forked from luck/tmp_suning_uos_patched
798c3c9b4c
The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. The I2C device ID table entries have the .driver_data field set, but they are not used in the driver so weren't set in the OF device table entries. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
/*
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* 3-axis accelerometer driver supporting following I2C Bosch-Sensortec chips:
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* - BMC150
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* - BMI055
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* - BMA255
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* - BMA250E
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* - BMA222E
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* - BMA280
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*
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* Copyright (c) 2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/device.h>
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#include <linux/mod_devicetable.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/acpi.h>
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#include <linux/regmap.h>
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#include "bmc150-accel.h"
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static int bmc150_accel_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct regmap *regmap;
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const char *name = NULL;
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bool block_supported =
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i2c_check_functionality(client->adapter, I2C_FUNC_I2C) ||
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i2c_check_functionality(client->adapter,
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I2C_FUNC_SMBUS_READ_I2C_BLOCK);
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regmap = devm_regmap_init_i2c(client, &bmc150_regmap_conf);
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if (IS_ERR(regmap)) {
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dev_err(&client->dev, "Failed to initialize i2c regmap\n");
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return PTR_ERR(regmap);
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}
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if (id)
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name = id->name;
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return bmc150_accel_core_probe(&client->dev, regmap, client->irq, name,
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block_supported);
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}
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static int bmc150_accel_remove(struct i2c_client *client)
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{
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return bmc150_accel_core_remove(&client->dev);
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}
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static const struct acpi_device_id bmc150_accel_acpi_match[] = {
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{"BSBA0150", bmc150},
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{"BMC150A", bmc150},
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{"BMI055A", bmi055},
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{"BMA0255", bma255},
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{"BMA250E", bma250e},
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{"BMA222E", bma222e},
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{"BMA0280", bma280},
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{"BOSC0200"},
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{ },
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};
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MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
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static const struct i2c_device_id bmc150_accel_id[] = {
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{"bmc150_accel", bmc150},
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{"bmi055_accel", bmi055},
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{"bma255", bma255},
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{"bma250e", bma250e},
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{"bma222e", bma222e},
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{"bma280", bma280},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, bmc150_accel_id);
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static const struct of_device_id bmc150_accel_of_match[] = {
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{ .compatible = "bosch,bmc150_accel" },
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{ .compatible = "bosch,bmi055_accel" },
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{ .compatible = "bosch,bma255" },
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{ .compatible = "bosch,bma250e" },
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{ .compatible = "bosch,bma222e" },
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{ .compatible = "bosch,bma280" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, bmc150_accel_of_match);
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static struct i2c_driver bmc150_accel_driver = {
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.driver = {
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.name = "bmc150_accel_i2c",
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.of_match_table = bmc150_accel_of_match,
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.acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
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.pm = &bmc150_accel_pm_ops,
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},
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.probe = bmc150_accel_probe,
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.remove = bmc150_accel_remove,
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.id_table = bmc150_accel_id,
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};
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module_i2c_driver(bmc150_accel_driver);
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MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
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MODULE_LICENSE("GPL v2");
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MODULE_DESCRIPTION("BMC150 I2C accelerometer driver");
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