1 files changed, 99 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs35l41-spi.c b/sound/soc/codecs/cs35l41-spi.c
new file mode 100644
index 0000000000..5c8bb24909
--- /dev/null
+++ b/sound/soc/codecs/cs35l41-spi.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// cs35l41-spi.c -- CS35l41 SPI driver
+//
+// Copyright 2017-2021 Cirrus Logic, Inc.
+//
+// Author: David Rhodes	<david.rhodes@cirrus.com>
+
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+
+#include "cs35l41.h"
+
+static const struct spi_device_id cs35l41_id_spi[] = {
+	{ "cs35l40", 0 },
+	{ "cs35l41", 0 },
+	{ "cs35l51", 0 },
+	{ "cs35l53", 0 },
+	{}
+};
+
+MODULE_DEVICE_TABLE(spi, cs35l41_id_spi);
+
+static int cs35l41_spi_probe(struct spi_device *spi)
+{
+	const struct regmap_config *regmap_config = &cs35l41_regmap_spi;
+	struct cs35l41_hw_cfg *hw_cfg = dev_get_platdata(&spi->dev);
+	struct cs35l41_private *cs35l41;
+	int ret;
+
+	cs35l41 = devm_kzalloc(&spi->dev, sizeof(struct cs35l41_private), GFP_KERNEL);
+	if (!cs35l41)
+		return -ENOMEM;
+
+	spi->max_speed_hz = CS35L41_SPI_MAX_FREQ;
+	spi_setup(spi);
+
+	spi_set_drvdata(spi, cs35l41);
+	cs35l41->regmap = devm_regmap_init_spi(spi, regmap_config);
+	if (IS_ERR(cs35l41->regmap)) {
+		ret = PTR_ERR(cs35l41->regmap);
+		dev_err(&spi->dev, "Failed to allocate register map: %d\n", ret);
+		return ret;
+	}
+
+	cs35l41->dev = &spi->dev;
+	cs35l41->irq = spi->irq;
+
+	return cs35l41_probe(cs35l41, hw_cfg);
+}
+
+static void cs35l41_spi_remove(struct spi_device *spi)
+{
+	struct cs35l41_private *cs35l41 = spi_get_drvdata(spi);
+
+	cs35l41_remove(cs35l41);
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id cs35l41_of_match[] = {
+	{ .compatible = "cirrus,cs35l40" },
+	{ .compatible = "cirrus,cs35l41" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, cs35l41_of_match);
+#endif
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id cs35l41_acpi_match[] = {
+	{ "CSC3541", 0 }, /* Cirrus Logic PnP ID + part ID */
+	{ "CLSA3541", 0 }, /* Cirrus Logic PnP ID + part ID */
+	{},
+};
+MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
+#endif
+
+static struct spi_driver cs35l41_spi_driver = {
+	.driver = {
+		.name		= "cs35l41",
+		.pm		= &cs35l41_pm_ops,
+		.of_match_table = of_match_ptr(cs35l41_of_match),
+		.acpi_match_table = ACPI_PTR(cs35l41_acpi_match),
+	},
+	.id_table	= cs35l41_id_spi,
+	.probe		= cs35l41_spi_probe,
+	.remove		= cs35l41_spi_remove,
+};
+
+module_spi_driver(cs35l41_spi_driver);
+
+MODULE_DESCRIPTION("SPI CS35L41 driver");
+MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
+MODULE_LICENSE("GPL");