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Commit 4e4e8e74 authored by Fenglin Wu's avatar Fenglin Wu
Browse files

of_batterydata: Add properties for step-chg/sw-jeita settings 



Step charging and JEITA range settings may be different between battery
modules. Add properties to support step charging and JEITA settings for
different battery so that charger driver could apply these battery
specific settings accordingly.

Change-Id: Ibe6539ba66beba76595de1783ca988fe259424b2
Signed-off-by: default avatarFenglin Wu <fenglinw@codeaurora.org>
parent 4150bab0

Documentation/devicetree/bindings/batterydata/batterydata.txt

+47 −0
Original line number Diff line number Diff line
@@ -64,6 +64,43 @@ Profile data node optional properties: 
			battery thermistor. This should be exactly 6 bytes

			in length.

			Example: [01 02 03 04 05 06]

- qcom,soc-based-step-chg: A bool property to indicate if the battery will

			perform SoC (State of Charge) based step charging.

			If yes, the low and high thresholds defined in

			"qcom,step-chg-ranges" tuples should be assigned as

			SoC values in percentage.

- qcom,step-chg-ranges: Array of tuples in which a tuple describes a range

			data of step charging setting.

			A range contains following 3 integer elements:

			[0]: the low threshold of battery votlage in uV

			     or SoC (State of Charge) in percentage when

			     SoC based step charge is used;

			[1]: the high threshold of battery voltage in uV

			     or SoC in percentage when SoC based step charge

			     is used;

			[2]: the FCC (full charging current) in uA when battery

			     voltage or SoC falls between the low and high

			     thresholds.

			The threshold values in range should be in ascending

			and shouldn't overlap. It support 8 ranges at max.

- qcom,jeita-fcc-ranges: Array of tuples in which a tuple describes a range

			data of sw-jeita FCC (full charging current) setting.

			A range contains following 3 integer elements:

			[0]: the low threshold of battery temperature in deci-degree;

			[1]: the high threshold of battery temperature in deci-degree;

			[2]: the FCC in uA when battery temperature falls between

			     the low and high thresholds.

			The threshold values in range should be in ascending

			and shouldn't overlap. It support 8 ranges at max.

- qcom,jeita-fv-ranges: Array of tuples in which a tuple describes a range

			data of sw-jeita FV (float voltage) setting.

			A range contains following 3 integer elements:

			[0]: the low threshold of battery temperature in deci-degree;

			[1]: the high threshold of battery temperature in deci-degree;

			[3]: the FV in uV when battery temperature falls between

			     the low and high thresholds.

			The threshold values in range should be in ascending

			and shouldn't overlap. It support 8 ranges at max.



Profile data node required subnodes:

- qcom,fcc-temp-lut : An 1-dimensional lookup table node that encodes
@@ -128,6 +165,16 @@ qcom,palladium-batterydata { 
	qcom,v-cutoff-uv = <3400000>;

	qcom,chg-term-ua = <100000>;

	qcom,batt-id-kohm = <75>;

	qcom,step-chg-ranges = <3600000 4000000 3000000

				4001000 4200000 2800000

				4201000 4400000 2000000>;

	qcom,jeita-fcc-ranges = <0      100     600000

				 101    200     2000000

				 201    450     3000000

				 451    550     600000>;

	qcom,jeita-fv-ranges = <0      100     4200000

				101    450     4350000

				451    550     4200000>;

	qcom,battery-type = "palladium_1500mah";



	qcom,fcc-temp-lut {