extcon: Add fsa9480 extcon driver

This patch adds extcon driver for Fairchild Semiconductor FSA9480 microUSB switch. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
tom3q · Sep 13, 2014 · c54d9ad · c54d9ad
1 parent ad8e127
commit c54d9ad
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diff --git a/Documentation/devicetree/bindings/extcon/extcon-fsa9480.txt b/Documentation/devicetree/bindings/extcon/extcon-fsa9480.txt
@@ -0,0 +1,21 @@
+FAIRCHILD SEMICONDUCTOR FSA9480 MICROUSB SWITCH
+
+The FSA9480 is a USB port accessory detector and switch. The FSA9480 is fully
+controlled using I2C and enables USB data, stereo and mono audio, video,
+microphone, and UART data to use a common connector port.
+
+Required properties:
+ - compatible : Must be "fcs,fsa9480"
+ - reg : Specifies i2c slave address. Must be 0x25.
+ - interrupt-parent : Phandle to interrupt controller to which interrupt
+   signal of the chip is connected.
+ - interrupts : Should contain one entry specifying interrupt signal of
+   interrupt parent to which interrupt pin of the chip is connected.
+
+ Example:
+	musb@25 {
+		compatible = "fcs,fsa9480";
+		reg = <0x25>;
+		interrupt-parent = <&gph2>;
+		interrupts = <7 0>;
+	};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -51,6 +51,7 @@ est	ESTeem Wireless Modems
 eukrea  Eukréa Electromatique
 everest	Everest Semiconductor Co. Ltd.
 excito	Excito
+fcs	Fairchild Semiconductor
 fsl	Freescale Semiconductor
 GEFanuc	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
 gef	GE Fanuc Intelligent Platforms Embedded Systems, Inc.

diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
@@ -45,6 +45,13 @@ config EXTCON_MAX14577
 	  Maxim MAX14577/77836. The MAX14577/77836 MUIC is a USB port accessory
 	  detector and switch.
 
+config EXTCON_FSA9480
+	tristate "FSA9480 EXTCON Support"
+	depends on INPUT
+	help
+	  If you say yes here you get support for the Fairchild Semiconductor
+	  FSA9480 microUSB switch and accessory detector chip.
+
 config EXTCON_MAX77693
 	tristate "MAX77693 EXTCON Support"
 	depends on MFD_MAX77693 && INPUT

diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile
@@ -5,6 +5,7 @@
 obj-$(CONFIG_EXTCON)		+= extcon-class.o
 obj-$(CONFIG_EXTCON_ADC_JACK)	+= extcon-adc-jack.o
 obj-$(CONFIG_EXTCON_ARIZONA)	+= extcon-arizona.o
+obj-$(CONFIG_EXTCON_FSA9480)	+= extcon-fsa9480.o
 obj-$(CONFIG_EXTCON_GPIO)	+= extcon-gpio.o
 obj-$(CONFIG_EXTCON_MAX14577)	+= extcon-max14577.o
 obj-$(CONFIG_EXTCON_MAX77693)	+= extcon-max77693.o