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Commit 33abe70a authored by Harry Yang's avatar Harry Yang Committed by Guru Das Srinagesh
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power: smb5: Reduce DCD timeout to 300ms 



The default DCD Timeout is 600ms. Shorten it to 300ms per HW
recommendation for Type-C compliance.

CRs-Fixed: 2387191
Change-Id: Icd0330b5a5c468d384ec495a5e75561a216d6db7
Signed-off-by: default avatarHarry Yang <harryy@codeaurora.org>
Signed-off-by: default avatarGuru Das Srinagesh <gurus@codeaurora.org>
parent 07be0b4a

drivers/power/supply/qcom/qpnp-smb5.c

+11 −19
Original line number Diff line number Diff line
@@ -2208,40 +2208,32 @@ static int smb5_configure_recharging(struct smb5 *chip) 
static int smb5_configure_float_charger(struct smb5 *chip)

{

	int rc = 0;

	u8 val = 0;

	struct smb_charger *chg = &chip->chg;



	/* configure float charger options */

	switch (chip->dt.float_option) {

	case FLOAT_DCP:

		rc = smblib_masked_write(chg, USBIN_OPTIONS_2_CFG_REG,

				FLOAT_OPTIONS_MASK, 0);

		break;

	case FLOAT_SDP:

		rc = smblib_masked_write(chg, USBIN_OPTIONS_2_CFG_REG,

				FLOAT_OPTIONS_MASK, FORCE_FLOAT_SDP_CFG_BIT);

		val = FORCE_FLOAT_SDP_CFG_BIT;

		break;

	case DISABLE_CHARGING:

		rc = smblib_masked_write(chg, USBIN_OPTIONS_2_CFG_REG,

				FLOAT_OPTIONS_MASK, FLOAT_DIS_CHGING_CFG_BIT);

		val = FLOAT_DIS_CHGING_CFG_BIT;

		break;

	case SUSPEND_INPUT:

		rc = smblib_masked_write(chg, USBIN_OPTIONS_2_CFG_REG,

				FLOAT_OPTIONS_MASK, SUSPEND_FLOAT_CFG_BIT);

		val = SUSPEND_FLOAT_CFG_BIT;

		break;

	case FLOAT_DCP:

	default:

		rc = 0;

		val = 0;

		break;

	}



	chg->float_cfg = val;

	/* Update float charger setting and set DCD timeout 300ms */

	rc = smblib_masked_write(chg, USBIN_OPTIONS_2_CFG_REG,

				FLOAT_OPTIONS_MASK | DCD_TIMEOUT_SEL_BIT, val);

	if (rc < 0) {

		dev_err(chg->dev, "Couldn't configure float charger options rc=%d\n",

			rc);

		return rc;

	}



	rc = smblib_read(chg, USBIN_OPTIONS_2_CFG_REG, &chg->float_cfg);

	if (rc < 0) {

		dev_err(chg->dev, "Couldn't read float charger options rc=%d\n",

		dev_err(chg->dev, "Couldn't change float charger setting rc=%d\n",

			rc);

		return rc;

	}

drivers/power/supply/qcom/smb5-reg.h

+1 −0
Original line number Diff line number Diff line
@@ -280,6 +280,7 @@ enum { 
#define HVDCP_EN_BIT				BIT(2)



#define USBIN_OPTIONS_2_CFG_REG			(USBIN_BASE + 0x63)

#define DCD_TIMEOUT_SEL_BIT			BIT(5)

#define FLOAT_OPTIONS_MASK			GENMASK(2, 0)

#define FLOAT_DIS_CHGING_CFG_BIT		BIT(2)

#define SUSPEND_FLOAT_CFG_BIT			BIT(1)