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Commit cfecfde6 authored by Anirudh Ghayal's avatar Anirudh Ghayal Committed by Abhijeet Dharmapurikar
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power: smb349-charger: Add smb349 charger driver 



This driver supports SMB349 switching mode based charger.
It allows charging control (enable/disable) and configuring
charge-current. It supports USB VBUS detection and notification
via the power_supply framework.

Change-Id: Id6da74d5be804c7f88370f7e239d631a2f9bfe9a
Signed-off-by: default avatarAnirudh Ghayal <aghayal@codeaurora.org>
parent ad74d0a5

Documentation/devicetree/bindings/power/smb349-charger.txt

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Summit smb349 battery charger



SMB349 is a single-cell battery charger. It can charge

the battery and power the system via the USB/AC adapter input.



The smb349 interface is via I2C bus.



Required Properties:

- compatible:			Must be "qcom,smb349-charger".

- reg:				The device 7-bit I2C address.



Optional Properties:



- interrupts			This indicates the IRQ number of the GPIO

				connected to the STAT pin.

- qcom,chg-valid-gpio		GPIO which indicates the charger presence.

				This GPIO is connected to the SYSOK pin.

- qcom,fastchg-current-max-ma Fast Charging current in mA. Supported range is

				from 1000mA to 4000mA.

- qcom,chg-autonomous-mode	This is a bool property and it indicates that the

				charger is configured for autonomous operation and

				does not require any software configuration.

- qcom,enable-chg-type-detection This is bool property and it indicates

				if charger detection is supported by this

				driver.

- qcom,disable-apsd		This is a bool property which disables Automatic

				power source detection (apsd). If this is set

				charger detection is done by DCIN UV irq.

- qcom,charger-disabled	This is a bool property which disables charging.



- qcom,reload-smb-config	This is a bool property to indicate if the

				smb register configuration needs to be reloaded

				when the charger is removed.

- qcom,bms-psy-name		This is a string and it points to the bms

				power supply name.



Example:

	i2c@f9967000 {

		smb349-charger@1b {

			compatible = "qcom,smb349-charger";

			reg = <0x1b>;

			interrupt-parent = <&msmgpio>;

			interrupts = <48 0x0>;

			qcom,chg-valid-gpio = <&msm_gpio 13 0x00>;

			qcom,fastchg-current-max-ma = <3500>;

			qcom,chg-autonomous-mode;

			qcom,bms-psy-name = "bms";

		};

	};

drivers/power/Kconfig

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@@ -416,6 +416,16 @@ config SMB349_CHARGER 
	  SMB349 be operated as a slave device via the power supply

	  framework.



config SMB349_USB_CHARGER

	tristate "smb349 usb charger (with VBUS detection)"

	depends on I2C

	help

	 Say Y to enable support for the SMB349 switching mode based charger.

	 The driver supports charging control (enable/disable) and

	 charge-current limiting. It also provides USB VBUS detection and

	 notification support. The driver controls SMB349 via I2C and

	 supports device-tree interface.



config SMB350_CHARGER

	tristate "smb350 charger"

	depends on I2C

drivers/power/Makefile

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@@ -57,6 +57,7 @@ obj-$(CONFIG_BATTERY_MSM8X60) += msm_charger.o 
obj-$(CONFIG_PM8058_CHARGER)    += pmic8058-charger.o

obj-$(CONFIG_ISL9519_CHARGER)   += isl9519q.o

obj-$(CONFIG_SMB349_CHARGER)   += smb349.o

obj-$(CONFIG_SMB349_USB_CHARGER)   += smb349-charger.o

obj-$(CONFIG_SMB350_CHARGER)   += smb350_charger.o

obj-$(CONFIG_PM8058_FIX_USB)    += pm8058_usb_fix.o

obj-$(CONFIG_BATTERY_QCIBAT)    += qci_battery.o

drivers/power/smb349-charger.c

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File added.

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