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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: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Laurent Pinchart 2013-06-18 12:29:48 +02:00 committed by Simon Horman
parent 159f8a0209
commit b559c3e8e7
1 changed files with 5 additions and 11 deletions
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16
Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
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@ -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.
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.
<[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.
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