Unverified Commit 38c2585c authored by ChiYuan Huang's avatar ChiYuan Huang Committed by Mark Brown
Browse files

ASoC: codecs: Add support for Richtek rt9123p 



Add codec driver for Richtek rt9123p.

Signed-off-by: default avatarChiYuan Huang <cy_huang@richtek.com>
Link: https://patch.msgid.link/d10c08abb3e92598ce7ff3663db7dd70ec2d3c65.1744245663.git.cy_huang@richtek.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4a046b67

sound/soc/codecs/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -1832,6 +1832,12 @@ config SND_SOC_RT9123 
	  Enable support for the I2C control mode of Richtek RT9123 3.2W mono

	  Class-D audio amplifier.



config SND_SOC_RT9123P

	tristate "Richtek RT9123P Mono Class-D Amplifier"

	help

	  Enable support for the HW control mode of Richtek RT9123P 3.2W mono

	  Class-D audio amplifier.



config SND_SOC_RTQ9128

	tristate "Richtek RTQ9128 45W Digital Input Amplifier"

	depends on I2C

sound/soc/codecs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -271,6 +271,7 @@ snd-soc-rt721-sdca-y := rt721-sdca.o rt721-sdca-sdw.o 
snd-soc-rt722-sdca-y := rt722-sdca.o rt722-sdca-sdw.o

snd-soc-rt9120-y := rt9120.o

snd-soc-rt9123-y := rt9123.o

snd-soc-rt9123p-y := rt9123p.o

snd-soc-rtq9128-y := rtq9128.o

snd-soc-sdw-mockup-y := sdw-mockup.o

snd-soc-sgtl5000-y := sgtl5000.o
@@ -686,6 +687,7 @@ obj-$(CONFIG_SND_SOC_RT721_SDCA_SDW) += snd-soc-rt721-sdca.o 
obj-$(CONFIG_SND_SOC_RT722_SDCA_SDW)     += snd-soc-rt722-sdca.o

obj-$(CONFIG_SND_SOC_RT9120)	+= snd-soc-rt9120.o

obj-$(CONFIG_SND_SOC_RT9123)	+= snd-soc-rt9123.o

obj-$(CONFIG_SND_SOC_RT9123P)	+= snd-soc-rt9123p.o

obj-$(CONFIG_SND_SOC_RTQ9128)	+= snd-soc-rtq9128.o

obj-$(CONFIG_SND_SOC_SDW_MOCKUP)     += snd-soc-sdw-mockup.o

obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o

sound/soc/codecs/rt9123p.c

0 → 100644
+171 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

//

// rt9123p.c -- RT9123 (HW Mode) ALSA SoC Codec driver

//

// Author: ChiYuan Huang <cy_huang@richtek.com>



#include <linux/acpi.h>

#include <linux/delay.h>

#include <linux/err.h>

#include <linux/gpio/consumer.h>

#include <linux/kernel.h>

#include <linux/mod_devicetable.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/platform_device.h>

#include <linux/property.h>

#include <sound/pcm.h>

#include <sound/soc.h>

#include <sound/soc-dai.h>

#include <sound/soc-dapm.h>



struct rt9123p_priv {

	struct gpio_desc *enable;

	unsigned int enable_delay;

	int enable_switch;

};



static int rt9123p_daiops_trigger(struct snd_pcm_substream *substream, int cmd,

				  struct snd_soc_dai *dai)

{

	struct snd_soc_component *comp = dai->component;

	struct rt9123p_priv *rt9123p = snd_soc_component_get_drvdata(comp);



	if (!rt9123p->enable)

		return 0;



	switch (cmd) {

	case SNDRV_PCM_TRIGGER_START:

	case SNDRV_PCM_TRIGGER_RESUME:

	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:

		mdelay(rt9123p->enable_delay);

		if (rt9123p->enable_switch) {

			gpiod_set_value(rt9123p->enable, 1);

			dev_dbg(comp->dev, "set enable to 1");

		}

		break;

	case SNDRV_PCM_TRIGGER_STOP:

	case SNDRV_PCM_TRIGGER_SUSPEND:

