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324 lines
8.7 KiB
324 lines
8.7 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* tegra_rt5677.c - Tegra machine ASoC driver for boards using RT5677 codec. |
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* |
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* Copyright (c) 2014, The Chromium OS Authors. All rights reserved. |
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* |
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* Based on code copyright/by: |
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* |
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* Copyright (C) 2010-2012 - NVIDIA, Inc. |
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* Copyright (C) 2011 The AC100 Kernel Team <[email protected]> |
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* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd. |
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* Copyright 2007 Wolfson Microelectronics PLC. |
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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/rt5677.h" |
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#include "tegra_asoc_utils.h" |
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#define DRV_NAME "tegra-snd-rt5677" |
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struct tegra_rt5677 { |
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struct tegra_asoc_utils_data util_data; |
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int gpio_hp_det; |
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int gpio_hp_en; |
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int gpio_mic_present; |
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int gpio_dmic_clk_en; |
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}; |
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static int tegra_rt5677_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 = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_card *card = rtd->card; |
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struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card); |
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int srate, mclk, err; |
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srate = params_rate(params); |
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mclk = 256 * srate; |
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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, RT5677_SCLK_S_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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static int tegra_rt5677_event_hp(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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struct snd_soc_dapm_context *dapm = w->dapm; |
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struct snd_soc_card *card = dapm->card; |
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struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card); |
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if (!gpio_is_valid(machine->gpio_hp_en)) |
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return 0; |
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gpio_set_value_cansleep(machine->gpio_hp_en, |
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SND_SOC_DAPM_EVENT_ON(event)); |
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return 0; |
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} |
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static const struct snd_soc_ops tegra_rt5677_ops = { |
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.hw_params = tegra_rt5677_asoc_hw_params, |
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}; |
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static struct snd_soc_jack tegra_rt5677_hp_jack; |
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static struct snd_soc_jack_pin tegra_rt5677_hp_jack_pins = { |
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.pin = "Headphone", |
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.mask = SND_JACK_HEADPHONE, |
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}; |
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static struct snd_soc_jack_gpio tegra_rt5677_hp_jack_gpio = { |
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.name = "Headphone detection", |
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.report = SND_JACK_HEADPHONE, |
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.debounce_time = 150, |
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}; |
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static struct snd_soc_jack tegra_rt5677_mic_jack; |
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static struct snd_soc_jack_pin tegra_rt5677_mic_jack_pins = { |
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.pin = "Headset Mic", |
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.mask = SND_JACK_MICROPHONE, |
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}; |
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static struct snd_soc_jack_gpio tegra_rt5677_mic_jack_gpio = { |
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.name = "Headset Mic detection", |
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.report = SND_JACK_MICROPHONE, |
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.debounce_time = 150, |
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.invert = 1 |
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}; |
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static const struct snd_soc_dapm_widget tegra_rt5677_dapm_widgets[] = { |
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SND_SOC_DAPM_SPK("Speaker", NULL), |
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SND_SOC_DAPM_HP("Headphone", tegra_rt5677_event_hp), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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SND_SOC_DAPM_MIC("Internal Mic 1", NULL), |
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SND_SOC_DAPM_MIC("Internal Mic 2", NULL), |
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}; |
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static const struct snd_kcontrol_new tegra_rt5677_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Speaker"), |
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SOC_DAPM_PIN_SWITCH("Headphone"), |
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SOC_DAPM_PIN_SWITCH("Headset Mic"), |
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SOC_DAPM_PIN_SWITCH("Internal Mic 1"), |
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SOC_DAPM_PIN_SWITCH("Internal Mic 2"), |
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}; |
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static int tegra_rt5677_asoc_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(rtd->card); |
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snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE, |
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&tegra_rt5677_hp_jack, |
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&tegra_rt5677_hp_jack_pins, 1); |
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if (gpio_is_valid(machine->gpio_hp_det)) { |
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tegra_rt5677_hp_jack_gpio.gpio = machine->gpio_hp_det; |
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snd_soc_jack_add_gpios(&tegra_rt5677_hp_jack, 1, |
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&tegra_rt5677_hp_jack_gpio); |
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} |
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snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE, |
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&tegra_rt5677_mic_jack, |
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&tegra_rt5677_mic_jack_pins, 1); |
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if (gpio_is_valid(machine->gpio_mic_present)) { |
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tegra_rt5677_mic_jack_gpio.gpio = machine->gpio_mic_present; |
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snd_soc_jack_add_gpios(&tegra_rt5677_mic_jack, 1, |
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&tegra_rt5677_mic_jack_gpio); |
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} |
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snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "MICBIAS1"); |
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return 0; |
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} |
