1 files changed, 78 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs35l45-spi.c b/sound/soc/codecs/cs35l45-spi.c
new file mode 100644
index 000000000000..39e203a5f060
--- /dev/null
+++ b/sound/soc/codecs/cs35l45-spi.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// cs35l45-spi.c -- CS35L45 SPI driver
+//
+// Copyright 2019-2022 Cirrus Logic, Inc.
+//
+// Author: James Schulman <james.schulman@cirrus.com>
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "cs35l45.h"
+
+static int cs35l45_spi_probe(struct spi_device *spi)
+{
+	struct cs35l45_private *cs35l45;
+	struct device *dev = &spi->dev;
+	int ret;
+
+	cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);
+	if (cs35l45 == NULL)
+		return -ENOMEM;
+
+	spi->max_speed_hz = CS35L45_SPI_MAX_FREQ;
+	spi_setup(spi);
+
+	spi_set_drvdata(spi, cs35l45);
+	cs35l45->regmap = devm_regmap_init_spi(spi, &cs35l45_spi_regmap);
+	if (IS_ERR(cs35l45->regmap)) {
+		ret = PTR_ERR(cs35l45->regmap);
+		dev_err(dev, "Failed to allocate register map: %d\n", ret);
+		return ret;
+	}
+
+	cs35l45->dev = dev;
+	cs35l45->irq = spi->irq;
+	cs35l45->bus_type = CONTROL_BUS_SPI;
+
+	return cs35l45_probe(cs35l45);
+}
+
+static void cs35l45_spi_remove(struct spi_device *spi)
+{
+	struct cs35l45_private *cs35l45 = spi_get_drvdata(spi);
+
+	cs35l45_remove(cs35l45);
+}
+
+static const struct of_device_id cs35l45_of_match[] = {
+	{ .compatible = "cirrus,cs35l45" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, cs35l45_of_match);
+
+static const struct spi_device_id cs35l45_id_spi[] = {
+	{ "cs35l45", 0 },
+	{}
+};
+MODULE_DEVICE_TABLE(spi, cs35l45_id_spi);
+
+static struct spi_driver cs35l45_spi_driver = {
+	.driver = {
+		.name		= "cs35l45",
+		.of_match_table = cs35l45_of_match,
+		.pm		= pm_ptr(&cs35l45_pm_ops),
+	},
+	.id_table	= cs35l45_id_spi,
+	.probe		= cs35l45_spi_probe,
+	.remove		= cs35l45_spi_remove,
+};
+module_spi_driver(cs35l45_spi_driver);
+
+MODULE_DESCRIPTION("SPI CS35L45 driver");
+MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(SND_SOC_CS35L45);