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Commit 5feefbb5 authored Dec 07, 2017 by Subbaraman Narayanamurthy

power: qpnp-fg-gen3: Update ESR filter coefficients for low temperature



As per the hardware recommendation, update ESR tight and broad
filter coefficients for low temperature (< 10 C) to 3 %.

CRs-Fixed: 2155610
Change-Id: I7e5a77bcd14ad64459f6bd13f0be0551dcbefdba
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>

parent 65788317

Documentation/devicetree/bindings/power/supply/qcom/qpnp-fg-gen3.txt

+2 −2

Original line number	Diff line number	Diff line
		@@ -380,7 +380,7 @@ First Level Node - FG Gen3 device
		Value type: <u32>
		Definition: Value in micro percentage for low temperature ESR tight
		filter. If this is not specified, then a default value of
		48829 (4.88 %) will be used. Lowest possible value is 1954
		30000 (3 %) will be used. Lowest possible value is 1954
		(0.19 %).

		- qcom,fg-esr-broad-lt-filter-micro-pct
		@@ -388,7 +388,7 @@ First Level Node - FG Gen3 device
		Value type: <u32>
		Definition: Value in micro percentage for low temperature ESR broad
		filter. If this is not specified, then a default value of
		148438 (14.84 %) will be used. Lowest possible value is
		30000 (3 %) will be used. Lowest possible value is
		1954 (0.19 %).

		- qcom,fg-auto-recharge-soc

drivers/power/supply/qcom/qpnp-fg-gen3.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -4801,8 +4801,8 @@ static int fg_parse_ki_coefficients(struct fg_chip *chip)
		#define DEFAULT_ESR_FLT_TEMP_DECIDEGC 100
		#define DEFAULT_ESR_TIGHT_FLT_UPCT 3907
		#define DEFAULT_ESR_BROAD_FLT_UPCT 99610
		#define DEFAULT_ESR_TIGHT_LT_FLT_UPCT 48829
		#define DEFAULT_ESR_BROAD_LT_FLT_UPCT 148438
		#define DEFAULT_ESR_TIGHT_LT_FLT_UPCT 30000
		#define DEFAULT_ESR_BROAD_LT_FLT_UPCT 30000
		#define DEFAULT_ESR_CLAMP_MOHMS 20
		#define DEFAULT_ESR_PULSE_THRESH_MA 110
		#define DEFAULT_ESR_MEAS_CURR_MA 120