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Commit 145d2d39 authored by Harry Yang's avatar Harry Yang
Browse files

qcom: smb1355: restart charging after bat-discharge 



SMB1355 is designed to have a minimum charging current of 500mA,
below which charging will be disabled and remain so even after
the current rise above.

Set to keep attempting re-enabling of charging until charging is
disabled by master or input is unplugged. Make the retry interval
250ms.

Change-Id: I348fe80023186dea29cb9142404f2c46a216ed37
Signed-off-by: default avatarHarry Yang <harryy@codeaurora.org>
parent 4d9a308b

drivers/power/supply/qcom/smb1355-charger.c

+14 −0
Original line number Diff line number Diff line
@@ -62,6 +62,10 @@ 
#define CHGR_BATTOV_CFG_REG			(CHGR_BASE + 0x70)

#define BATTOV_SETTING_MASK			GENMASK(7, 0)



#define POWER_MODE_HICCUP_CFG			(BATIF_BASE + 0x72)

#define MAX_HICCUP_DUETO_BATDIS_MASK		GENMASK(5, 2)

#define HICCUP_TIMEOUT_CFG_MASK			GENMASK(1, 0)



#define TEMP_COMP_STATUS_REG			(MISC_BASE + 0x07)

#define SKIN_TEMP_RST_HOT_BIT			BIT(6)

#define SKIN_TEMP_UB_HOT_BIT			BIT(5)
@@ -580,6 +584,16 @@ static int smb1355_init_hw(struct smb1355 *chip) 
		return rc;

	}



	/* HICCUP setting, unlimited retry with 250ms interval */

	rc = smb1355_masked_write(chip, POWER_MODE_HICCUP_CFG,

			HICCUP_TIMEOUT_CFG_MASK | MAX_HICCUP_DUETO_BATDIS_MASK,

			0);

	if (rc < 0) {

		pr_err("Couldn't enable parallel current sensing rc=%d\n",

			rc);

		return rc;

	}



	/* enable parallel current sensing */

	rc = smb1355_masked_write(chip, CFG_REG,

				 VCHG_EN_CFG_BIT, VCHG_EN_CFG_BIT);