Messages in this thread Patch in this message | | | From | Laxman Dewangan <> | Subject | [PATCH V12 1/2] gpio: add DT binding doc for gpio of PMIC max77620/max20024 | Date | Fri, 13 May 2016 10:49:12 +0530 |
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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> Acked-by: Linus Walleij <linus.walleij@linaro.org>
--- This as part of the max77620 series and mfd patch are already applied. This can go in subsystem branch.
Changes from V4: - Separate out from gpio driver
Changes from V5/V6/V7: - None
Changes from V8: - Collected Linus ack.
Changes from V9i/V10: None --- .../devicetree/bindings/gpio/gpio-max77620.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-max77620.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-max77620.txt b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt new file mode 100644 index 0000000..410e716 --- /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>; +}; -- 2.1.4
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