[RFC PATCH 10/10] documentation/dt: Add OMAP GPIO properties
b-cousson at ti.com
Thu Sep 8 21:51:46 EDT 2011
On 9/8/2011 8:18 PM, Grant Likely wrote:
> On Wed, Aug 24, 2011 at 03:09:16PM +0200, Benoit Cousson wrote:
>> Add documentation for GPIO properties specific to OMAP.
>> Signed-off-by: Benoit Cousson<b-cousson at ti.com>
>> Cc: Randy Dunlap<rdunlap at xenotime.net>
>> .../devicetree/bindings/gpio/gpio-omap.txt | 33 ++++++++++++++++++++
>> 1 files changed, 33 insertions(+), 0 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/gpio/gpio-omap.txt
>> diff --git a/Documentation/devicetree/bindings/gpio/gpio-omap.txt b/Documentation/devicetree/bindings/gpio/gpio-omap.txt
>> new file mode 100644
>> index 0000000..692b1c7
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/gpio/gpio-omap.txt
>> @@ -0,0 +1,33 @@
>> +OMAP GPIO controller
>> +Required properties:
>> +- compatible:
>> + - "ti,omap2-gpio" for OMAP2 and OMAP3 controllers
>> + - "ti,omap4-gpio" for OMAP4 controller
>> +- #gpio-cells : Should be two.
>> + - first cell is the pin number
>> + - second cell is used to specify optional parameters (unused)
>> +- gpio-controller : Marks the device node as a GPIO controller.
>> +OMAP specific properties:
>> +- hwmods: Name of the hwmod associated to the GPIO
>> +- id: 32 bits to identify the id (1 based index)
> id should not be necessary. Linux GPIO numbers are to be dynamically
> assigned when using DT.
>> +- bank_width: number of pin supported by the controller (16 or 32)
>> +- debounce: set if the controller support the debouce funtionnality
>> +- bank_count: number of controller support by the SoC. This is a temporary
>> + hack until the bank_count is removed from the driver.
> All these properties should be prefixed with "ti,".
> Use '-' instead of '_' in property names
I'll fix that.
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