diff options
| author | Alexander Shiyan <shc_work@mail.ru> | 2014-03-11 21:55:14 +0400 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-03-18 09:28:31 +0100 |
| commit | 6a8a0c1d87377c6ce97de2fedc0762c2fa8233ac (patch) | |
| tree | f587b88cc527e7902dbf07bbc5b21310cce1ef32 /Documentation | |
| parent | 193385305b71b329b8fbec2c0465d4afd3f946b8 (diff) | |
gpio: Driver for SYSCON-based GPIOs
SYSCON driver was designed for using memory areas (registers)
that are used in several subsystems. There are systems (CPUs)
which use bits in one register for various purposes and thus
should be handled by various kernel subsystems. This driver
allows you to use the individual SYSCON bits as GPIOs.
ARM CLPS711X SYSFLG1 input lines has been added as first user
of this driver.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt b/Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt new file mode 100644 index 000000000000..94ae9f82dcf8 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt @@ -0,0 +1,17 @@ +* ARM Cirrus Logic CLPS711X SYSFLG1 MCTRL GPIOs + +Required properties: +- compatible: Should contain "cirrus,clps711x-mctrl-gpio". +- gpio-controller: Marks the device node as a gpio controller. +- #gpio-cells: Should be two. The first cell is the pin number and + the second cell is used to specify the gpio polarity: + 0 = Active high, + 1 = Active low. + +Example: + sysgpio: sysgpio { + compatible = "cirrus,ep7312-mctrl-gpio", + "cirrus,clps711x-mctrl-gpio"; + gpio-controller; + #gpio-cells = <2>; + }; |