Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
hwmon: (ina238) Drop platform data support
There are no in-tree users of ina2xx platform data. Drop
support for it. The driver already supports device properties
which can be used as alternative if needed.
Also remove reference to the non-existing shunt_resistor sysfs
attribute from the driver documentation.
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>
+6
-10
+4
-4
Documentation/hwmon/ina238.rst
+4
-4
Documentation/hwmon/ina238.rst
···
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interface. It includes a number of programmable functions including alerts,
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conversion rate, sample averaging and selectable shunt voltage accuracy.
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The shunt value in micro-ohms can be set via platform data or device tree at
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compile-time or via the shunt_resistor attribute in sysfs at run-time. Please
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refer to the Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings
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-
if the device tree is used.
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+
The shunt value in micro-ohms can be set via device properties, either from
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platform code or from device tree data. Please refer to
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Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings if
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device tree is used.
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Sysfs entries
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-------------
+2
-6
drivers/hwmon/ina238.c
+2
-6
drivers/hwmon/ina238.c
···
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#include <linux/of.h>
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#include <linux/regmap.h>
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-
#include <linux/platform_data/ina2xx.h>
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-
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/* INA238 register definitions */
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#define INA238_CONFIG 0x0
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#define INA238_ADC_CONFIG 0x1
···
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static int ina238_probe(struct i2c_client *client)
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{
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struct ina2xx_platform_data *pdata = dev_get_platdata(&client->dev);
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struct device *dev = &client->dev;
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struct device *hwmon_dev;
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struct ina238_data *data;
···
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}
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/* load shunt value */
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data->rshunt = INA238_RSHUNT_DEFAULT;
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if (device_property_read_u32(dev, "shunt-resistor", &data->rshunt) < 0 && pdata)
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data->rshunt = pdata->shunt_uohms;
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if (device_property_read_u32(dev, "shunt-resistor", &data->rshunt) < 0)
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data->rshunt = INA238_RSHUNT_DEFAULT;
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if (data->rshunt == 0) {
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dev_err(dev, "invalid shunt resister value %u\n", data->rshunt);
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return -EINVAL;