ASoC: codecs: tlv320aic3x: add SPI support

Added SPI support.

Signed-off-by: Jiri Prchal <jiri.prchal@aksignal.cz>
Link: https://lore.kernel.org/r/20210406142439.102396-5-jiri.prchal@aksignal.cz
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index b0323db..2a7b3e3 100644 (file)
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -219,6 +219,7 @@ config SND_SOC_ALL_CODECS
        imply SND_SOC_TLV320AIC32X4_I2C
        imply SND_SOC_TLV320AIC32X4_SPI
        imply SND_SOC_TLV320AIC3X_I2C
+       imply SND_SOC_TLV320AIC3X_SPI
        imply SND_SOC_TPA6130A2
        imply SND_SOC_TLV320DAC33
        imply SND_SOC_TSCS42XX
@@ -1454,6 +1455,12 @@ config SND_SOC_TLV320AIC3X_I2C
        select SND_SOC_TLV320AIC3X
        select REGMAP_I2C
 
+config SND_SOC_TLV320AIC3X_SPI
+       tristate "Texas Instruments TLV320AIC3x audio CODECs - SPI"
+       depends on SPI_MASTER
+       select SND_SOC_TLV320AIC3X
+       select REGMAP_SPI
+
 config SND_SOC_TLV320DAC33
        tristate
        depends on I2C

diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index f014ea9..0efdba6 100644 (file)
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -239,6 +239,7 @@ snd-soc-tlv320aic32x4-i2c-objs := tlv320aic32x4-i2c.o
 snd-soc-tlv320aic32x4-spi-objs := tlv320aic32x4-spi.o
 snd-soc-tlv320aic3x-objs := tlv320aic3x.o
 snd-soc-tlv320aic3x-i2c-objs := tlv320aic3x-i2c.o
+snd-soc-tlv320aic3x-spi-objs := tlv320aic3x-spi.o
 snd-soc-tlv320dac33-objs := tlv320dac33.o
 snd-soc-tlv320adcx140-objs := tlv320adcx140.o
 snd-soc-tscs42xx-objs := tscs42xx.o
@@ -560,6 +561,7 @@ obj-$(CONFIG_SND_SOC_TLV320AIC32X4_I2C)     += snd-soc-tlv320aic32x4-i2c.o
 obj-$(CONFIG_SND_SOC_TLV320AIC32X4_SPI)        += snd-soc-tlv320aic32x4-spi.o
 obj-$(CONFIG_SND_SOC_TLV320AIC3X)      += snd-soc-tlv320aic3x.o
 obj-$(CONFIG_SND_SOC_TLV320AIC3X_I2C)  += snd-soc-tlv320aic3x-i2c.o
+obj-$(CONFIG_SND_SOC_TLV320AIC3X_SPI)  += snd-soc-tlv320aic3x-spi.o
 obj-$(CONFIG_SND_SOC_TLV320DAC33)      += snd-soc-tlv320dac33.o
 obj-$(CONFIG_SND_SOC_TLV320ADCX140)    += snd-soc-tlv320adcx140.o
 obj-$(CONFIG_SND_SOC_TSCS42XX) += snd-soc-tscs42xx.o

diff --git a/sound/soc/codecs/tlv320aic3x-spi.c b/sound/soc/codecs/tlv320aic3x-spi.c
new file mode 100644 (file)
index 0000000..bd78ab0
--- /dev/null
+++ b/sound/soc/codecs/tlv320aic3x-spi.c
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * ALSA SoC TLV320AIC3x codec driver SPI interface
+ *
+ * Author:      Arun KS, <arunks@mistralsolutions.com>
+ * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
+ *
+ * Based on sound/soc/codecs/wm8731.c by Richard Purdie
+ *
+ */
+
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+
+#include "tlv320aic3x.h"
+
+static int aic3x_spi_probe(struct spi_device *spi)
+{
+       struct regmap *regmap;
+       struct regmap_config config;
+       const struct spi_device_id *id = spi_get_device_id(spi);
+
+       config = aic3x_regmap;
+       config.reg_bits = 7;
+       config.pad_bits = 1;
+       config.val_bits = 8;
+       config.read_flag_mask = 0x01;
+
+       dev_dbg(&spi->dev, "probing tlv320aic3x spi device\n");
+
+       regmap = devm_regmap_init_spi(spi, &config);
+       return aic3x_probe(&spi->dev, regmap, id->driver_data);
+}
+
+static int aic3x_spi_remove(struct spi_device *spi)
+{
+       return aic3x_remove(&spi->dev);
+}
+
+static const struct spi_device_id aic3x_spi_id[] = {
+       { "tlv320aic3x", AIC3X_MODEL_3X },
+       { "tlv320aic33", AIC3X_MODEL_33 },
+       { "tlv320aic3007", AIC3X_MODEL_3007 },
+       { "tlv320aic3104", AIC3X_MODEL_3104 },
+       { }
+};
+MODULE_DEVICE_TABLE(spi, aic3x_spi_id);
+
+static const struct of_device_id aic3x_of_id[] = {
+       { .compatible = "ti,tlv320aic3x", },
+       { .compatible = "ti,tlv320aic33" },
+       { .compatible = "ti,tlv320aic3007" },
+       { .compatible = "ti,tlv320aic3104" },
+       {},
+};
+MODULE_DEVICE_TABLE(of, aic3x_of_id);
+
+static struct spi_driver aic3x_spi_driver = {
+       .driver = {
+               .name = "tlv320aic3x",
+               .owner = THIS_MODULE,
+               .of_match_table = aic3x_of_id,
+       },
+       .probe = aic3x_spi_probe,
+       .remove = aic3x_spi_remove,
+       .id_table = aic3x_spi_id,
+};
+
+module_spi_driver(aic3x_spi_driver);
+
+MODULE_DESCRIPTION("ASoC TLV320AIC3x codec driver SPI");
+MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
+MODULE_LICENSE("GPL");