Commit b559c3e8 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Simon Horman
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gpio-rcar: Reference core gpio documentation in the DT bindings 



Replaced the detailed gpio-ranges documentation with a reference to the
code gpio DT bindings, and mention the gpio flags symbolic names.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 159f8a02

Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt

+6 −12
Original line number Diff line number Diff line
@@ -16,18 +16,12 @@ Required Properties: 


  - gpio-controller: Marks the device node as a gpio controller.

  - #gpio-cells: Should be 2. The first cell is the GPIO number and the second

    cell is used to specify optional parameters as bit flags. Only the GPIO

    active low flag (bit 0) is currently supported.

  - gpio-ranges: Range of pins managed by the GPIO controller as a 4-cells

    tuple using the following syntax.



    <[phandle of the pin controller node]

     0

     [index of the first pin]

     [number of pins]>



Please refer to gpio.txt in this directory for details of the common GPIO

bindings used by client devices.

    cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the

    GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.

  - gpio-ranges: Range of pins managed by the GPIO controller.



Please refer to gpio.txt in this directory for details of gpio-ranges property

and the common GPIO bindings used by client devices.



Example: R8A7779 (R-Car H1) GPIO controller nodes

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