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166 lines
4.1 KiB
166 lines
4.1 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* tegra20_wm9712.c - Tegra machine ASoC driver for boards using WM9712 codec. |
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* |
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* Copyright 2012 Lucas Stach <[email protected]> |
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* |
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* Partly based on code copyright/by: |
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* Copyright 2011,2012 Toradex Inc. |
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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 "tegra_asoc_utils.h" |
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#define DRV_NAME "tegra-snd-wm9712" |
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struct tegra_wm9712 { |
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struct platform_device *codec; |
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struct tegra_asoc_utils_data util_data; |
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}; |
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static const struct snd_soc_dapm_widget tegra_wm9712_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone", NULL), |
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SND_SOC_DAPM_LINE("LineIn", NULL), |
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SND_SOC_DAPM_MIC("Mic", NULL), |
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}; |
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static int tegra_wm9712_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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return snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "Mic Bias"); |
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} |
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SND_SOC_DAILINK_DEFS(hifi, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link tegra_wm9712_dai = { |
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.name = "AC97 HiFi", |
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.stream_name = "AC97 HiFi", |
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.init = tegra_wm9712_init, |
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SND_SOC_DAILINK_REG(hifi), |
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}; |
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static struct snd_soc_card snd_soc_tegra_wm9712 = { |
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.name = "tegra-wm9712", |
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.owner = THIS_MODULE, |
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.dai_link = &tegra_wm9712_dai, |
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.num_links = 1, |
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.dapm_widgets = tegra_wm9712_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(tegra_wm9712_dapm_widgets), |
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.fully_routed = true, |
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}; |
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static int tegra_wm9712_driver_probe(struct platform_device *pdev) |
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{ |
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struct device_node *np = pdev->dev.of_node; |
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struct snd_soc_card *card = &snd_soc_tegra_wm9712; |
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struct tegra_wm9712 *machine; |
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int ret; |
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machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm9712), |
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GFP_KERNEL); |
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if (!machine) |
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return -ENOMEM; |
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card->dev = &pdev->dev; |
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snd_soc_card_set_drvdata(card, machine); |
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machine->codec = platform_device_alloc("wm9712-codec", -1); |
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if (!machine->codec) { |
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dev_err(&pdev->dev, "Can't allocate wm9712 platform device\n"); |
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return -ENOMEM; |
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} |
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ret = platform_device_add(machine->codec); |
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if (ret) |
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goto codec_put; |
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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 codec_unregister; |
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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 codec_unregister; |
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tegra_wm9712_dai.cpus->of_node = of_parse_phandle(np, |
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"nvidia,ac97-controller", 0); |
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if (!tegra_wm9712_dai.cpus->of_node) { |
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dev_err(&pdev->dev, |
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"Property 'nvidia,ac97-controller' missing or invalid\n"); |
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ret = -EINVAL; |
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goto codec_unregister; |
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} |
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tegra_wm9712_dai.platforms->of_node = tegra_wm9712_dai.cpus->of_node; |
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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 codec_unregister; |
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ret = tegra_asoc_utils_set_ac97_rate(&machine->util_data); |
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if (ret) |
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goto codec_unregister; |
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ret = snd_soc_register_card(card); |
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if (ret) { |
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dev_err_probe(&pdev->dev, ret, |
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"snd_soc_register_card failed\n"); |
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goto codec_unregister; |
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} |
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return 0; |
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codec_unregister: |
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platform_device_del(machine->codec); |
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codec_put: |
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platform_device_put(machine->codec); |
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return ret; |
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} |
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static int tegra_wm9712_driver_remove(struct platform_device *pdev) |
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{ |
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struct snd_soc_card *card = platform_get_drvdata(pdev); |
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struct tegra_wm9712 *machine = snd_soc_card_get_drvdata(card); |
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snd_soc_unregister_card(card); |
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platform_device_unregister(machine->codec); |
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return 0; |
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} |
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static const struct of_device_id tegra_wm9712_of_match[] = { |
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{ .compatible = "nvidia,tegra-audio-wm9712", }, |
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{}, |
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}; |
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static struct platform_driver tegra_wm9712_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_wm9712_of_match, |
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}, |
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.probe = tegra_wm9712_driver_probe, |
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.remove = tegra_wm9712_driver_remove, |
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}; |
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module_platform_driver(tegra_wm9712_driver); |
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MODULE_AUTHOR("Lucas Stach"); |
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MODULE_DESCRIPTION("Tegra+WM9712 machine ASoC driver"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:" DRV_NAME); |
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MODULE_DEVICE_TABLE(of, tegra_wm9712_of_match);
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