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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-01 13:51:59 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-01 13:51:59 +0200
commit86d39839bc6bccc9b6b89de8c9c38beb9709f559 (patch)
tree4b3afdf6e5b497d31b76e3bc8ba747d637b1a63f /Documentation/devicetree
parent911a88829725572820dad9a168e735c606a2fdcb (diff)
parent66bee35f29683fc4a9a530a1c56a0ec45e3f7d72 (diff)
downloadop-kernel-dev-86d39839bc6bccc9b6b89de8c9c38beb9709f559.zip
op-kernel-dev-86d39839bc6bccc9b6b89de8c9c38beb9709f559.tar.gz
Merge tag 'extcon-next-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes: Update extcon for v4.1 This patchset include two new extcon driver and fix minor issue of extcon driver. Detailed description for patchset: 1. new extcon-max77843.c and extcon-usb-gpio.c extcon driver - extcon-max77843.c driver support the MAXIM MAX77843 MUIC (Micor-USB Interface Controller) device which handles the various external connectors such as TA/USB /USB-HOST/JIG and so on. - extcon-usb-gpio.c driver support the USB and USB-HOST cable detection by using the GPIO pin which is connected to USB ID pin. This GPIO pin updates the USB cable states. 2. Rename the filename of extcon core driver and add missing locking mechanism - Rename the previous extcon-class driver.c as extcon.c because '-class' postfix is not necessary word. - extcon core driver (extcon.c) used the raw_notifier_chain. It must be protected by locking mechanism to avoid the list changing while extcon_update_state() is executed. 3. Fix minor issue of extcon drviers - Fix cable name by using the capital letter instead of small letter on extcon-max77693.c driver. - Clean-up code of extcon-arizona.c to detect headphone cable. - Fix the wrong return type and variable type on extcon-max77843.c. - Fix the checkpatch warning of all extcon drivers.
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt18
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
new file mode 100644
index 0000000..af0b903
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
@@ -0,0 +1,18 @@
+USB GPIO Extcon device
+
+This is a virtual device used to generate USB cable states from the USB ID pin
+connected to a GPIO pin.
+
+Required properties:
+- compatible: Should be "linux,extcon-usb-gpio"
+- id-gpio: gpio for USB ID pin. See gpio binding.
+
+Example: Examples of extcon-usb-gpio node in dra7-evm.dts as listed below:
+ extcon_usb1 {
+ compatible = "linux,extcon-usb-gpio";
+ id-gpio = <&gpio6 1 GPIO_ACTIVE_HIGH>;
+ }
+
+ &omap_dwc3_1 {
+ extcon = <&extcon_usb1>;
+ };
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