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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/devicetree/bindings/input/samsung-keypad.txt | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/input/samsung-keypad.txt')
-rw-r--r-- | kernel/Documentation/devicetree/bindings/input/samsung-keypad.txt | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/input/samsung-keypad.txt b/kernel/Documentation/devicetree/bindings/input/samsung-keypad.txt new file mode 100644 index 000000000..942d071ba --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/input/samsung-keypad.txt @@ -0,0 +1,74 @@ +* Samsung's Keypad Controller device tree bindings + +Samsung's Keypad controller is used to interface a SoC with a matrix-type +keypad device. The keypad controller supports multiple row and column lines. +A key can be placed at each intersection of a unique row and a unique column. +The keypad controller can sense a key-press and key-release and report the +event using a interrupt to the cpu. + +Required SoC Specific Properties: +- compatible: should be one of the following + - "samsung,s3c6410-keypad": For controllers compatible with s3c6410 keypad + controller. + - "samsung,s5pv210-keypad": For controllers compatible with s5pv210 keypad + controller. + +- reg: physical base address of the controller and length of memory mapped + region. + +- interrupts: The interrupt number to the cpu. + +Required Board Specific Properties: +- samsung,keypad-num-rows: Number of row lines connected to the keypad + controller. + +- samsung,keypad-num-columns: Number of column lines connected to the + keypad controller. + +- Keys represented as child nodes: Each key connected to the keypad + controller is represented as a child node to the keypad controller + device node and should include the following properties. + - keypad,row: the row number to which the key is connected. + - keypad,column: the column number to which the key is connected. + - linux,code: the key-code to be reported when the key is pressed + and released. + +- pinctrl-0: Should specify pin control groups used for this controller. +- pinctrl-names: Should contain only one value - "default". + +Optional Properties specific to linux: +- linux,keypad-no-autorepeat: do no enable autorepeat feature. +- linux,keypad-wakeup: use any event on keypad as wakeup event. + + +Example: + keypad@100A0000 { + compatible = "samsung,s5pv210-keypad"; + reg = <0x100A0000 0x100>; + interrupts = <173>; + samsung,keypad-num-rows = <2>; + samsung,keypad-num-columns = <8>; + linux,input-no-autorepeat; + linux,input-wakeup; + + pinctrl-names = "default"; + pinctrl-0 = <&keypad_rows &keypad_columns>; + + key_1 { + keypad,row = <0>; + keypad,column = <3>; + linux,code = <2>; + }; + + key_2 { + keypad,row = <0>; + keypad,column = <4>; + linux,code = <3>; + }; + + key_3 { + keypad,row = <0>; + keypad,column = <5>; + linux,code = <4>; + }; + }; |