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Commit ca6f898b authored by Harry Yang's avatar Harry Yang Committed by Guru Das Srinagesh
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power: smb5: Disable DC Input missing poller function 



Wireless parallel charging stop is observed when PM8150B buck current
runs low, triggering input missing poller.

This can happen when there is a sudden spike in Isys load which causes
VPH dip, as a result, parallel charger supplys higher current but PM8150
buck transitions into skip mode.

Fix it by disabling DC Input missing poller function.

There were concerns about accidental reverse boost with this changes,
but numerous wireless unplug events did not show it.

Change-Id: Ibefd8c21b575cecf0c79d28c9e2b75e63d17c630
Signed-off-by: default avatarHarry Yang <harryy@codeaurora.org>
Signed-off-by: default avatarGuru Das Srinagesh <gurus@codeaurora.org>
parent f9e751cf

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

+9 −0
Original line number Diff line number Diff line
@@ -1996,6 +1996,15 @@ static int smb5_init_hw(struct smb5 *chip) 
		return rc;

	}



	/* Disable DC Input missing poller function */

	rc = smblib_masked_write(chg, DCIN_LOAD_CFG_REG,

					INPUT_MISS_POLL_EN_BIT, 0);

	if (rc < 0) {

		dev_err(chg->dev,

			"Couldn't disable DC Input missing poller rc=%d\n", rc);

		return rc;

	}



	/*

	 * AICL configuration:

	 * start from min and AICL ADC disable, and enable aicl rerun

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

+3 −0
Original line number Diff line number Diff line
@@ -298,6 +298,9 @@ enum { 
#define DCIN_CMD_IL_REG				(DCIN_BASE + 0x40)

#define DCIN_SUSPEND_BIT			BIT(0)



#define DCIN_LOAD_CFG_REG			(DCIN_BASE + 0x65)

#define INPUT_MISS_POLL_EN_BIT			BIT(5)



/********************************

 *  TYPEC Peripheral Registers  *

 ********************************/