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Commit b2555d39 authored by Ankit Sharma's avatar Ankit Sharma
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power: Add snapshot of qpnp-smb2 charger and dependent modules 



Add a snapshot of the qpnp-smb2 charger driver and supportive files.
This charger driver supports the PM660 charger module.

This snapshot is taken as of msm-4.4
commit d9fbe4b9210b ("Merge "ARM: dts: msm: Remove WLED short circuit
properties for PM660"")

CRs-Fixed: 2076000
Change-Id: I99d7f1e951afc93916dd77c9d44d3a5963d4ea51
Signed-off-by: default avatarAnkit Sharma <ansharma@codeaurora.org>
parent f67a2861

Documentation/devicetree/bindings/power/qpnp-smb2.txt

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Qualcomm Technologies, Inc. SMB2 Charger Specific Bindings



SMB2 Charger is an efficient programmable battery charger capable of charging a

high-capacity lithium-ion battery over micro-USB or USB Type-C ultrafast with

Quick Charge 2.0, Quick Charge 3.0, and USB Power Delivery support. Wireless

charging features full A4WP Rezence 1.2, WPC 1.2, and PMA support.



=======================

Required Node Structure

=======================



SMB2 Charger must be described in two levels of devices nodes.



===============================

First Level Node - SMB2 Charger

===============================



Charger specific properties:

- compatible

  Usage:      required

  Value type: <string>

  Definition: "qcom,qpnp-smb2".



- qcom,pmic-revid

  Usage:      required

  Value type: phandle

  Definition: Should specify the phandle of PMI's revid module. This is used to

		identify the PMI subtype.



- qcom,batteryless-platform

  Usage:      optional

  Value type: <empty>

  Definition: Boolean flag which indicates that the platform does not have a

		battery, and therefore charging should be disabled. In

		addition battery properties will be faked such that the device

		assumes normal operation.



- qcom,fcc-max-ua

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the maximum fast charge current in micro-amps.

		If the value is not present, 1Amp is used as default.



- qcom,fv-max-uv

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the maximum float voltage in micro-volts.

		If the value is not present, 4.35V is used as default.



- qcom,usb-icl-ua

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the USB input current limit in micro-amps.

		 If the value is not present, 1.5Amps is used as default.



- qcom,usb-ocl-ua

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the OTG output current limit in micro-amps.

		If the value is not present, 1.5Amps is used as default



- qcom,dc-icl-ua

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the DC input current limit in micro-amps.



- qcom,boost-threshold-ua

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the boost current threshold in micro-amps.

		If the value is not present, 100mA is used as default.



- qcom,wipower-max-uw

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the DC input power limit in micro-watts.

		If the value is not present, 8W is used as default.



- qcom,thermal-mitigation

  Usage:      optional

  Value type: Array of <u32>

  Definition: Array of fast charge current limit values for

		different system thermal mitigation levels.

		This should be a flat array that denotes the

		maximum charge current in mA for each thermal

		level.



- qcom,step-soc-thresholds

  Usage:      optional

  Value type: Array of <u32>

  Definition: Array of SOC threshold values, size of 4. This should be a

		flat array that denotes the percentage ranging from 0 to 100.

		If the array is not present, step charging is disabled.



- qcom,step-current-deltas

  Usage:      optional

  Value type: Array of <s32>

  Definition: Array of delta values for charging current, size of 5, with

		FCC as base.  This should be a flat array that denotes the

		offset of charging current in uA, from -3100000 to 3200000.

		If the array is not present, step charging is disabled.



- io-channels

  Usage:      optional

  Value type: List of <phandle u32>

  Definition: List of phandle and IIO specifier pairs, one pair

		for each IIO input to the device. Note: if the

		IIO provider specifies '0' for #io-channel-cells,

		then only the phandle portion of the pair will appear.



- io-channel-names

  Usage:      optional

  Value type: List of <string>

  Definition: List of IIO input name strings sorted in the same

		order as the io-channels property. Consumer drivers

		will use io-channel-names to match IIO input names

		with IIO specifiers.



- qcom,float-option

  Usage:      optional

  Value type: <u32>

  Definition: Configures how the charger behaves when a float charger is

	      detected by APSD

	        1 - Treat as a DCP

	        2 - Treat as a SDP

	        3 - Disable charging

                4 - Suspend USB input



- qcom,hvdcp-disable

  Usage:      optional

  Value type: <empty>

  Definition: Specifies if hvdcp charging is to be enabled or not.

		If this property is not specified hvdcp will be enabled.

