Unverified Commit c07152d4 authored by Tzung-Bi Shih's avatar Tzung-Bi Shih Committed by Mark Brown
Browse files

ASoC: rt1015p: add codec driver 



Adds rt1015p codec driver.

Rt1015p is a rt1015 variant.
- It doesn't support I2C.
- It only supports S24, 48kHz, 64FS.

Signed-off-by: default avatarTzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200910042949.3795682-2-tzungbi@google.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7a8cca56

sound/soc/codecs/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -155,6 +155,7 @@ config SND_SOC_ALL_CODECS 
	imply SND_SOC_RT298

	imply SND_SOC_RT1011

	imply SND_SOC_RT1015

	imply SND_SOC_RT1015P

	imply SND_SOC_RT1305

	imply SND_SOC_RT1308

	imply SND_SOC_RT5514
@@ -1032,6 +1033,7 @@ config SND_SOC_RL6231 
	default y if SND_SOC_RT5682=y

	default y if SND_SOC_RT1011=y

	default y if SND_SOC_RT1015=y

	default y if SND_SOC_RT1015P=y

	default y if SND_SOC_RT1305=y

	default y if SND_SOC_RT1308=y

	default m if SND_SOC_RT5514=m
@@ -1049,6 +1051,7 @@ config SND_SOC_RL6231 
	default m if SND_SOC_RT5682=m

	default m if SND_SOC_RT1011=m

	default m if SND_SOC_RT1015=m

	default m if SND_SOC_RT1015P=m

	default m if SND_SOC_RT1305=m

	default m if SND_SOC_RT1308=m
@@ -1081,6 +1084,10 @@ config SND_SOC_RT1015 
	tristate

	depends on I2C



config SND_SOC_RT1015P

	tristate

	depends on GPIOLIB



config SND_SOC_RT1305

	tristate

	depends on I2C

sound/soc/codecs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -159,6 +159,7 @@ snd-soc-rl6231-objs := rl6231.o 
snd-soc-rl6347a-objs := rl6347a.o

snd-soc-rt1011-objs := rt1011.o

snd-soc-rt1015-objs := rt1015.o

snd-soc-rt1015p-objs := rt1015p.o

snd-soc-rt1305-objs := rt1305.o

snd-soc-rt1308-objs := rt1308.o

snd-soc-rt1308-sdw-objs := rt1308-sdw.o
@@ -465,6 +466,7 @@ obj-$(CONFIG_SND_SOC_RL6231) += snd-soc-rl6231.o 
obj-$(CONFIG_SND_SOC_RL6347A)	+= snd-soc-rl6347a.o

obj-$(CONFIG_SND_SOC_RT1011)	+= snd-soc-rt1011.o

obj-$(CONFIG_SND_SOC_RT1015)	+= snd-soc-rt1015.o

obj-$(CONFIG_SND_SOC_RT1015P)	+= snd-soc-rt1015p.o

obj-$(CONFIG_SND_SOC_RT1305)	+= snd-soc-rt1305.o

obj-$(CONFIG_SND_SOC_RT1308)	+= snd-soc-rt1308.o

obj-$(CONFIG_SND_SOC_RT1308_SDW)	+= snd-soc-rt1308-sdw.o

sound/soc/codecs/rt1015p.c

0 → 100644
+148 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

//

// rt1015p.c  --  RT1015P ALSA SoC audio amplifier driver

//

// Copyright 2020 The Linux Foundation. All rights reserved.



#include <linux/device.h>

#include <linux/err.h>

#include <linux/gpio.h>

#include <linux/gpio/consumer.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/platform_device.h>

#include <sound/pcm.h>

#include <sound/soc.h>

#include <sound/soc-dai.h>

#include <sound/soc-dapm.h>



struct rt1015p_priv {

	struct gpio_desc *sdb;

	int sdb_switch;

};



static int rt1015p_daiops_trigger(struct snd_pcm_substream *substream,

		int cmd, struct snd_soc_dai *dai)

{

	struct snd_soc_component *component = dai->component;

	struct rt1015p_priv *rt1015p =

		snd_soc_component_get_drvdata(component);



	if (!rt1015p->sdb)

		return 0;



	switch (cmd) {

	case SNDRV_PCM_TRIGGER_START:

	case SNDRV_PCM_TRIGGER_RESUME:

