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Commit a24dc247 authored by Xiaozhe Shi's avatar Xiaozhe Shi
Browse files

power: qpnp-smbcharger: support ICL adjustments through DP_DM 



Support adjusting the usb ICL up and down through the DP_DM interface for
HVDCP 3.0.

CRs-Fixed: 930588
Change-Id: Ic24f946522d7ae0ec0a52f127118ac5a0d908277
Signed-off-by: default avatarXiaozhe Shi <xiaozhes@codeaurora.org>
parent 79f64706

drivers/power/qpnp-smbcharger.c

+19 −0
Original line number Diff line number Diff line
@@ -188,6 +188,7 @@ struct smbchg_chip { 
	bool				flash_triggered;

	bool				icl_disabled;

	u32				wa_flags;

	int				usb_icl_delta;



	/* jeita and temperature */

	bool				batt_hot;
@@ -322,6 +323,7 @@ enum icl_voters { 
	HVDCP_ICL_VOTER,

	USER_ICL_VOTER,

	WEAK_CHARGER_ICL_VOTER,

	SW_AICL_ICL_VOTER,

	NUM_ICL_VOTER,

};
@@ -4416,6 +4418,8 @@ static void handle_usb_removal(struct smbchg_chip *chip) 
		pr_err("Couldn't set override rc = %d\n", rc);



	vote(chip->usb_icl_votable, WEAK_CHARGER_ICL_VOTER, false, 0);

	chip->usb_icl_delta = 0;

	vote(chip->usb_icl_votable, SW_AICL_ICL_VOTER, false, 0);

	restore_from_hvdcp_detection(chip);

}
@@ -5252,6 +5256,7 @@ static int smbchg_hvdcp3_confirmed(struct smbchg_chip *chip) 
static int smbchg_dp_dm(struct smbchg_chip *chip, int val)

{

	int rc = 0;

	int target_icl_vote_ma;



	switch (val) {

	case POWER_SUPPLY_DP_DM_PREPARE:
@@ -5297,6 +5302,20 @@ static int smbchg_dp_dm(struct smbchg_chip *chip, int val) 
		chip->hvdcp3_supported = true;

		pr_smb(PR_MISC, "HVDCP3 supported\n");

		break;

	case POWER_SUPPLY_DP_DM_ICL_DOWN:

		chip->usb_icl_delta -= 100;

		target_icl_vote_ma = get_client_vote(chip->usb_icl_votable,

						PSY_ICL_VOTER);

		vote(chip->usb_icl_votable, SW_AICL_ICL_VOTER, true,

				target_icl_vote_ma + chip->usb_icl_delta);

		break;

	case POWER_SUPPLY_DP_DM_ICL_UP:

		chip->usb_icl_delta += 100;

		target_icl_vote_ma = get_client_vote(chip->usb_icl_votable,

						PSY_ICL_VOTER);

		vote(chip->usb_icl_votable, SW_AICL_ICL_VOTER, true,

				target_icl_vote_ma + chip->usb_icl_delta);

		break;

	default:

		break;

	}