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Commit 760c7eda authored by Xiaozhe Shi's avatar Xiaozhe Shi
Browse files

power: qpnp-fg: turn on current termination qualification 



Sometimes when the batfet is open, a negative current could be read.
This can mess up fuel gauge based charge termination. Turn on the
current termination qualification bit to zero out the negative currents.

Change-Id: I3f3244d0ab634a822758efe6c6845c4d4ab11f0f
Signed-off-by: default avatarXiaozhe Shi <xiaozhes@codeaurora.org>
parent 9dcf8291

drivers/power/qpnp-fg.c

+4 −0
Original line number Diff line number Diff line
@@ -2576,6 +2576,7 @@ static int soc_to_setpoint(int soc) 
#define DELTA_SOC_PERCENT	1

#define THERMAL_COEFF_ADDR	0x444

#define THERMAL_COEFF_OFFSET	0x2

#define I_TERM_QUAL_BIT		BIT(1)

static int fg_hw_init(struct fg_chip *chip)

{

	u8 resume_soc;
@@ -2627,6 +2628,9 @@ static int fg_hw_init(struct fg_chip *chip) 
			THERMAL_COEFF_OFFSET, 0);

	}



	fg_mem_masked_write(chip, FG_ALG_SYSCTL_1, I_TERM_QUAL_BIT,

			I_TERM_QUAL_BIT, 0);



	return 0;

}