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hwmon: (ucd9000) Add OF device ID table

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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.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Javier Martinez Canillas 2017-02-24 10:13:07 -03:00 committed by Guenter Roeck
parent 9e427083c3
commit 8881a19187
1 changed files with 38 additions and 1 deletions
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39
drivers/hwmon/pmbus/ucd9000.c
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@ -21,6 +21,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/slab.h>
@ -119,6 +120,35 @@ static const struct i2c_device_id ucd9000_id[] = {
};
MODULE_DEVICE_TABLE(i2c, ucd9000_id);
static const struct of_device_id ucd9000_of_match[] = {
{
.compatible = "ti,ucd9000",
.data = (void *)ucd9000
},
{
.compatible = "ti,ucd90120",
.data = (void *)ucd90120
},
{
.compatible = "ti,ucd90124",
.data = (void *)ucd90124
},
{
.compatible = "ti,ucd90160",
.data = (void *)ucd90160
},
{
.compatible = "ti,ucd9090",
.data = (void *)ucd9090
},
{
.compatible = "ti,ucd90910",
.data = (void *)ucd90910
},
{ },
};
MODULE_DEVICE_TABLE(of, ucd9000_of_match);
static int ucd9000_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@ -126,6 +156,7 @@ static int ucd9000_probe(struct i2c_client *client,
struct ucd9000_data *data;
struct pmbus_driver_info *info;
const struct i2c_device_id *mid;
enum chips chip;
int i, ret;
if (!i2c_check_functionality(client->adapter,
@ -151,7 +182,12 @@ static int ucd9000_probe(struct i2c_client *client,
return -ENODEV;
}
if (id->driver_data != ucd9000 && id->driver_data != mid->driver_data)
if (client->dev.of_node)
chip = (enum chips)of_device_get_match_data(&client->dev);
else
chip = id->driver_data;
if (chip != ucd9000 && chip != mid->driver_data)
dev_notice(&client->dev,
"Device mismatch: Configured %s, detected %s\n",
id->name, mid->name);
@ -234,6 +270,7 @@ static int ucd9000_probe(struct i2c_client *client,
static struct i2c_driver ucd9000_driver = {
.driver = {
.name = "ucd9000",
.of_match_table = of_match_ptr(ucd9000_of_match),
},
.probe = ucd9000_probe,
.remove = pmbus_do_remove,