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Commit 1cff4d65 authored by Fenglin Wu's avatar Fenglin Wu
Browse files

power: smb1398-charger: disable sync between master and slave 



Disable clock sync between master and slave and enable slave clock to
make it switching on its own clock.

Change-Id: I738b69118f8f7766d4109e551dae310204ffef4b
Signed-off-by: default avatarFenglin Wu <fenglinw@codeaurora.org>
parent 757f1d14

drivers/power/supply/qcom/smb1398-charger.c

+10 −10
Original line number Diff line number Diff line
@@ -106,6 +106,7 @@ 
#define MISC_CFG2_REG			0x2636



#define NOLOCK_SPARE_REG		0x2637

#define EN_SLAVE_OWN_FREQ_BIT		BIT(5)

#define DIV2_WIN_UV_SEL_BIT		BIT(4)

#define DIV2_WIN_UV_25MV		0

#define COMBO_WIN_LO_EXIT_SEL_MASK	GENMASK(3, 2)
@@ -1279,16 +1280,6 @@ static int smb1398_div2_cp_slave_disable_vote_cb(struct votable *votable, 
	if (!is_cps_available(chip))

		return -ENODEV;



	/* Enable/disable SYNC driver before enabling/disabling slave */

	reg = MISC_CFG0_REG;

	val = !!disable ? DIS_SYNC_DRV_BIT : 0;

	rc = smb1398_masked_write(chip, reg, DIS_SYNC_DRV_BIT, val);

	if (rc < 0) {

		dev_err(chip->dev, "%s slave SYNC_DRV failed, rc=%d\n",

				!!disable ? "disable" : "enable", rc);

		return rc;

	}



	reg = MISC_SL_SWITCH_EN_REG;

	val = !!disable ? 0 : EN_SLAVE;

	rc = smb1398_masked_write(chip, reg, EN_SLAVE, val);
@@ -2251,6 +2242,15 @@ static int smb1398_div2_cp_slave_probe(struct smb1398_chip *chip) 
		return rc;

	}



	/* Enable slave clock on its own */

	rc = smb1398_masked_write(chip, NOLOCK_SPARE_REG,

			EN_SLAVE_OWN_FREQ_BIT, EN_SLAVE_OWN_FREQ_BIT);

	if (rc < 0) {

		dev_err(chip->dev, "Couldn't enable slave clock, rc=%d\n",

				rc);

		return rc;

	}



	rc = smb1398_init_div2_cp_slave_psy(chip);

	if (rc < 0) {

		dev_err(chip->dev, "Initial div2_cp_slave_psy failed, rc=%d\n",