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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /sound/soc/codecs/cs35l45-spi.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/codecs/cs35l45-spi.c')
-rw-r--r--sound/soc/codecs/cs35l45-spi.c78
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 0000000000..39e203a5f0
--- /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);