2019-05-30 02:57:50 +03:00
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// SPDX-License-Identifier: GPL-2.0-only
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2012-05-18 02:59:51 +04:00
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/*
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* tegra_wm8753.c - Tegra machine ASoC driver for boards using WM8753 codec.
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*
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* Author: Stephen Warren <swarren@nvidia.com>
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* Copyright (C) 2010-2012 - NVIDIA, Inc.
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*
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* Based on code copyright/by:
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*
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* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
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*
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* Copyright 2007 Wolfson Microelectronics PLC.
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* Author: Graeme Gregory
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* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include "../codecs/wm8753.h"
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#include "tegra_asoc_utils.h"
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#define DRV_NAME "tegra-snd-wm8753"
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struct tegra_wm8753 {
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struct tegra_asoc_utils_data util_data;
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};
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static int tegra_wm8753_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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2014-07-18 00:01:06 +04:00
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struct snd_soc_card *card = rtd->card;
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2012-05-18 02:59:51 +04:00
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struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
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int srate, mclk;
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int err;
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srate = params_rate(params);
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switch (srate) {
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case 11025:
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case 22050:
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case 44100:
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case 88200:
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mclk = 11289600;
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break;
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default:
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mclk = 12288000;
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break;
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}
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err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
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if (err < 0) {
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dev_err(card->dev, "Can't configure clocks\n");
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return err;
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}
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err = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, mclk,
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SND_SOC_CLOCK_IN);
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if (err < 0) {
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dev_err(card->dev, "codec_dai clock not set\n");
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return err;
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}
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return 0;
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}
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2016-10-15 17:55:51 +03:00
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static const struct snd_soc_ops tegra_wm8753_ops = {
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2012-05-18 02:59:51 +04:00
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.hw_params = tegra_wm8753_hw_params,
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};
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static const struct snd_soc_dapm_widget tegra_wm8753_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Mic Jack", NULL),
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};
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2019-06-06 07:18:36 +03:00
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SND_SOC_DAILINK_DEFS(pcm,
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DAILINK_COMP_ARRAY(COMP_EMPTY()),
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2019-06-19 04:18:51 +03:00
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8753-hifi")));
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2019-06-06 07:18:36 +03:00
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2012-05-18 02:59:51 +04:00
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static struct snd_soc_dai_link tegra_wm8753_dai = {
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.name = "WM8753",
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.stream_name = "WM8753 PCM",
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.ops = &tegra_wm8753_ops,
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.dai_fmt = SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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2019-06-06 07:18:36 +03:00
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SND_SOC_DAILINK_REG(pcm),
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2012-05-18 02:59:51 +04:00
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};
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static struct snd_soc_card snd_soc_tegra_wm8753 = {
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.name = "tegra-wm8753",
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.owner = THIS_MODULE,
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.dai_link = &tegra_wm8753_dai,
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.num_links = 1,
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.dapm_widgets = tegra_wm8753_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(tegra_wm8753_dapm_widgets),
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.fully_routed = true,
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};
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2012-12-07 18:26:33 +04:00
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static int tegra_wm8753_driver_probe(struct platform_device *pdev)
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2012-05-18 02:59:51 +04:00
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{
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2013-02-16 04:07:31 +04:00
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struct device_node *np = pdev->dev.of_node;
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2012-05-18 02:59:51 +04:00
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struct snd_soc_card *card = &snd_soc_tegra_wm8753;
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struct tegra_wm8753 *machine;
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int ret;
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machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8753),
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GFP_KERNEL);
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2017-02-25 14:18:08 +03:00
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if (!machine)
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2013-02-16 04:07:31 +04:00
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return -ENOMEM;
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2012-05-18 02:59:51 +04:00
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card->dev = &pdev->dev;
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snd_soc_card_set_drvdata(card, machine);
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ret = snd_soc_of_parse_card_name(card, "nvidia,model");
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if (ret)
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goto err;
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ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
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if (ret)
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goto err;
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2019-06-06 07:18:36 +03:00
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tegra_wm8753_dai.codecs->of_node = of_parse_phandle(np,
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2013-02-16 04:07:31 +04:00
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"nvidia,audio-codec", 0);
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2019-06-06 07:18:36 +03:00
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if (!tegra_wm8753_dai.codecs->of_node) {
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2012-05-18 02:59:51 +04:00
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dev_err(&pdev->dev,
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"Property 'nvidia,audio-codec' missing or invalid\n");
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ret = -EINVAL;
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goto err;
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}
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2019-06-06 07:18:36 +03:00
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tegra_wm8753_dai.cpus->of_node = of_parse_phandle(np,
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2013-02-16 04:07:31 +04:00
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"nvidia,i2s-controller", 0);
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2019-06-06 07:18:36 +03:00
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if (!tegra_wm8753_dai.cpus->of_node) {
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2012-05-18 02:59:51 +04:00
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dev_err(&pdev->dev,
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"Property 'nvidia,i2s-controller' missing or invalid\n");
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ret = -EINVAL;
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goto err;
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}
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ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
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if (ret)
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goto err;
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ret = snd_soc_register_card(card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
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ret);
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goto err_fini_utils;
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}
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return 0;
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err_fini_utils:
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tegra_asoc_utils_fini(&machine->util_data);
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err:
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return ret;
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}
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2012-12-07 18:26:33 +04:00
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static int tegra_wm8753_driver_remove(struct platform_device *pdev)
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2012-05-18 02:59:51 +04:00
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
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snd_soc_unregister_card(card);
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tegra_asoc_utils_fini(&machine->util_data);
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return 0;
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}
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2012-11-19 22:25:33 +04:00
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static const struct of_device_id tegra_wm8753_of_match[] = {
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2012-05-18 02:59:51 +04:00
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{ .compatible = "nvidia,tegra-audio-wm8753", },
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{},
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};
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static struct platform_driver tegra_wm8753_driver = {
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.driver = {
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.name = DRV_NAME,
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.pm = &snd_soc_pm_ops,
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.of_match_table = tegra_wm8753_of_match,
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},
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.probe = tegra_wm8753_driver_probe,
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2012-12-07 18:26:33 +04:00
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.remove = tegra_wm8753_driver_remove,
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2012-05-18 02:59:51 +04:00
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};
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module_platform_driver(tegra_wm8753_driver);
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MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
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MODULE_DESCRIPTION("Tegra+WM8753 machine ASoC driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:" DRV_NAME);
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MODULE_DEVICE_TABLE(of, tegra_wm8753_of_match);
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