	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:

		gpiod_set_value(rt9123p->enable, 0);

		dev_dbg(comp->dev, "set enable to 0");

		break;

	default:

		break;

	}



	return 0;

}



static int rt9123p_enable_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol,

				int event)

{

	struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm);

	struct rt9123p_priv *rt9123p = snd_soc_component_get_drvdata(comp);



	if (event & SND_SOC_DAPM_POST_PMU)

		rt9123p->enable_switch = 1;

	else if (event & SND_SOC_DAPM_POST_PMD)

		rt9123p->enable_switch = 0;



	return 0;

}



static const struct snd_soc_dapm_widget rt9123p_dapm_widgets[] = {

	SND_SOC_DAPM_OUTPUT("SPK"),

	SND_SOC_DAPM_OUT_DRV_E("Amp Drv", SND_SOC_NOPM, 0, 0, NULL, 0, rt9123p_enable_event,

			       SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),

};



static const struct snd_soc_dapm_route rt9123p_dapm_routes[] = {

	{"Amp Drv", NULL, "HiFi Playback"},

	{"SPK", NULL, "Amp Drv"},

};



static const struct snd_soc_component_driver rt9123p_comp_driver = {

	.dapm_widgets		= rt9123p_dapm_widgets,

	.num_dapm_widgets	= ARRAY_SIZE(rt9123p_dapm_widgets),

	.dapm_routes		= rt9123p_dapm_routes,

	.num_dapm_routes	= ARRAY_SIZE(rt9123p_dapm_routes),

	.idle_bias_on		= 1,

	.use_pmdown_time	= 1,

	.endianness		= 1,

};



static const struct snd_soc_dai_ops rt9123p_dai_ops = {

	.trigger        = rt9123p_daiops_trigger,

};



static struct snd_soc_dai_driver rt9123p_dai_driver = {

	.name = "HiFi",

	.playback = {

		.stream_name	= "HiFi Playback",

		.formats	= SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_S24 |

				  SNDRV_PCM_FMTBIT_S32,

		.rates		= SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |

				  SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_24000 |

				  SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |

				  SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |

				  SNDRV_PCM_RATE_96000,

		.rate_min	= 8000,

		.rate_max	= 96000,

		.channels_min	= 1,

		.channels_max	= 2,

	},

	.ops    = &rt9123p_dai_ops,

};



static int rt9123p_platform_probe(struct platform_device *pdev)

{

	struct device *dev = &pdev->dev;

	struct rt9123p_priv *rt9123p;

	int ret;



	rt9123p = devm_kzalloc(dev, sizeof(*rt9123p), GFP_KERNEL);

	if (!rt9123p)

		return -ENOMEM;



	rt9123p->enable = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW);

	if (IS_ERR(rt9123p->enable))

		return PTR_ERR(rt9123p->enable);



	ret = device_property_read_u32(dev, "enable-delay-ms", &rt9123p->enable_delay);

	if (ret) {

		rt9123p->enable_delay = 0;

		dev_dbg(dev, "no optional property 'enable-delay-ms' found, default: no delay\n");

	}



	platform_set_drvdata(pdev, rt9123p);



	return devm_snd_soc_register_component(dev, &rt9123p_comp_driver, &rt9123p_dai_driver, 1);

}



#ifdef CONFIG_OF

static const struct of_device_id rt9123p_device_id[] = {

	{ .compatible = "richtek,rt9123p" },

	{}

};

MODULE_DEVICE_TABLE(of, rt9123p_device_id);

#endif



#ifdef CONFIG_ACPI

static const struct acpi_device_id rt9123p_acpi_match[] = {

	{ "RT9123P", 0 },

	{}

};

MODULE_DEVICE_TABLE(acpi, rt9123p_acpi_match);

#endif



static struct platform_driver rt9123p_platform_driver = {

	.driver = {

		.name = "rt9123p",

		.of_match_table = of_match_ptr(rt9123p_device_id),

		.acpi_match_table = ACPI_PTR(rt9123p_acpi_match),

	},

	.probe	= rt9123p_platform_probe,

};

module_platform_driver(rt9123p_platform_driver);



MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");

MODULE_DESCRIPTION("ASoC rt9123p Driver");

MODULE_LICENSE("GPL");