diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2025-09-01 18:37:15 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2025-09-08 02:34:55 +0300 |
| commit | 807e315bf9509f4d57eca687c9732ce16c3ef843 (patch) | |
| tree | 2acf547f8cd5bbb495e8ce5a8569e90859699012 /drivers/hwmon | |
| parent | cc67b875c9e40ef7628219a37447c477d5324dc1 (diff) | |
| download | linux-807e315bf9509f4d57eca687c9732ce16c3ef843.tar.xz | |
hwmon: (ina238) Support active-high alert polarity
All chips supported by this driver support configurable active-high
alert priority. This is already documented in the devicetree description.
Add support for it to the driver.
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # INA780
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/ina238.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/hwmon/ina238.c b/drivers/hwmon/ina238.c index 4d5b383b2521..24e396c69ae2 100644 --- a/drivers/hwmon/ina238.c +++ b/drivers/hwmon/ina238.c @@ -60,6 +60,7 @@ #define INA238_ADC_CONFIG_DEFAULT 0xfb6a /* Configure alerts to be based on averaged value (SLOWALERT) */ #define INA238_DIAG_ALERT_DEFAULT 0x2000 +#define INA238_DIAG_ALERT_APOL BIT(12) /* * This driver uses a fixed calibration value in order to scale current/power * based on a fixed shunt resistor value. This allows for conversion within the @@ -793,8 +794,11 @@ static int ina238_probe(struct i2c_client *client) } /* Setup alert/alarm configuration */ - ret = regmap_write(data->regmap, INA238_DIAG_ALERT, - INA238_DIAG_ALERT_DEFAULT); + config = INA238_DIAG_ALERT_DEFAULT; + if (device_property_read_bool(dev, "ti,alert-polarity-active-high")) + config |= INA238_DIAG_ALERT_APOL; + + ret = regmap_write(data->regmap, INA238_DIAG_ALERT, config); if (ret < 0) { dev_err(dev, "error configuring the device: %d\n", ret); return -ENODEV; |