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Subject[PATCH 08/19] hwmon: (lm63) Add OF device ID table
Date
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>
---

drivers/hwmon/lm63.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 2e1948699114..4c1770920d29 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -46,6 +46,7 @@
#include <linux/hwmon.h>
#include <linux/err.h>
#include <linux/mutex.h>
+#include <linux/of_device.h>
#include <linux/sysfs.h>
#include <linux/types.h>

@@ -1115,6 +1116,10 @@ static int lm63_probe(struct i2c_client *client,
mutex_init(&data->update_lock);

/* Set the device type */
+ if (client->dev.of_node)
+ data->kind = (enum chips)of_device_get_match_data(&client->dev);
+ else
+ data->kind = id->driver_data;
data->kind = id->driver_data;
if (data->kind == lm64)
data->temp2_offset = 16000;
@@ -1149,10 +1154,28 @@ static const struct i2c_device_id lm63_id[] = {
};
MODULE_DEVICE_TABLE(i2c, lm63_id);

+static const struct of_device_id lm63_of_match[] = {
+ {
+ .compatible = "national,lm63",
+ .data = (void *)lm63
+ },
+ {
+ .compatible = "national,lm64",
+ .data = (void *)lm64
+ },
+ {
+ .compatible = "national,lm96163",
+ .data = (void *)lm96163
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, lm63_of_match);
+
static struct i2c_driver lm63_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm63",
+ .of_match_table = of_match_ptr(lm63_of_match),
},
.probe = lm63_probe,
.id_table = lm63_id,
--
2.9.3
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