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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 /drivers/iio/accel/adxl313_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 'drivers/iio/accel/adxl313_i2c.c')
-rw-r--r--drivers/iio/accel/adxl313_i2c.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/iio/accel/adxl313_i2c.c b/drivers/iio/accel/adxl313_i2c.c
new file mode 100644
index 000000000..68785bd3e
--- /dev/null
+++ b/drivers/iio/accel/adxl313_i2c.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ADXL313 3-Axis Digital Accelerometer
+ *
+ * Copyright (c) 2021 Lucas Stankus <lucas.p.stankus@gmail.com>
+ *
+ * Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL313.pdf
+ */
+
+#include <linux/i2c.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "adxl313.h"
+
+static const struct regmap_config adxl31x_i2c_regmap_config[] = {
+ [ADXL312] = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .rd_table = &adxl312_readable_regs_table,
+ .wr_table = &adxl312_writable_regs_table,
+ .max_register = 0x39,
+ },
+ [ADXL313] = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .rd_table = &adxl313_readable_regs_table,
+ .wr_table = &adxl313_writable_regs_table,
+ .max_register = 0x39,
+ },
+ [ADXL314] = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .rd_table = &adxl314_readable_regs_table,
+ .wr_table = &adxl314_writable_regs_table,
+ .max_register = 0x39,
+ },
+};
+
+static const struct i2c_device_id adxl313_i2c_id[] = {
+ { .name = "adxl312", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL312] },
+ { .name = "adxl313", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL313] },
+ { .name = "adxl314", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL314] },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, adxl313_i2c_id);
+
+static const struct of_device_id adxl313_of_match[] = {
+ { .compatible = "adi,adxl312", .data = &adxl31x_chip_info[ADXL312] },
+ { .compatible = "adi,adxl313", .data = &adxl31x_chip_info[ADXL313] },
+ { .compatible = "adi,adxl314", .data = &adxl31x_chip_info[ADXL314] },
+ { }
+};
+
+MODULE_DEVICE_TABLE(of, adxl313_of_match);
+
+static int adxl313_i2c_probe(struct i2c_client *client)
+{
+ const struct adxl313_chip_info *chip_data;
+ struct regmap *regmap;
+
+ /*
+ * Retrieves device specific data as a pointer to a
+ * adxl313_chip_info structure
+ */
+ chip_data = device_get_match_data(&client->dev);
+ if (!chip_data)
+ chip_data = (const struct adxl313_chip_info *)i2c_match_id(adxl313_i2c_id, client)->driver_data;
+
+ regmap = devm_regmap_init_i2c(client,
+ &adxl31x_i2c_regmap_config[chip_data->type]);
+ if (IS_ERR(regmap)) {
+ dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
+ PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ return adxl313_core_probe(&client->dev, regmap, chip_data, NULL);
+}
+
+static struct i2c_driver adxl313_i2c_driver = {
+ .driver = {
+ .name = "adxl313_i2c",
+ .of_match_table = adxl313_of_match,
+ },
+ .probe_new = adxl313_i2c_probe,
+ .id_table = adxl313_i2c_id,
+};
+
+module_i2c_driver(adxl313_i2c_driver);
+
+MODULE_AUTHOR("Lucas Stankus <lucas.p.stankus@gmail.com>");
+MODULE_DESCRIPTION("ADXL313 3-Axis Digital Accelerometer I2C driver");
+MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ADXL313);