lkml.org 
[lkml]   [2017]   [Feb]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 07/19] hwmon: (ina2xx) 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/ina2xx.c | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)

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,
--
2.9.3
\
 
 \ /
  Last update: 2017-02-24 14:16    [W:0.434 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site