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ASoC: support ROHM BD28623 codec
This patch adds support of the ROHM BD28623MUV Class D speaker amplifier for Flat-panel TVs. This IC delivers an output power of 20W + 20W. Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Katsuhiro Suzuki
Mark Brown
parent
f5ca3ab9bc
commit
f6d4b05217
@ -45,6 +45,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_ALC5623 if I2C
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select SND_SOC_ALC5632 if I2C
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select SND_SOC_BT_SCO
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select SND_SOC_BD28623
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select SND_SOC_CQ0093VC
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select SND_SOC_CS35L32 if I2C
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select SND_SOC_CS35L33 if I2C
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@ -405,6 +406,13 @@ config SND_SOC_ALC5623
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config SND_SOC_ALC5632
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tristate
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config SND_SOC_BD28623
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tristate "ROHM BD28623 CODEC"
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help
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Enable support for ROHM BD28623MUV Class D speaker amplifier.
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This codec does not have any control buses such as I2C, it
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detect format of I2S automatically.
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config SND_SOC_BT_SCO
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tristate "Dummy BT SCO codec driver"
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@ -35,6 +35,7 @@ snd-soc-ak4642-objs := ak4642.o
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snd-soc-ak4671-objs := ak4671.o
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snd-soc-ak5386-objs := ak5386.o
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snd-soc-arizona-objs := arizona.o
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snd-soc-bd28623-objs := bd28623.o
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snd-soc-bt-sco-objs := bt-sco.o
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snd-soc-cq93vc-objs := cq93vc.o
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snd-soc-cs35l32-objs := cs35l32.o
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@ -280,6 +281,7 @@ obj-$(CONFIG_SND_SOC_AK5386) += snd-soc-ak5386.o
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obj-$(CONFIG_SND_SOC_ALC5623) += snd-soc-alc5623.o
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obj-$(CONFIG_SND_SOC_ALC5632) += snd-soc-alc5632.o
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obj-$(CONFIG_SND_SOC_ARIZONA) += snd-soc-arizona.o
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obj-$(CONFIG_SND_SOC_BD28623) += snd-soc-bd28623.o
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obj-$(CONFIG_SND_SOC_BT_SCO) += snd-soc-bt-sco.o
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obj-$(CONFIG_SND_SOC_CQ0093VC) += snd-soc-cq93vc.o
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obj-$(CONFIG_SND_SOC_CS35L32) += snd-soc-cs35l32.o
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242
sound/soc/codecs/bd28623.c
Normal file
242
sound/soc/codecs/bd28623.c
Normal file
@ -0,0 +1,242 @@
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// SPDX-License-Identifier: GPL-2.0
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//
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// ROHM BD28623MUV class D speaker amplifier codec driver.
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//
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// Copyright (c) 2018 Socionext Inc.
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regulator/consumer.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#define BD28623_NUM_SUPPLIES 3
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static const char *const bd28623_supply_names[BD28623_NUM_SUPPLIES] = {
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"VCCA",
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"VCCP1",
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"VCCP2",
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};
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struct bd28623_priv {
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struct device *dev;
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struct regulator_bulk_data supplies[BD28623_NUM_SUPPLIES];
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struct gpio_desc *reset_gpio;
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struct gpio_desc *mute_gpio;
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int switch_spk;
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};
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static const struct snd_soc_dapm_widget bd28623_widgets[] = {
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SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_OUTPUT("OUT1P"),
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SND_SOC_DAPM_OUTPUT("OUT1N"),
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SND_SOC_DAPM_OUTPUT("OUT2P"),
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SND_SOC_DAPM_OUTPUT("OUT2N"),
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};
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static const struct snd_soc_dapm_route bd28623_routes[] = {
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{ "OUT1P", NULL, "DAC" },
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{ "OUT1N", NULL, "DAC" },
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{ "OUT2P", NULL, "DAC" },
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{ "OUT2N", NULL, "DAC" },
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};
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static int bd28623_power_on(struct bd28623_priv *bd)
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{
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int ret;
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ret = regulator_bulk_enable(ARRAY_SIZE(bd->supplies), bd->supplies);
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if (ret) {
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dev_err(bd->dev, "Failed to enable supplies: %d\n", ret);
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return ret;
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}
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gpiod_set_value_cansleep(bd->reset_gpio, 0);
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usleep_range(300000, 400000);
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return 0;
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}
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static void bd28623_power_off(struct bd28623_priv *bd)
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{
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gpiod_set_value_cansleep(bd->reset_gpio, 1);
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regulator_bulk_disable(ARRAY_SIZE(bd->supplies), bd->supplies);
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}
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static int bd28623_get_switch_spk(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component =
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snd_soc_kcontrol_component(kcontrol);
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struct bd28623_priv *bd = snd_soc_component_get_drvdata(component);
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ucontrol->value.integer.value[0] = bd->switch_spk;
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return 0;
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}
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static int bd28623_set_switch_spk(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component =
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snd_soc_kcontrol_component(kcontrol);
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struct bd28623_priv *bd = snd_soc_component_get_drvdata(component);
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if (bd->switch_spk == ucontrol->value.integer.value[0])
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return 0;
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bd->switch_spk = ucontrol->value.integer.value[0];
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gpiod_set_value_cansleep(bd->mute_gpio, bd->switch_spk ? 0 : 1);
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return 0;
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}
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static const struct snd_kcontrol_new bd28623_controls[] = {
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SOC_SINGLE_BOOL_EXT("Speaker Switch", 0,
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bd28623_get_switch_spk, bd28623_set_switch_spk),
