diff options
| author |   Laxman Dewangan <ldewangan@nvidia.com> | 2016-05-13 10:49:12 +0530 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2016-06-07 09:35:15 +0200 |
| commit | f72677939cf582118bd645c5015605577db74b25 (patch) | |
| tree | 745020b5bedce4ae780a2cbfa110f3c7cc9f873a /Documentation | |
| parent | Linux 4.7-rc2 (diff) | |
| download | linux-dev-f72677939cf582118bd645c5015605577db74b25.tar.xz linux-dev-f72677939cf582118bd645c5015605577db74b25.zip | |
gpio: add DT binding doc for gpio of PMIC max77620/max20024
Maxim Semiconductor's PMIC MAX77620/MAX20024 has 8 GPIO pins
which act as GPIO as well as special function mode.
Add DT binding document to support these pins in GPIO
mode via GPIO framework.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-max77620.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-max77620.txt b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt new file mode 100644 index 000000000000..410e716fd3d2 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt @@ -0,0 +1,25 @@ +GPIO driver for MAX77620 Power management IC from Maxim Semiconductor. + +Device has 8 GPIO pins which can be configured as GPIO as well as the +special IO functions. + +Required properties: +------------------- +- 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 +For more details, please refer generic GPIO DT binding document +<devicetree/bindings/gpio/gpio.txt>. + +Example: +-------- +#include <dt-bindings/mfd/max77620.h> +... +max77620@3c { + compatible = "maxim,max77620"; + + gpio-controller; + #gpio-cells = <2>; +}; |