1 files changed, 83 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic32x4-spi.c b/sound/soc/codecs/tlv320aic32x4-spi.c
new file mode 100644
index 000000000..03cce8d64
--- /dev/null
+++ b/sound/soc/codecs/tlv320aic32x4-spi.c
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2011-2019 NW Digital Radio
+ *
+ * Author: Annaliese McDermond <nh6z@nh6z.net>
+ *
+ * Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
+ *
+ */
+
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+
+#include "tlv320aic32x4.h"
+
+static const struct of_device_id aic32x4_of_id[];
+
+static int aic32x4_spi_probe(struct spi_device *spi)
+{
+	struct regmap *regmap;
+	struct regmap_config config;
+
+	config = aic32x4_regmap_config;
+	config.reg_bits = 7;
+	config.pad_bits = 1;
+	config.val_bits = 8;
+	config.read_flag_mask = 0x01;
+
+	regmap = devm_regmap_init_spi(spi, &config);
+
+	if (spi->dev.of_node) {
+		const struct of_device_id *oid;
+
+		oid = of_match_node(aic32x4_of_id, spi->dev.of_node);
+		dev_set_drvdata(&spi->dev, (void *)oid->data);
+	} else {
+		const struct spi_device_id *id_entry;
+
+		id_entry = spi_get_device_id(spi);
+		dev_set_drvdata(&spi->dev, (void *)id_entry->driver_data);
+	}
+
+	return aic32x4_probe(&spi->dev, regmap);
+}
+
+static void aic32x4_spi_remove(struct spi_device *spi)
+{
+	aic32x4_remove(&spi->dev);
+}
+
+static const struct spi_device_id aic32x4_spi_id[] = {
+	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
+	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
+
+static const struct of_device_id aic32x4_of_id[] = {
+	{ .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
+	{ .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
+	{ /* senitel */ }
+};
+MODULE_DEVICE_TABLE(of, aic32x4_of_id);
+
+static struct spi_driver aic32x4_spi_driver = {
+	.driver = {
+		.name = "tlv320aic32x4",
+		.owner = THIS_MODULE,
+		.of_match_table = aic32x4_of_id,
+	},
+	.probe =    aic32x4_spi_probe,
+	.remove =   aic32x4_spi_remove,
+	.id_table = aic32x4_spi_id,
+};
+
+module_spi_driver(aic32x4_spi_driver);
+
+MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
+MODULE_AUTHOR("Annaliese McDermond <nh6z@nh6z.net>");
+MODULE_LICENSE("GPL");