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};
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static int bd28623_codec_probe(struct snd_soc_component *component)
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{
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struct bd28623_priv *bd = snd_soc_component_get_drvdata(component);
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int ret;
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bd->switch_spk = 1;
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ret = bd28623_power_on(bd);
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if (ret)
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return ret;
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gpiod_set_value_cansleep(bd->mute_gpio, bd->switch_spk ? 0 : 1);
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return 0;
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}
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static void bd28623_codec_remove(struct snd_soc_component *component)
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{
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struct bd28623_priv *bd = snd_soc_component_get_drvdata(component);
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bd28623_power_off(bd);
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}
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static int bd28623_codec_suspend(struct snd_soc_component *component)
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{
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struct bd28623_priv *bd = snd_soc_component_get_drvdata(component);
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bd28623_power_off(bd);
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return 0;
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}
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static int bd28623_codec_resume(struct snd_soc_component *component)
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{
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struct bd28623_priv *bd = snd_soc_component_get_drvdata(component);
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int ret;
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ret = bd28623_power_on(bd);
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if (ret)
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return ret;
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gpiod_set_value_cansleep(bd->mute_gpio, bd->switch_spk ? 0 : 1);
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return 0;
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}
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static const struct snd_soc_component_driver soc_codec_bd = {
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.probe = bd28623_codec_probe,
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.remove = bd28623_codec_remove,
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.suspend = bd28623_codec_suspend,
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.resume = bd28623_codec_resume,
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.dapm_widgets = bd28623_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bd28623_widgets),
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.dapm_routes = bd28623_routes,
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.num_dapm_routes = ARRAY_SIZE(bd28623_routes),
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.controls = bd28623_controls,
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.num_controls = ARRAY_SIZE(bd28623_controls),
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.idle_bias_on = 1,
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.use_pmdown_time = 1,
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.endianness = 1,
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.non_legacy_dai_naming = 1,
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};
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static struct snd_soc_dai_driver soc_dai_bd = {
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.name = "bd28623-speaker",
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.playback = {
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.stream_name = "Playback",
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.formats = SNDRV_PCM_FMTBIT_S32_LE |
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SNDRV_PCM_FMTBIT_S24_LE |
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SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_32000,
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.channels_min = 2,
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.channels_max = 2,
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},
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};
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static int bd28623_probe(struct platform_device *pdev)
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{
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struct bd28623_priv *bd;
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struct device *dev = &pdev->dev;
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int i, ret;
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bd = devm_kzalloc(&pdev->dev, sizeof(struct bd28623_priv), GFP_KERNEL);
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if (!bd)
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return -ENOMEM;
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for (i = 0; i < ARRAY_SIZE(bd->supplies); i++)
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bd->supplies[i].supply = bd28623_supply_names[i];
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ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(bd->supplies),
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bd->supplies);
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if (ret) {
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dev_err(dev, "Failed to get supplies: %d\n", ret);
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return ret;
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}
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bd->reset_gpio = devm_gpiod_get_optional(dev, "reset",
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GPIOD_OUT_HIGH);
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if (IS_ERR(bd->reset_gpio)) {
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dev_err(dev, "Failed to request reset_gpio: %ld\n",
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PTR_ERR(bd->reset_gpio));
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return PTR_ERR(bd->reset_gpio);
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}
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bd->mute_gpio = devm_gpiod_get_optional(dev, "mute",
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GPIOD_OUT_HIGH);
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if (IS_ERR(bd->mute_gpio)) {
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dev_err(dev, "Failed to request mute_gpio: %ld\n",
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PTR_ERR(bd->mute_gpio));
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return PTR_ERR(bd->mute_gpio);
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}
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platform_set_drvdata(pdev, bd);
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bd->dev = dev;
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return devm_snd_soc_register_component(dev, &soc_codec_bd,
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&soc_dai_bd, 1);
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}
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static const struct of_device_id bd28623_of_match[] = {
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{ .compatible = "rohm,bd28623", },
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{}
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};
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MODULE_DEVICE_TABLE(of, bd28623_of_match);
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static struct platform_driver bd28623_codec_driver = {
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.driver = {
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.name = "bd28623",
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.of_match_table = of_match_ptr(bd28623_of_match),
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},
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.probe = bd28623_probe,
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};
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module_platform_driver(bd28623_codec_driver);
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MODULE_AUTHOR("Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>");
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MODULE_DESCRIPTION("ROHM BD28623 speaker amplifier driver");
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MODULE_LICENSE("GPL v2");
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