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authorJavier Martinez Canillas <javier@osg.samsung.com>2017-02-24 10:13:00 -0300
committerGuenter Roeck <linux@roeck-us.net>2017-04-02 07:01:53 -0700
commitbd0ddd4d0883a95e6a3d49e7174e546b2f1845cf (patch)
tree7ba18cf156ee627f4f274ec86a7d0a84e1869aea /drivers/hwmon
parent0b7abe59bee79e92563e5d3a7c2aad81a78c7ba5 (diff)
hwmon: (ina2xx) 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>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/ina2xx.c35
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index b24f1d3045f0..62e38fa8cda2 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -34,6 +34,7 @@
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/jiffies.h>
+#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/delay.h>
#include <linux/util_macros.h>
@@ -424,13 +425,19 @@ static int ina2xx_probe(struct i2c_client *client,
struct device *hwmon_dev;
u32 val;
int ret, group = 0;
+ enum ina2xx_ids chip;
+
+ if (client->dev.of_node)
+ chip = (enum ina2xx_ids)of_device_get_match_data(&client->dev);
+ else
+ chip = id->driver_data;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
/* set the device type */
- data->config = &ina2xx_config[id->driver_data];
+ data->config = &ina2xx_config[chip];
if (of_property_read_u32(dev->of_node, "shunt-resistor", &val) < 0) {
struct ina2xx_platform_data *pdata = dev_get_platdata(dev);
@@ -487,9 +494,35 @@ static const struct i2c_device_id ina2xx_id[] = {
};
MODULE_DEVICE_TABLE(i2c, ina2xx_id);
+static const struct of_device_id ina2xx_of_match[] = {
+ {
+ .compatible = "ti,ina219",
+ .data = (void *)ina219
+ },
+ {
+ .compatible = "ti,ina220",
+ .data = (void *)ina219
+ },
+ {
+ .compatible = "ti,ina226",
+ .data = (void *)ina226
+ },
+ {
+ .compatible = "ti,ina230",
+ .data = (void *)ina226
+ },
+ {
+ .compatible = "ti,ina231",
+ .data = (void *)ina226
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, ina2xx_of_match);
+
static struct i2c_driver ina2xx_driver = {
.driver = {
.name = "ina2xx",
+ .of_match_table = of_match_ptr(ina2xx_of_match),
},
.probe = ina2xx_probe,
.id_table = ina2xx_id,