diff options
| author |   Holger Brunck <holger.brunck@hitachienergy.com> | 2022-05-17 15:56:14 +0200 |
|---|---|---|
| committer |   Guenter Roeck <linux@roeck-us.net> | 2022-05-22 11:32:32 -0700 |
| commit | 45988d907859b8e6c620c7b8742f65f5b1fbb565 (patch) | |
| tree | 47ca39eb3e1761deeb4f0293dd61bb4442f71fcc /drivers/hwmon | |
| parent | dt-bindings: hwmon: lm90: add ti,extended-range-enable property (diff) | |
| download | linux-dev-45988d907859b8e6c620c7b8742f65f5b1fbb565.tar.xz linux-dev-45988d907859b8e6c620c7b8742f65f5b1fbb565.zip | |
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: Holger Brunck <holger.brunck@hitachienergy.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220517135614.8185-2-holger.brunck@hitachienergy.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/lm90.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 1c9493c70813..3820f0e61510 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); @@ -1727,6 +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; } |