This patch adds device tree support to the lm73 driver. It is a
trivial i2c device that matches against the compatible property
value "national,lm73":
i2c {
/* ... */
temperature-sensor@49 {
compatible = "national,lm73";
reg = <0x49>;
};
};
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 +
drivers/hwmon/lm73.c | 9 +++++++++
2 files changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index 2f5322b..6d27042 100644
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -39,6 +39,7 @@ maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator
maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
maxim,max6625 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface
mc,rv3029c2 Real Time Clock Module with I2C-Bus
+national,lm73 I2C TEMP SENSOR
national,lm75 I2C TEMP SENSOR
national,lm80 Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
national,lm92 ±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c
index 8fa2632..96bcf25 100644
--- a/drivers/hwmon/lm73.c
+++ b/drivers/hwmon/lm73.c
@@ -20,6 +20,7 @@
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
+#include <linux/of.h>
/* Addresses scanned */
@@ -182,10 +183,18 @@ static int lm73_detect(struct i2c_client *new_client,
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id lm73_dt_ids[] = {
+ { .compatible = "national,lm73" },
+ {}
+};
+#endif
+
static struct i2c_driver lm73_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "lm73",
+ .of_match_table = of_match_ptr(lm73_dt_ids),
},
.probe = lm73_probe,
.remove = lm73_remove,
--
1.7.10.4
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