1 // SPDX-License-Identifier: GPL-2.0-only
3 * tegra_sgtl5000.c - Tegra machine ASoC driver for boards using SGTL5000 codec
5 * Author: Marcel Ziswiler <marcel@ziswiler.com>
7 * Based on code copyright/by:
9 * Copyright (C) 2010-2012 - NVIDIA, Inc.
10 * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
11 * Copyright 2007 Wolfson Microelectronics PLC.
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
16 #include <linux/slab.h>
17 #include <linux/gpio.h>
18 #include <linux/of_gpio.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
25 #include "../codecs/sgtl5000.h"
27 #include "tegra_asoc_utils.h"
29 #define DRV_NAME "tegra-snd-sgtl5000"
31 struct tegra_sgtl5000 {
32 struct tegra_asoc_utils_data util_data;
35 static int tegra_sgtl5000_hw_params(struct snd_pcm_substream *substream,
36 struct snd_pcm_hw_params *params)
38 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
39 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
40 struct snd_soc_card *card = rtd->card;
41 struct tegra_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
45 srate = params_rate(params);
58 err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
60 dev_err(card->dev, "Can't configure clocks\n");
64 err = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk,
67 dev_err(card->dev, "codec_dai clock not set\n");
74 static const struct snd_soc_ops tegra_sgtl5000_ops = {
75 .hw_params = tegra_sgtl5000_hw_params,
78 static const struct snd_soc_dapm_widget tegra_sgtl5000_dapm_widgets[] = {
79 SND_SOC_DAPM_HP("Headphone Jack", NULL),
80 SND_SOC_DAPM_LINE("Line In Jack", NULL),
81 SND_SOC_DAPM_MIC("Mic Jack", NULL),
84 SND_SOC_DAILINK_DEFS(hifi,
85 DAILINK_COMP_ARRAY(COMP_EMPTY()),
86 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")),
87 DAILINK_COMP_ARRAY(COMP_EMPTY()));
89 static struct snd_soc_dai_link tegra_sgtl5000_dai = {
91 .stream_name = "HiFi",
92 .ops = &tegra_sgtl5000_ops,
93 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
94 SND_SOC_DAIFMT_CBS_CFS,
95 SND_SOC_DAILINK_REG(hifi),
98 static struct snd_soc_card snd_soc_tegra_sgtl5000 = {
99 .name = "tegra-sgtl5000",
100 .driver_name = "tegra",
101 .owner = THIS_MODULE,
102 .dai_link = &tegra_sgtl5000_dai,
104 .dapm_widgets = tegra_sgtl5000_dapm_widgets,
105 .num_dapm_widgets = ARRAY_SIZE(tegra_sgtl5000_dapm_widgets),
106 .fully_routed = true,
109 static int tegra_sgtl5000_driver_probe(struct platform_device *pdev)
111 struct device_node *np = pdev->dev.of_node;
112 struct snd_soc_card *card = &snd_soc_tegra_sgtl5000;
113 struct tegra_sgtl5000 *machine;
116 machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_sgtl5000),
121 card->dev = &pdev->dev;
122 snd_soc_card_set_drvdata(card, machine);
124 ret = snd_soc_of_parse_card_name(card, "nvidia,model");
128 ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
132 tegra_sgtl5000_dai.codecs->of_node = of_parse_phandle(np,
133 "nvidia,audio-codec", 0);
134 if (!tegra_sgtl5000_dai.codecs->of_node) {
136 "Property 'nvidia,audio-codec' missing or invalid\n");
141 tegra_sgtl5000_dai.cpus->of_node = of_parse_phandle(np,
142 "nvidia,i2s-controller", 0);
143 if (!tegra_sgtl5000_dai.cpus->of_node) {
145 "Property 'nvidia,i2s-controller' missing/invalid\n");
147 goto err_put_codec_of_node;
150 tegra_sgtl5000_dai.platforms->of_node = tegra_sgtl5000_dai.cpus->of_node;
152 ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
154 goto err_put_cpu_of_node;
156 ret = snd_soc_register_card(card);
158 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
160 goto err_put_cpu_of_node;
166 of_node_put(tegra_sgtl5000_dai.cpus->of_node);
167 tegra_sgtl5000_dai.cpus->of_node = NULL;
168 tegra_sgtl5000_dai.platforms->of_node = NULL;
169 err_put_codec_of_node:
170 of_node_put(tegra_sgtl5000_dai.codecs->of_node);
171 tegra_sgtl5000_dai.codecs->of_node = NULL;
176 static int tegra_sgtl5000_driver_remove(struct platform_device *pdev)
178 struct snd_soc_card *card = platform_get_drvdata(pdev);
181 ret = snd_soc_unregister_card(card);
183 of_node_put(tegra_sgtl5000_dai.cpus->of_node);
184 tegra_sgtl5000_dai.cpus->of_node = NULL;
185 tegra_sgtl5000_dai.platforms->of_node = NULL;
186 of_node_put(tegra_sgtl5000_dai.codecs->of_node);
187 tegra_sgtl5000_dai.codecs->of_node = NULL;
192 static const struct of_device_id tegra_sgtl5000_of_match[] = {
193 { .compatible = "nvidia,tegra-audio-sgtl5000", },
197 static struct platform_driver tegra_sgtl5000_driver = {
200 .pm = &snd_soc_pm_ops,
201 .of_match_table = tegra_sgtl5000_of_match,
203 .probe = tegra_sgtl5000_driver_probe,
204 .remove = tegra_sgtl5000_driver_remove,
206 module_platform_driver(tegra_sgtl5000_driver);
208 MODULE_AUTHOR("Marcel Ziswiler <marcel@ziswiler.com>");
209 MODULE_DESCRIPTION("Tegra SGTL5000 machine ASoC driver");
210 MODULE_LICENSE("GPL v2");
211 MODULE_ALIAS("platform:" DRV_NAME);
212 MODULE_DEVICE_TABLE(of, tegra_sgtl5000_of_match);