Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 875c6be9 authored by Umang Chheda's avatar Umang Chheda
Browse files

power: smb5: Add property to limit QC2.0 input current 



Some QC2.0 adapters collapse with 3A ICL, add a logic to
limit the ICL to 2A.
Use DT property "qcom,hvdcp2-max-icl-ua" to limit the value.

Change-Id: Ia03c971f388470e5b5770d6e7271e3298c84db57
Signed-off-by: default avatarUmang Chheda <uchheda@codeaurora.org>
parent fd8f045d

drivers/power/supply/qcom/battery.h

+2 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (c) 2017, 2019 The Linux Foundation. All rights reserved.

 * Copyright (c) 2017, 2019-2020 The Linux Foundation. All rights reserved.

 */



#ifndef __BATTERY_H
@@ -10,6 +10,7 @@ struct charger_param { 
	u32 fcc_step_delay_ms;

	u32 fcc_step_size_ua;

	u32 smb_version;

	u32 hvdcp2_max_icl_ua;

	u32 hvdcp3_max_icl_ua;

	u32 forced_main_fcc;

};

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

+6 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2020 The Linux Foundation. All rights reserved.

 */



#include <linux/debugfs.h>
@@ -599,6 +599,11 @@ static int smb5_parse_dt_misc(struct smb5 *chip, struct device_node *node) 
	if (chg->chg_param.hvdcp3_max_icl_ua <= 0)

		chg->chg_param.hvdcp3_max_icl_ua = MICRO_3PA;



	of_property_read_u32(node, "qcom,hvdcp2-max-icl-ua",

					&chg->chg_param.hvdcp2_max_icl_ua);

	if (chg->chg_param.hvdcp2_max_icl_ua <= 0)

		chg->chg_param.hvdcp2_max_icl_ua = MICRO_3PA;



	return 0;

}

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

+8 −1
Original line number Diff line number Diff line
@@ -5511,16 +5511,23 @@ static void smblib_handle_hvdcp_3p0_auth_done(struct smb_charger *chg, 
static void smblib_handle_hvdcp_check_timeout(struct smb_charger *chg,

					      bool rising, bool qc_charger)

{

	u32 hvdcp_ua = 0;



	if (rising) {



		if (qc_charger) {

			hvdcp_ua = (chg->real_charger_type ==

					POWER_SUPPLY_TYPE_USB_HVDCP) ?

					chg->chg_param.hvdcp2_max_icl_ua :

					HVDCP_CURRENT_UA;



			/* enable HDC and ICL irq for QC2/3 charger */

			vote(chg->limited_irq_disable_votable,

					CHARGER_TYPE_VOTER, false, 0);

			vote(chg->hdc_irq_disable_votable,

					CHARGER_TYPE_VOTER, false, 0);

			vote(chg->usb_icl_votable, SW_ICL_MAX_VOTER, true,

				HVDCP_CURRENT_UA);

					hvdcp_ua);

		} else {

			/* A plain DCP, enforce DCP ICL if specified */

			vote(chg->usb_icl_votable, DCP_VOTER,