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Commit a6e6b63e authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Sebastian Reichel
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power_supply: max17042: Add OF support for setting thresholds 



The commit edd4ab05 ("power: max17042_battery: add HEALTH and TEMP_*
properties support") added support for setting voltage and temperature
thresholds with platform data. For DeviceTree default of 0 was always
used.

This caused reporting battery health always as over voltage or
over heated.

Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: edd4ab05 ("power: max17042_battery: add HEALTH and TEMP_* properties support")
Signed-off-by: default avatarSebastian Reichel <sre@kernel.org>
parent 5c6e3a97

Documentation/devicetree/bindings/power_supply/max17042_battery.txt

+13 −0
Original line number Diff line number Diff line
@@ -9,10 +9,23 @@ Optional properties : 
                         (datasheet-recommended value is 10000).

   Defining this property enables current-sense functionality.



Optional threshold properties :

 If skipped the condition won't be reported.

 - maxim,cold-temp :      Temperature threshold to report battery

                          as cold (in tenths of degree Celsius).

 - maxim,over-heat-temp : Temperature threshold to report battery

                          as over heated (in tenths of degree Celsius).

 - maxim,dead-volt :      Voltage threshold to report battery

                          as dead (in mV).

 - maxim,over-volt :      Voltage threshold to report battery

                          as over voltage (in mV).



Example:



	battery-charger@36 {

		compatible = "maxim,max17042";

		reg = <0x36>;

		maxim,rsns-microohm = <10000>;

		maxim,over-heat-temp = <600>;

		maxim,over-volt = <4300>;

	};

drivers/power/max17042_battery.c

+9 −0
Original line number Diff line number Diff line
@@ -809,6 +809,15 @@ max17042_get_pdata(struct device *dev) 
		pdata->enable_current_sense = true;

	}



	if (of_property_read_s32(np, "maxim,cold-temp", &pdata->temp_min))

		pdata->temp_min = INT_MIN;

	if (of_property_read_s32(np, "maxim,over-heat-temp", &pdata->temp_max))

		pdata->temp_max = INT_MAX;

	if (of_property_read_s32(np, "maxim,dead-volt", &pdata->vmin))

		pdata->vmin = INT_MIN;

	if (of_property_read_s32(np, "maxim,over-volt", &pdata->vmax))

		pdata->vmax = INT_MAX;



	return pdata;

}

#else