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SND_SOC_DAILINK_DEFS(pcm, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5677-aif1")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link tegra_rt5677_dai = { |
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.name = "RT5677", |
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.stream_name = "RT5677 PCM", |
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.init = tegra_rt5677_asoc_init, |
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.ops = &tegra_rt5677_ops, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS, |
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SND_SOC_DAILINK_REG(pcm), |
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}; |
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static struct snd_soc_card snd_soc_tegra_rt5677 = { |
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.name = "tegra-rt5677", |
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.owner = THIS_MODULE, |
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.dai_link = &tegra_rt5677_dai, |
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.num_links = 1, |
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.controls = tegra_rt5677_controls, |
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.num_controls = ARRAY_SIZE(tegra_rt5677_controls), |
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.dapm_widgets = tegra_rt5677_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(tegra_rt5677_dapm_widgets), |
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.fully_routed = true, |
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}; |
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static int tegra_rt5677_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_rt5677; |
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struct tegra_rt5677 *machine; |
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int ret; |
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machine = devm_kzalloc(&pdev->dev, |
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sizeof(struct tegra_rt5677), 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->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0); |
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if (machine->gpio_hp_det == -EPROBE_DEFER) |
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return -EPROBE_DEFER; |
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machine->gpio_mic_present = of_get_named_gpio(np, |
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"nvidia,mic-present-gpios", 0); |
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if (machine->gpio_mic_present == -EPROBE_DEFER) |
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return -EPROBE_DEFER; |
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machine->gpio_hp_en = of_get_named_gpio(np, "nvidia,hp-en-gpios", 0); |
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if (machine->gpio_hp_en == -EPROBE_DEFER) |
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return -EPROBE_DEFER; |
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if (gpio_is_valid(machine->gpio_hp_en)) { |
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ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_en, |
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GPIOF_OUT_INIT_LOW, "hp_en"); |
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if (ret) { |
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dev_err(card->dev, "cannot get hp_en gpio\n"); |
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return ret; |
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} |
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} |
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machine->gpio_dmic_clk_en = of_get_named_gpio(np, |
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"nvidia,dmic-clk-en-gpios", 0); |
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if (machine->gpio_dmic_clk_en == -EPROBE_DEFER) |
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return -EPROBE_DEFER; |
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if (gpio_is_valid(machine->gpio_dmic_clk_en)) { |
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ret = devm_gpio_request_one(&pdev->dev, |
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machine->gpio_dmic_clk_en, |
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GPIOF_OUT_INIT_HIGH, "dmic_clk_en"); |
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if (ret) { |
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dev_err(card->dev, "cannot get dmic_clk_en gpio\n"); |
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return ret; |
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} |
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} |
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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_rt5677_dai.codecs->of_node = of_parse_phandle(np, |
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"nvidia,audio-codec", 0); |
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if (!tegra_rt5677_dai.codecs->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_rt5677_dai.cpus->of_node = of_parse_phandle(np, |
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"nvidia,i2s-controller", 0); |
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if (!tegra_rt5677_dai.cpus->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_put_codec_of_node; |
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} |
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tegra_rt5677_dai.platforms->of_node = tegra_rt5677_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 err_put_cpu_of_node; |
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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 err_put_cpu_of_node; |
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} |
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return 0; |
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err_put_cpu_of_node: |
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of_node_put(tegra_rt5677_dai.cpus->of_node); |
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tegra_rt5677_dai.cpus->of_node = NULL; |
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tegra_rt5677_dai.platforms->of_node = NULL; |
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err_put_codec_of_node: |
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of_node_put(tegra_rt5677_dai.codecs->of_node); |
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tegra_rt5677_dai.codecs->of_node = NULL; |
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err: |
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return ret; |
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} |
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static int tegra_rt5677_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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snd_soc_unregister_card(card); |
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tegra_rt5677_dai.platforms->of_node = NULL; |
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of_node_put(tegra_rt5677_dai.codecs->of_node); |
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tegra_rt5677_dai.codecs->of_node = NULL; |
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of_node_put(tegra_rt5677_dai.cpus->of_node); |
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tegra_rt5677_dai.cpus->of_node = NULL; |
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return 0; |
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} |
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static const struct of_device_id tegra_rt5677_of_match[] = { |
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{ .compatible = "nvidia,tegra-audio-rt5677", }, |
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{}, |
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}; |
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static struct platform_driver tegra_rt5677_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_rt5677_of_match, |
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}, |
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.probe = tegra_rt5677_probe, |
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.remove = tegra_rt5677_remove, |
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}; |
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module_platform_driver(tegra_rt5677_driver); |
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MODULE_AUTHOR("Anatol Pomozov <[email protected]>"); |
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MODULE_DESCRIPTION("Tegra+RT5677 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_rt5677_of_match);
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