[PATCH 2/2] driver/hwmon/lm90: enable extended range according to DTS node

[Holger Brunck <holger.brunck@hitachienergy.com>]

Some lm90 devices can run in a extended temperature mode, this property
can now be set in the devicetree node of the sensor.

Signed-off-by: Holger Brunck <holger.brunck@hitachienergy.com>
cc: Jean Delvare <jdelvare@suse.com>
cc: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/lm90.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 1c9493c70813..9fd315faa066 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -1707,6 +1707,7 @@ static void lm90_restore_conf(void *_data)
 
 static int lm90_init_client(struct i2c_client *client, struct lm90_data *data)
 {
+	struct device_node *np = client->dev.of_node;
 	int config, convrate;
 
 	convrate = lm90_read_reg(client, LM90_REG_R_CONVRATE);
@@ -1727,7 +1728,8 @@ static int lm90_init_client(struct i2c_client *client, struct lm90_data *data)
 
 	/* Check Temperature Range Select */
 	if (data->flags & LM90_HAVE_EXTENDED_TEMP) {
-		if (config & 0x04)
+		if (config & 0x04 ||
+		    of_property_read_bool(np, "extended-range-enable"))
 			data->flags |= LM90_FLAG_ADT7461_EXT;
 	}
 
-- 
2.34.1