forked from Minki/linux
f726536fc0
Tegra only supports, and always enables, device tree. Remove all runtime checks for DT support from the driver. Also, various minor cleanups so that the probe() body more closely resembles other drivers, for easier comparison. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
260 lines
6.6 KiB
C
260 lines
6.6 KiB
C
/*
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* tegra_alc5632.c -- Toshiba AC100(PAZ00) machine ASoC driver
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*
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* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
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* Copyright (C) 2012 - NVIDIA, Inc.
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*
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* Authors: Leon Romanovsky <leon@leon.nu>
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* Andrey Danin <danindrey@mail.ru>
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* Marc Dietrich <marvin24@gmx.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <asm/mach-types.h>
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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/alc5632.h"
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#include "tegra_asoc_utils.h"
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#define DRV_NAME "tegra-alc5632"
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struct tegra_alc5632 {
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struct tegra_asoc_utils_data util_data;
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int gpio_hp_det;
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};
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static int tegra_alc5632_asoc_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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struct snd_soc_codec *codec = codec_dai->codec;
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struct snd_soc_card *card = codec->card;
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struct tegra_alc5632 *alc5632 = 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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mclk = 512 * srate;
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err = tegra_asoc_utils_set_rate(&alc5632->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, 0, 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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static struct snd_soc_ops tegra_alc5632_asoc_ops = {
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.hw_params = tegra_alc5632_asoc_hw_params,
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};
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static struct snd_soc_jack tegra_alc5632_hs_jack;
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static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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{
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.pin = "Headset Stereophone",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
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.name = "Headset detection",
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.report = SND_JACK_HEADSET,
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.debounce_time = 150,
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};
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static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
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SND_SOC_DAPM_SPK("Int Spk", NULL),
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Digital Mic", NULL),
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};
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static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
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SOC_DAPM_PIN_SWITCH("Int Spk"),
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};
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static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_codec *codec = codec_dai->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(codec->card);
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snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
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&tegra_alc5632_hs_jack);
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snd_soc_jack_add_pins(&tegra_alc5632_hs_jack,
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ARRAY_SIZE(tegra_alc5632_hs_jack_pins),
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tegra_alc5632_hs_jack_pins);
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if (gpio_is_valid(machine->gpio_hp_det)) {
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tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
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snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
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1,
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&tegra_alc5632_hp_jack_gpio);
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}
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snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
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return 0;
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}
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static struct snd_soc_dai_link tegra_alc5632_dai = {
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.name = "ALC5632",
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.stream_name = "ALC5632 PCM",
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.codec_dai_name = "alc5632-hifi",
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.init = tegra_alc5632_asoc_init,
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.ops = &tegra_alc5632_asoc_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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};
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static struct snd_soc_card snd_soc_tegra_alc5632 = {
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.name = "tegra-alc5632",
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.owner = THIS_MODULE,
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.dai_link = &tegra_alc5632_dai,
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.num_links = 1,
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.controls = tegra_alc5632_controls,
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.num_controls = ARRAY_SIZE(tegra_alc5632_controls),
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.dapm_widgets = tegra_alc5632_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
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.fully_routed = true,
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};
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static int tegra_alc5632_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_alc5632;
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struct tegra_alc5632 *alc5632;
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int ret;
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alc5632 = devm_kzalloc(&pdev->dev,
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sizeof(struct tegra_alc5632), GFP_KERNEL);
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if (!alc5632) {
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dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
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return -ENOMEM;
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}
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card->dev = &pdev->dev;
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platform_set_drvdata(pdev, card);
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snd_soc_card_set_drvdata(card, alc5632);
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alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
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if (alc5632->gpio_hp_det == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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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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tegra_alc5632_dai.codec_of_node = of_parse_phandle(
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pdev->dev.of_node, "nvidia,audio-codec", 0);
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if (!tegra_alc5632_dai.codec_of_node) {
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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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tegra_alc5632_dai.cpu_of_node = of_parse_phandle(np,
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"nvidia,i2s-controller", 0);
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if (!tegra_alc5632_dai.cpu_of_node) {
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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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tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
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ret = tegra_asoc_utils_init(&alc5632->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(&alc5632->util_data);
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err:
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return ret;
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}
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static int tegra_alc5632_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_alc5632 *machine = snd_soc_card_get_drvdata(card);
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snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
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&tegra_alc5632_hp_jack_gpio);
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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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static const struct of_device_id tegra_alc5632_of_match[] = {
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{ .compatible = "nvidia,tegra-audio-alc5632", },
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{},
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};
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static struct platform_driver tegra_alc5632_driver = {
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.driver = {
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.name = DRV_NAME,
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = tegra_alc5632_of_match,
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},
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.probe = tegra_alc5632_probe,
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.remove = tegra_alc5632_remove,
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};
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module_platform_driver(tegra_alc5632_driver);
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MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
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MODULE_DESCRIPTION("Tegra+ALC5632 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_alc5632_of_match);
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