677_mic_jack_gpio
);
170 snd_soc_dapm_force_enable_pin(dapm
, "MICBIAS1");
175 static int tegra_rt5677_card_remove(struct snd_soc_card
*card
)
177 struct tegra_rt5677
*machine
= snd_soc_card_get_drvdata(card
);
179 if (gpio_is_valid(machine
->gpio_hp_det
)) {
180 snd_soc_jack_free_gpios(&tegra_rt5677_hp_jack
, 1,
181 &tegra_rt5677_hp_jack_gpio
);
184 if (gpio_is_valid(machine
->gpio_mic_present
)) {
185 snd_soc_jack_free_gpios(&tegra_rt5677_mic_jack
, 1,
186 &tegra_rt5677_mic_jack_gpio
);
192 static struct snd_soc_dai_link tegra_rt5677_dai
= {
194 .stream_name
= "RT5677 PCM",
195 .codec_dai_name
= "rt5677-aif1",
196 .init
= tegra_rt5677_asoc_init
,
197 .ops
= &tegra_rt5677_ops
,
198 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
|
199 SND_SOC_DAIFMT_CBS_CFS
,
202 static struct snd_soc_card snd_soc_tegra_rt5677
= {
203 .name
= "tegra-rt5677",
204 .owner
= THIS_MODULE
,
205 .remove
= tegra_rt5677_card_remove
,
206 .dai_link
= &tegra_rt5677_dai
,
208 .controls
= tegra_rt5677_controls
,
209 .num_controls
= ARRAY_SIZE(tegra_rt5677_controls
),
210 .dapm_widgets
= tegra_rt5677_dapm_widgets
,
211 .num_dapm_widgets
= ARRAY_SIZE(tegra_rt5677_dapm_widgets
),
212 .fully_routed
= true,
215 static int tegra_rt5677_probe(struct platform_device
*pdev
)
217 struct device_node
*np
= pdev
->dev
.of_node
;
218 struct snd_soc_card
*card
= &snd_soc_tegra_rt5677
;
219 struct tegra_rt5677
*machine
;
222 machine
= devm_kzalloc(&pdev
->dev
,
223 sizeof(struct tegra_rt5677
), GFP_KERNEL
);
227 card
->dev
= &pdev
->dev
;
228 platform_set_drvdata(pdev
, card
);
229 snd_soc_card_set_drvdata(card
, machine
);
231 machine
->gpio_hp_det
= of_get_named_gpio(np
, "nvidia,hp-det-gpios", 0);
232 if (machine
->gpio_hp_det
== -EPROBE_DEFER
)
233 return -EPROBE_DEFER
;
235 machine
->gpio_mic_present
= of_get_named_gpio(np
,
236 "nvidia,mic-present-gpios", 0);
237 if (machine
->gpio_mic_present
== -EPROBE_DEFER
)
238 return -EPROBE_DEFER
;
240 machine
->gpio_hp_en
= of_get_named_gpio(np
, "nvidia,hp-en-gpios", 0);
241 if (machine
->gpio_hp_en
== -EPROBE_DEFER
)
242 return -EPROBE_DEFER
;
243 if (gpio_is_valid(machine
->gpio_hp_en
)) {
244 ret
= devm_gpio_request_one(&pdev
->dev
, machine
->gpio_hp_en
,
245 GPIOF_OUT_INIT_LOW
, "hp_en");
247 dev_err(card
->dev
, "cannot get hp_en gpio\n");
252 machine
->gpio_dmic_clk_en
= of_get_named_gpio(np
,
253 "nvidia,dmic-clk-en-gpios", 0);
254 if (machine
->gpio_dmic_clk_en
== -EPROBE_DEFER
)
255 return -EPROBE_DEFER
;
256 if (gpio_is_valid(machine
->gpio_dmic_clk_en
)) {
257 ret
= devm_gpio_request_one(&pdev
->dev
,
258 machine
->gpio_dmic_clk_en
,
259 GPIOF_OUT_INIT_HIGH
, "dmic_clk_en");
261 dev_err(card
->dev
, "cannot get dmic_clk_en gpio\n");
266 ret
= snd_soc_of_parse_card_name(card
, "nvidia,model");
270 ret
= snd_soc_of_parse_audio_routing(card
, "nvidia,audio-routing");
274 tegra_rt5677_dai
.codec_of_node
= of_parse_phandle(np
,
275 "nvidia,audio-codec", 0);
276 if (!tegra_rt5677_dai
.codec_of_node
) {
278 "Property 'nvidia,audio-codec' missing or invalid\n");
283 tegra_rt5677_dai
.cpu_of_node
= of_parse_phandle(np
,
284 "nvidia,i2s-controller", 0);
285 if (!tegra_rt5677_dai
.cpu_of_node
) {
287 "Property 'nvidia,i2s-controller' missing or invalid\n");
291 tegra_rt5677_dai
.platform_of_node
= tegra_rt5677_dai
.cpu_of_node
;
293 ret
= tegra_asoc_utils_init(&machine
->util_data
, &pdev
->dev
);
297 ret
= snd_soc_register_card(card
);
299 dev_err(&pdev
->dev
, "snd_soc_register_card failed (%d)\n",
307 tegra_asoc_utils_fini(&machine
->util_data
);
312 static int tegra_rt5677_remove(struct platform_device
*pdev
)
314 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
315 struct tegra_rt5677
*machine
= snd_soc_card_get_drvdata(card
);
317 snd_soc_unregister_card(card
);
319 tegra_asoc_utils_fini(&machine
->util_data
);
324 static const struct of_device_id tegra_rt5677_of_match
[] = {
325 { .compatible
= "nvidia,tegra-audio-rt5677", },
329 static struct platform_driver tegra_rt5677_driver
= {
332 .owner
= THIS_MODULE
,
333 .pm
= &snd_soc_pm_ops
,
334 .of_match_table
= tegra_rt5677_of_match
,
336 .probe
= tegra_rt5677_probe
,
337 .remove
= tegra_rt5677_remove
,
339 module_platform_driver(tegra_rt5677_driver
);
341 MODULE_AUTHOR("Anatol Pomozov <anatol@google.com>");
342 MODULE_DESCRIPTION("Tegra+RT5677 machine ASoC driver");
343 MODULE_LICENSE("GPL v2");
344 MODULE_ALIAS("platform:" DRV_NAME
);
345 MODULE_DEVICE_TABLE(of
, tegra_rt5677_of_match
);