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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /sound/soc/codecs/cs42l42-i2c.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/codecs/cs42l42-i2c.c')
-rw-r--r--sound/soc/codecs/cs42l42-i2c.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs42l42-i2c.c b/sound/soc/codecs/cs42l42-i2c.c
new file mode 100644
index 000000000..67b253287
--- /dev/null
+++ b/sound/soc/codecs/cs42l42-i2c.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cs42l42-i2c.c -- CS42L42 ALSA SoC audio driver for I2C
+ *
+ * Copyright 2016, 2022 Cirrus Logic, Inc.
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include "cs42l42.h"
+
+static int cs42l42_i2c_probe(struct i2c_client *i2c_client)
+{
+ struct device *dev = &i2c_client->dev;
+ struct cs42l42_private *cs42l42;
+ struct regmap *regmap;
+ int ret;
+
+ cs42l42 = devm_kzalloc(dev, sizeof(*cs42l42), GFP_KERNEL);
+ if (!cs42l42)
+ return -ENOMEM;
+
+ regmap = devm_regmap_init_i2c(i2c_client, &cs42l42_regmap);
+ if (IS_ERR(regmap))
+ return dev_err_probe(&i2c_client->dev, PTR_ERR(regmap),
+ "regmap_init() failed\n");
+
+ cs42l42->devid = CS42L42_CHIP_ID;
+ cs42l42->dev = dev;
+ cs42l42->regmap = regmap;
+ cs42l42->irq = i2c_client->irq;
+
+ ret = cs42l42_common_probe(cs42l42, &cs42l42_soc_component, &cs42l42_dai);
+ if (ret)
+ return ret;
+
+ return cs42l42_init(cs42l42);
+}
+
+static void cs42l42_i2c_remove(struct i2c_client *i2c_client)
+{
+ struct cs42l42_private *cs42l42 = dev_get_drvdata(&i2c_client->dev);
+
+ cs42l42_common_remove(cs42l42);
+}
+
+static int __maybe_unused cs42l42_i2c_resume(struct device *dev)
+{
+ int ret;
+
+ ret = cs42l42_resume(dev);
+ if (ret)
+ return ret;
+
+ cs42l42_resume_restore(dev);
+
+ return 0;
+}
+
+static const struct dev_pm_ops cs42l42_i2c_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(cs42l42_suspend, cs42l42_i2c_resume)
+};
+
+static const struct of_device_id __maybe_unused cs42l42_of_match[] = {
+ { .compatible = "cirrus,cs42l42", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, cs42l42_of_match);
+
+static const struct acpi_device_id __maybe_unused cs42l42_acpi_match[] = {
+ {"10134242", 0,},
+ {}
+};
+MODULE_DEVICE_TABLE(acpi, cs42l42_acpi_match);
+
+static const struct i2c_device_id cs42l42_id[] = {
+ {"cs42l42", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, cs42l42_id);
+
+static struct i2c_driver cs42l42_i2c_driver = {
+ .driver = {
+ .name = "cs42l42",
+ .pm = &cs42l42_i2c_pm_ops,
+ .of_match_table = of_match_ptr(cs42l42_of_match),
+ .acpi_match_table = ACPI_PTR(cs42l42_acpi_match),
+ },
+ .id_table = cs42l42_id,
+ .probe_new = cs42l42_i2c_probe,
+ .remove = cs42l42_i2c_remove,
+};
+
+module_i2c_driver(cs42l42_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC CS42L42 I2C driver");
+MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(SND_SOC_CS42L42_CORE);