Commit 45988d90 authored by Holger Brunck's avatar Holger Brunck Committed by Guenter Roeck
Browse files

hwmon: (lm90) enable extended range according to DTS node 



Some lm90 compatible devices can operate in an extended temperature mode.
This feature is now enabled if the property is set in the corresponding
device tree node.

Signed-off-by: default avatarHolger Brunck <holger.brunck@hitachienergy.com>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220517135614.8185-2-holger.brunck@hitachienergy.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 8dd248fa

drivers/hwmon/lm90.c

+4 −0
Original line number Diff line number Diff line
@@ -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);
@@ -1727,6 +1728,9 @@ 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 (of_property_read_bool(np, "ti,extended-range-enable"))

			config |= 0x04;



		if (config & 0x04)

			data->flags |= LM90_FLAG_ADT7461_EXT;

	}