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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Honeywell ABP2 series pressure sensor driver
*
* Copyright (c) 2025 Petre Rodan <petre.rodan@subdimension.ro>
*/
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/types.h>
#include "abp2030pa.h"
static int abp2_i2c_read(struct abp2_data *data, u8 unused, u8 nbytes)
{
struct i2c_client *client = to_i2c_client(data->dev);
int ret;
if (nbytes > ABP2_MEASUREMENT_RD_SIZE)
return -EOVERFLOW;
ret = i2c_master_recv(client, data->rx_buf, nbytes);
if (ret < 0)
return ret;
if (ret != nbytes)
return -EIO;
return 0;
}
static int abp2_i2c_write(struct abp2_data *data, u8 cmd, u8 nbytes)
{
struct i2c_client *client = to_i2c_client(data->dev);
int ret;
if (nbytes > ABP2_MEASUREMENT_RD_SIZE)
return -EOVERFLOW;
data->tx_buf[0] = cmd;
ret = i2c_master_send(client, data->tx_buf, nbytes);
if (ret < 0)
return ret;
if (ret != nbytes)
return -EIO;
return 0;
}
static const struct abp2_ops abp2_i2c_ops = {
.read = abp2_i2c_read,
.write = abp2_i2c_write,
};
static int abp2_i2c_probe(struct i2c_client *client)
{
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -EOPNOTSUPP;
return abp2_common_probe(&client->dev, &abp2_i2c_ops, client->irq);
}
static const struct of_device_id abp2_i2c_match[] = {
{ .compatible = "honeywell,abp2030pa" },
{ }
};
MODULE_DEVICE_TABLE(of, abp2_i2c_match);
static const struct i2c_device_id abp2_i2c_id[] = {
{ "abp2030pa" },
{ }
};
MODULE_DEVICE_TABLE(i2c, abp2_i2c_id);
static struct i2c_driver abp2_i2c_driver = {
.driver = {
.name = "abp2030pa",
.of_match_table = abp2_i2c_match,
},
.probe = abp2_i2c_probe,
.id_table = abp2_i2c_id,
};
module_i2c_driver(abp2_i2c_driver);
MODULE_AUTHOR("Petre Rodan <petre.rodan@subdimension.ro>");
MODULE_DESCRIPTION("Honeywell ABP2 pressure sensor i2c driver");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS("IIO_HONEYWELL_ABP2030PA");
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