		If this property is specified, hvdcp 2.0 detection will still

		happen but the adapter won't be asked to switch to a higher

		voltage point.



- qcom,chg-inhibit-threshold-mv

  Usage:      optional

  Value type: <u32>

  Definition: Charge inhibit threshold in milli-volts. Charging will be

		inhibited when the battery voltage is within this threshold

		from Vfloat at charger insertion. If this is not specified

		then charge inhibit will be disabled by default.

		Allowed values are: 50, 100, 200, 300.



- qcom,auto-recharge-soc

  Usage:      optional

  Value type: <empty>

  Definition: Specifies if automatic recharge needs to be based off battery

		SOC. If this property is not specified, then auto recharge will

		be based off battery voltage. For both SOC and battery voltage,

		charger receives the signal from FG to resume charging.



- qcom,micro-usb

  Usage:      optional

  Value type: <empty>

  Definition: Boolean flag which indicates that the platform only support

		micro usb port.



- qcom,suspend-input-on-debug-batt

  Usage:      optional

  Value type: <empty>

  Definition: Boolean flag which when present enables intput suspend for

		debug battery.



- qcom,min-freq-khz

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the minimum charger buck/boost switching frequency

		in KHz. It overrides the min frequency defined for the charger.



- qcom,max-freq-khz

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the maximum charger buck/boost switching frequency in

		 KHz. It overrides the max frequency defined for the charger.



- qcom,otg-deglitch-time-ms

  Usage:      optional

  Value type: <u32>

  Definition: Specifies the deglitch interval for OTG detection.

		If the value is not present, 50 msec is used as default.



=============================================

Second Level Nodes - SMB2 Charger Peripherals

=============================================



Peripheral specific properties:

- reg

  Usage:      required

  Value type: <prop-encoded-array>

  Definition: Address and size of the peripheral's register block.



- interrupts

  Usage:      required

  Value type: <prop-encoded-array>

  Definition: Peripheral interrupt specifier.



- interrupt-names

  Usage:      required

  Value type: <stringlist>

  Definition: Interrupt names.  This list must match up 1-to-1 with the

	      interrupts specified in the 'interrupts' property.



=======

Example

=======



pmi8998_charger: qcom,qpnp-smb2 {

	compatible = "qcom,qpnp-smb2";

	#address-cells = <1>;

	#size-cells = <1>;



	io-channels = <&pmic_rradc 0>;

	io-channel-names = "rradc_batt_id";



	dpdm-supply = <&qusb_phy0>;



	qcom,step-soc-thresholds = <60 70 80 90>;

	qcom,step-current-deltas = <500000 250000 150000 0 (-150000)>;



	qcom,chgr@1000 {

		reg = <0x1000 0x100>;

		interrupts =    <0x2 0x10 0x0 IRQ_TYPE_NONE>,

				<0x2 0x10 0x1 IRQ_TYPE_NONE>,

				<0x2 0x10 0x2 IRQ_TYPE_NONE>,

				<0x2 0x10 0x3 IRQ_TYPE_NONE>,

				<0x2 0x10 0x4 IRQ_TYPE_NONE>;



		interrupt-names =       "chg-error",

					"chg-state-change",

					"step-chg-state-change",

					"step-chg-soc-update-fail",

					"step-chg-soc-update-request";

	};



	qcom,otg@1100 {

		reg = <0x1100 0x100>;

		interrupts =    <0x2 0x11 0x0 IRQ_TYPE_NONE>,

				<0x2 0x11 0x1 IRQ_TYPE_NONE>,

				<0x2 0x11 0x2 IRQ_TYPE_NONE>,

				<0x2 0x11 0x3 IRQ_TYPE_NONE>;



		interrupt-names =       "otg-fail",

					"otg-overcurrent",

					"otg-oc-dis-sw-sts",

					"testmode-change-detect";

	};



	qcom,bat-if@1200 {

		reg = <0x1200 0x100>;

		interrupts =    <0x2 0x12 0x0 IRQ_TYPE_NONE>,

				<0x2 0x12 0x1 IRQ_TYPE_NONE>,

				<0x2 0x12 0x2 IRQ_TYPE_NONE>,

				<0x2 0x12 0x3 IRQ_TYPE_NONE>,

				<0x2 0x12 0x4 IRQ_TYPE_NONE>,

				<0x2 0x12 0x5 IRQ_TYPE_NONE>;



		interrupt-names =       "bat-temp",

					"bat-ocp",

					"bat-ov",

					"bat-low",

					"bat-therm-or-id-missing",

					"bat-terminal-missing";

