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Message-ID: <d10c08abb3e92598ce7ff3663db7dd70ec2d3c65.1744245663.git.cy_huang@richtek.com>
Date: Thu, 10 Apr 2025 08:58:13 +0800
From: <cy_huang@...htek.com>
To: Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>, Krzysztof
Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
CC: Liam Girdwood <lgirdwood@...il.com>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>, ChiYuan Huang <cy_huang@...htek.com>, Otto lin
<otto_lin@...htek.com>, Allen Lin <allen_lin@...htek.com>,
<devicetree@...r.kernel.org>, <linux-sound@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v2 4/4] ASoC: codecs: Add support for Richtek rt9123p
From: ChiYuan Huang <cy_huang@...htek.com>
Add codec driver for Richtek rt9123p.
Signed-off-by: ChiYuan Huang <cy_huang@...htek.com>
---
v2
- Update the property parsing from 'enable-delay' to 'enable-delay-ms'
---
sound/soc/codecs/Kconfig | 6 ++
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/rt9123p.c | 171 +++++++++++++++++++++++++++++++++++++
3 files changed, 179 insertions(+)
create mode 100644 sound/soc/codecs/rt9123p.c
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index c61b2d3cf284..b0fa935846c0 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -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
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index d8d0bc367af8..fba699701804 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -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
diff --git a/sound/soc/codecs/rt9123p.c b/sound/soc/codecs/rt9123p.c
new file mode 100644
index 000000000000..d509659e735b
--- /dev/null
+++ b/sound/soc/codecs/rt9123p.c
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// rt9123p.c -- RT9123 (HW Mode) ALSA SoC Codec driver
+//
+// Author: ChiYuan Huang <cy_huang@...htek.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@...htek.com>");
+MODULE_DESCRIPTION("ASoC rt9123p Driver");
+MODULE_LICENSE("GPL");
--
2.34.1
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