Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
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drivers/hwmon/ina238.c
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drivers/hwmon/ina238.c
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#define INA238_ADC_CONFIG_DEFAULT 0xfb6a
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/* Configure alerts to be based on averaged value (SLOWALERT) */
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#define INA238_DIAG_ALERT_DEFAULT 0x2000
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#define INA238_DIAG_ALERT_APOL BIT(12)
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/*
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* This driver uses a fixed calibration value in order to scale current/power
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* based on a fixed shunt resistor value. This allows for conversion within the
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}
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/* Setup alert/alarm configuration */
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ret = regmap_write(data->regmap, INA238_DIAG_ALERT,
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INA238_DIAG_ALERT_DEFAULT);
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config = INA238_DIAG_ALERT_DEFAULT;
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if (device_property_read_bool(dev, "ti,alert-polarity-active-high"))
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config |= INA238_DIAG_ALERT_APOL;
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ret = regmap_write(data->regmap, INA238_DIAG_ALERT, config);
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if (ret < 0) {
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dev_err(dev, "error configuring the device: %d\n", ret);
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return -ENODEV;