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hwmon: (ad7418) Add device tree probing

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This adds device tree probing for the AD7418 hwmon sensor.
When device tree is not enabled, stub functions will kick
in.

Tested on the Gateway Cambria GW2358-4.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[groeck: Added missing {} to terminate ad7418_dt_ids]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Linus Walleij 2019-01-28 22:06:37 +01:00 committed by Guenter Roeck
parent badf14ceba
commit f4c2965e42
1 changed files with 14 additions and 1 deletions
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15
drivers/hwmon/ad7418.c
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@ -19,6 +19,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/of_device.h>
#include <linux/delay.h>
#include <linux/slab.h>
@ -253,7 +254,10 @@ static int ad7418_probe(struct i2c_client *client,
mutex_init(&data->lock);
data->client = client;
data->type = id->driver_data;
if (dev->of_node)
data->type = (enum chips)of_device_get_match_data(dev);
else
data->type = id->driver_data;
switch (data->type) {
case ad7416:
@ -291,9 +295,18 @@ static const struct i2c_device_id ad7418_id[] = {
};
MODULE_DEVICE_TABLE(i2c, ad7418_id);
static const struct of_device_id ad7418_dt_ids[] = {
{ .compatible = "adi,ad7416", .data = (void *)ad7416, },
{ .compatible = "adi,ad7417", .data = (void *)ad7417, },
{ .compatible = "adi,ad7418", .data = (void *)ad7418, },
{ }
};
MODULE_DEVICE_TABLE(of, ad7418_dt_ids);
static struct i2c_driver ad7418_driver = {
.driver = {
.name = "ad7418",
.of_match_table = ad7418_dt_ids,
},
.probe = ad7418_probe,
.id_table = ad7418_id,