ASoC: dio2125: add dio2125 amp driver (85825d5e) · Commits · 戴 / test

sound/soc/codecs/Kconfig

+5 −0

Original line number	Diff line number	Diff line
		@@ -69,6 +69,7 @@ config SND_SOC_ALL_CODECS
		select SND_SOC_DA7219 if I2C
		select SND_SOC_DA732X if I2C
		select SND_SOC_DA9055 if I2C
		select SND_SOC_DIO2125
		select SND_SOC_DMIC
		select SND_SOC_ES8328_SPI if SPI_MASTER
		select SND_SOC_ES8328_I2C if I2C
		@@ -516,6 +517,10 @@ config SND_SOC_DA732X
		config SND_SOC_DA9055
		tristate

		config SND_SOC_DIO2125
		tristate "Dioo DIO2125 Amplifier"
		select GPIOLIB

		config SND_SOC_DMIC
		tristate

sound/soc/codecs/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -221,6 +221,7 @@ snd-soc-wm9712-objs := wm9712.o
		snd-soc-wm9713-objs := wm9713.o
		snd-soc-wm-hubs-objs := wm_hubs.o
		# Amp
		snd-soc-dio2125-objs := dio2125.o
		snd-soc-max9877-objs := max9877.o
		snd-soc-max98504-objs := max98504.o
		snd-soc-tpa6130a2-objs := tpa6130a2.o
		@@ -448,6 +449,7 @@ obj-$(CONFIG_SND_SOC_WM_ADSP) += snd-soc-wm-adsp.o
		obj-$(CONFIG_SND_SOC_WM_HUBS) += snd-soc-wm-hubs.o

		# Amp
		obj-$(CONFIG_SND_SOC_DIO2125) += snd-soc-dio2125.o
		obj-$(CONFIG_SND_SOC_MAX9877) += snd-soc-max9877.o
		obj-$(CONFIG_SND_SOC_MAX98504) += snd-soc-max98504.o
		obj-$(CONFIG_SND_SOC_TPA6130A2) += snd-soc-tpa6130a2.o

sound/soc/codecs/dio2125.c

0 → 100644

+120 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2017 BayLibre, SAS.
		* Author: Jerome Brunet <jbrunet@baylibre.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of version 2 of the GNU General Public License as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful, but
		* WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		* General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, see <http://www.gnu.org/licenses/>.
		* The full GNU General Public License is included in this distribution
		* in the file called COPYING.
		*/

		#include <linux/gpio/consumer.h>
		#include <linux/module.h>
		#include <sound/soc.h>

		#define DRV_NAME "dio2125"

		struct dio2125 {
		struct gpio_desc *gpiod_enable;
		};

		static int drv_event(struct snd_soc_dapm_widget *w,
		struct snd_kcontrol *control, int event)
		{
		struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
		struct dio2125 *priv = snd_soc_component_get_drvdata(c);
		int val;

		switch (event) {
		case SND_SOC_DAPM_POST_PMU:
		val = 1;
		break;
		case SND_SOC_DAPM_PRE_PMD:
		val = 0;
		break;
		default:
		WARN(1, "Unexpected event");
		return -EINVAL;
		}

		gpiod_set_value(priv->gpiod_enable, val);

		return 0;
		}

		static const struct snd_soc_dapm_widget dio2125_dapm_widgets[] = {
		SND_SOC_DAPM_INPUT("INL"),
		SND_SOC_DAPM_INPUT("INR"),
		SND_SOC_DAPM_OUT_DRV_E("DRV", SND_SOC_NOPM, 0, 0, NULL, 0, drv_event,
		(SND_SOC_DAPM_POST_PMU \| SND_SOC_DAPM_PRE_PMD)),
		SND_SOC_DAPM_OUTPUT("OUTL"),
		SND_SOC_DAPM_OUTPUT("OUTR"),
		};

		static const struct snd_soc_dapm_route dio2125_dapm_routes[] = {
		{ "DRV", NULL, "INL" },
		{ "DRV", NULL, "INR" },
		{ "OUTL", NULL, "DRV" },
		{ "OUTR", NULL, "DRV" },
		};

		static const struct snd_soc_component_driver dio2125_component_driver = {
		.dapm_widgets = dio2125_dapm_widgets,
		.num_dapm_widgets = ARRAY_SIZE(dio2125_dapm_widgets),
		.dapm_routes = dio2125_dapm_routes,
		.num_dapm_routes = ARRAY_SIZE(dio2125_dapm_routes),
		};

		static int dio2125_probe(struct platform_device *pdev)
		{
		struct device *dev = &pdev->dev;
		struct dio2125 *priv;
		int err;

		priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
		if (priv == NULL)
		return -ENOMEM;
		platform_set_drvdata(pdev, priv);

		priv->gpiod_enable = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
		if (IS_ERR(priv->gpiod_enable)) {
		err = PTR_ERR(priv->gpiod_enable);
		if (err != -EPROBE_DEFER)
		dev_err(dev, "Failed to get 'enable' gpio: %d", err);
		return err;
		}

		return devm_snd_soc_register_component(dev, &dio2125_component_driver,
		NULL, 0);
		}

		#ifdef CONFIG_OF
		static const struct of_device_id dio2125_ids[] = {
		{ .compatible = "dioo,dio2125", },
		{ }
		};
		MODULE_DEVICE_TABLE(of, dio2125_ids);
		#endif

		static struct platform_driver dio2125_driver = {
		.driver = {
		.name = DRV_NAME,
		.of_match_table = of_match_ptr(dio2125_ids),
		},
		.probe = dio2125_probe,
		};

		module_platform_driver(dio2125_driver);

		MODULE_DESCRIPTION("ASoC DIO2125 output driver");
		MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
		MODULE_LICENSE("GPL");

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