	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:

		if (rt1015p->sdb_switch) {

			gpiod_set_value(rt1015p->sdb, 1);

			dev_dbg(component->dev, "set sdb to 1");

		}

		break;

	case SNDRV_PCM_TRIGGER_STOP:

	case SNDRV_PCM_TRIGGER_SUSPEND:

	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:

		gpiod_set_value(rt1015p->sdb, 0);

		dev_dbg(component->dev, "set sdb to 0");

		break;

	}



	return 0;

}



static int rt1015p_sdb_event(struct snd_soc_dapm_widget *w,

		struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_component *component =

		snd_soc_dapm_to_component(w->dapm);

	struct rt1015p_priv *rt1015p =

		snd_soc_component_get_drvdata(component);



	if (event & SND_SOC_DAPM_POST_PMU)

		rt1015p->sdb_switch = 1;

	else if (event & SND_SOC_DAPM_POST_PMD)

		rt1015p->sdb_switch = 0;



	return 0;

}



static const struct snd_soc_dapm_widget rt1015p_dapm_widgets[] = {

	SND_SOC_DAPM_OUTPUT("Speaker"),

	SND_SOC_DAPM_OUT_DRV_E("SDB", SND_SOC_NOPM, 0, 0, NULL, 0,

			rt1015p_sdb_event,

			SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),

};



static const struct snd_soc_dapm_route rt1015p_dapm_routes[] = {

	{"SDB", NULL, "HiFi Playback"},

	{"Speaker", NULL, "SDB"},

};



static const struct snd_soc_component_driver rt1015p_component_driver = {

	.dapm_widgets		= rt1015p_dapm_widgets,

	.num_dapm_widgets	= ARRAY_SIZE(rt1015p_dapm_widgets),

	.dapm_routes		= rt1015p_dapm_routes,

	.num_dapm_routes	= ARRAY_SIZE(rt1015p_dapm_routes),

	.idle_bias_on		= 1,

	.use_pmdown_time	= 1,

	.endianness		= 1,

	.non_legacy_dai_naming	= 1,

};



static const struct snd_soc_dai_ops rt1015p_dai_ops = {

	.trigger        = rt1015p_daiops_trigger,

};



static struct snd_soc_dai_driver rt1015p_dai_driver = {

	.name = "HiFi",

	.playback = {

		.stream_name	= "HiFi Playback",

		.formats	= SNDRV_PCM_FMTBIT_S24,

		.rates		= SNDRV_PCM_RATE_48000,

		.channels_min	= 1,

		.channels_max	= 2,

	},

	.ops    = &rt1015p_dai_ops,

};



static int rt1015p_platform_probe(struct platform_device *pdev)

{

	struct rt1015p_priv *rt1015p;



	rt1015p = devm_kzalloc(&pdev->dev, sizeof(*rt1015p), GFP_KERNEL);

	if (!rt1015p)

		return -ENOMEM;



	rt1015p->sdb = devm_gpiod_get_optional(&pdev->dev,

				"sdb", GPIOD_OUT_LOW);

	if (IS_ERR(rt1015p->sdb))

		return PTR_ERR(rt1015p->sdb);



	dev_set_drvdata(&pdev->dev, rt1015p);



	return devm_snd_soc_register_component(&pdev->dev,

			&rt1015p_component_driver,

			&rt1015p_dai_driver, 1);

}



#ifdef CONFIG_OF

static const struct of_device_id rt1015p_device_id[] = {

	{ .compatible = "realtek,rt1015p" },

	{}

};

MODULE_DEVICE_TABLE(of, rt1015p_device_id);

#endif



static struct platform_driver rt1015p_platform_driver = {

	.driver = {

		.name = "rt1015p",

		.of_match_table = of_match_ptr(rt1015p_device_id),

	},

	.probe = rt1015p_platform_probe,

};

module_platform_driver(rt1015p_platform_driver);



MODULE_DESCRIPTION("ASoC RT1015P driver");

MODULE_LICENSE("GPL v2");

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