[PATCH 10/19] hwmon: (lm85) Add OF device ID table

From: Javier Martinez Canillas
Date: Fri Feb 24 2017 - 08:18:21 EST


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@xxxxxxxxxxxxxxx>
---

drivers/hwmon/lm85.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 55 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index 691469ffa24e..0a325878e8f5 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -25,6 +25,7 @@
*/

#include <linux/module.h>
+#include <linux/of_device.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
@@ -1552,7 +1553,10 @@ static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id)
return -ENOMEM;

data->client = client;
- 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;
mutex_init(&data->update_lock);

/* Fill in the chip specific driver values */
@@ -1623,10 +1627,60 @@ static const struct i2c_device_id lm85_id[] = {
};
MODULE_DEVICE_TABLE(i2c, lm85_id);

+static const struct of_device_id lm85_of_match[] = {
+ {
+ .compatible = "adi,adm1027",
+ .data = (void *)adm1027
+ },
+ {
+ .compatible = "adi,adt7463",
+ .data = (void *)adt7463
+ },
+ {
+ .compatible = "adi,adt7468",
+ .data = (void *)adt7468
+ },
+ {
+ .compatible = "national,lm85",
+ .data = (void *)lm85
+ },
+ {
+ .compatible = "national,lm85b",
+ .data = (void *)lm85
+ },
+ {
+ .compatible = "national,lm85c",
+ .data = (void *)lm85
+ },
+ {
+ .compatible = "smsc,emc6d100",
+ .data = (void *)emc6d100
+ },
+ {
+ .compatible = "smsc,emc6d101",
+ .data = (void *)emc6d100
+ },
+ {
+ .compatible = "smsc,emc6d102",
+ .data = (void *)emc6d102
+ },
+ {
+ .compatible = "smsc,emc6d103",
+ .data = (void *)emc6d103
+ },
+ {
+ .compatible = "smsc,emc6d103s",
+ .data = (void *)emc6d103s
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, lm85_of_match);
+
static struct i2c_driver lm85_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm85",
+ .of_match_table = of_match_ptr(lm85_of_match),
},
.probe = lm85_probe,
.id_table = lm85_id,
--
2.9.3