	};



	qcom,usb-chgpth@1300 {

		reg = <0x1300 0x100>;

		interrupts =    <0x2 0x13 0x0 IRQ_TYPE_NONE>,

				<0x2 0x13 0x1 IRQ_TYPE_NONE>,

				<0x2 0x13 0x2 IRQ_TYPE_NONE>,

				<0x2 0x13 0x3 IRQ_TYPE_NONE>,

				<0x2 0x13 0x4 IRQ_TYPE_NONE>,

				<0x2 0x13 0x5 IRQ_TYPE_NONE>,

				<0x2 0x13 0x6 IRQ_TYPE_NONE>,

				<0x2 0x13 0x7 IRQ_TYPE_NONE>;



		interrupt-names =       "usbin-collapse",

					"usbin-lt-3p6v",

					"usbin-uv",

					"usbin-ov",

					"usbin-plugin",

					"usbin-src-change",

					"usbin-icl-change",

					"type-c-change";

	};



	qcom,dc-chgpth@1400 {

		reg = <0x1400 0x100>;

		interrupts =    <0x2 0x14 0x0 IRQ_TYPE_NONE>,

				<0x2 0x14 0x1 IRQ_TYPE_NONE>,

				<0x2 0x14 0x2 IRQ_TYPE_NONE>,

				<0x2 0x14 0x3 IRQ_TYPE_NONE>,

				<0x2 0x14 0x4 IRQ_TYPE_NONE>,

				<0x2 0x14 0x5 IRQ_TYPE_NONE>,

				<0x2 0x14 0x6 IRQ_TYPE_NONE>;



		interrupt-names =       "dcin-collapse",

					"dcin-lt-3p6v",

					"dcin-uv",

					"dcin-ov",

					"dcin-plugin",

					"div2-en-dg",

					"dcin-icl-change";

	};



	qcom,chgr-misc@1600 {

		reg = <0x1600 0x100>;

		interrupts =    <0x2 0x16 0x0 IRQ_TYPE_NONE>,

				<0x2 0x16 0x1 IRQ_TYPE_NONE>,

				<0x2 0x16 0x2 IRQ_TYPE_NONE>,

				<0x2 0x16 0x3 IRQ_TYPE_NONE>,

				<0x2 0x16 0x4 IRQ_TYPE_NONE>,

				<0x2 0x16 0x5 IRQ_TYPE_NONE>,

				<0x2 0x16 0x6 IRQ_TYPE_NONE>,

				<0x2 0x16 0x7 IRQ_TYPE_NONE>;



		interrupt-names =       "wdog-snarl",

					"wdog-bark",

					"aicl-fail",

					"aicl-done",

					"high-duty-cycle",

					"input-current-limiting",

					"temperature-change",

					"switcher-power-ok";

	};

};

drivers/power/Kconfig

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@@ -506,6 +506,16 @@ config QPNP_SMBCHARGER 
	  The driver also offers relevant information to userspace via the

	  power supply framework.



config QPNP_SMB2

	tristate "QPNP SMB Charger driver"

	depends on SPMI || MSM_SPMI

	depends on OF_SPMI

	help

	  Enables support for the SMB2 charging peripheral.

	  This charger module supports Type-C and uUSB interface with

	  autonomous charging and APSD for different charging sources.

	  This module also interfaces USB PD for power-delivery support.



config FUELGAUGE_STC3117

	tristate "STC3117 fuel gauge driver"

	default n

drivers/power/Makefile

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@@ -74,6 +74,7 @@ obj-$(CONFIG_QPNP_FG) += qpnp-fg.o 
obj-$(CONFIG_QPNP_CHARGER)	+= qpnp-charger.o

obj-$(CONFIG_QPNP_LINEAR_CHARGER)	+= qpnp-linear-charger.o

obj-$(CONFIG_QPNP_SMBCHARGER)	+= qpnp-smbcharger.o pmic-voter.o

obj-$(CONFIG_QPNP_SMB2)		+= battery.o qpnp-smb2.o pmic-voter.o smb-lib.o storm-watch.o

obj-$(CONFIG_QPNP_TYPEC)	+= qpnp-typec.o

obj-$(CONFIG_CHARGER_TPS65090)	+= tps65090-charger.o

obj-$(CONFIG_BATTERY_BCL)	+= battery_current_limit.o

drivers/power/battery.c

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File added.

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drivers/power/battery.h

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

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#ifndef __BATTERY_H

#define __BATTERY_H

int qcom_batt_init(void);

void qcom_batt_deinit(void);

#endif /* __BATTERY_H */