hwmon: (max6697) Add OF device ID table

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>

diff --git a/drivers/hwmon/max6697.c b/drivers/hwmon/max6697.c
index f03a717..221fd14 100644 (file)
--- a/drivers/hwmon/max6697.c
+++ b/drivers/hwmon/max6697.c
@@ -24,6 +24,7 @@
 #include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
+#include <linux/of_device.h>
 #include <linux/of.h>
 
 #include <linux/platform_data/max6697.h>
@@ -632,7 +633,10 @@ static int max6697_probe(struct i2c_client *client,
        if (!data)
                return -ENOMEM;
 
-       data->type = id->driver_data;
+       if (client->dev.of_node)
+               data->type = (enum chips)of_device_get_match_data(&client->dev);
+       else
+               data->type = id->driver_data;
        data->chip = &max6697_chip_data[data->type];
        data->client = client;
        mutex_init(&data->update_lock);
@@ -662,10 +666,56 @@ static const struct i2c_device_id max6697_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max6697_id);
 
+static const struct of_device_id max6697_of_match[] = {
+       {
+               .compatible = "maxim,max6581",
+               .data = (void *)max6581
+       },
+       {
+               .compatible = "maxim,max6602",
+               .data = (void *)max6602
+       },
+       {
+               .compatible = "maxim,max6622",
+               .data = (void *)max6622
+       },
+       {
+               .compatible = "maxim,max6636",
+               .data = (void *)max6636
+       },
+       {
+               .compatible = "maxim,max6689",
+               .data = (void *)max6689
+       },
+       {
+               .compatible = "maxim,max6693",
+               .data = (void *)max6693
+       },
+       {
+               .compatible = "maxim,max6694",
+               .data = (void *)max6694
+       },
+       {
+               .compatible = "maxim,max6697",
+               .data = (void *)max6697
+       },
+       {
+               .compatible = "maxim,max6698",
+               .data = (void *)max6698
+       },
+       {
+               .compatible = "maxim,max6699",
+               .data = (void *)max6699
+       },
+       { },
+};
+MODULE_DEVICE_TABLE(of, max6697_of_match);
+
 static struct i2c_driver max6697_driver = {
        .class = I2C_CLASS_HWMON,
        .driver = {
                .name   = "max6697",
+               .of_match_table = of_match_ptr(max6697_of_match),
        },
        .probe = max6697_probe,
        .id_table = max6697_id,