Commit da04c425 authored by Rashmica Gupta's avatar Rashmica Gupta Committed by Linus Walleij
Browse files

gpio: aspeed: Update documentation with ast2600 controllers 



The ast2600 is a new generation of SoC from ASPEED. Similarly to the
ast2400 and ast2500, it has a GPIO controller for it's 3.3V GPIO pins.
Additionally, it has a GPIO controller for 36 1.8V GPIO pins.  We use
the ngpio property to differentiate between these controllers.

Signed-off-by: default avatarRashmica Gupta <rashmica.g@gmail.com>
Link: https://lore.kernel.org/r/20190906062547.13264-1-rashmica.g@gmail.com


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 5fbe5b58

Documentation/devicetree/bindings/gpio/gpio-aspeed.txt

+5 −2
Original line number Diff line number Diff line
@@ -2,7 +2,8 @@ Aspeed GPIO controller Device Tree Bindings 
-------------------------------------------



Required properties:

- compatible		: Either "aspeed,ast2400-gpio" or "aspeed,ast2500-gpio"

- compatible		: Either "aspeed,ast2400-gpio", "aspeed,ast2500-gpio",

					or "aspeed,ast2600-gpio".



- #gpio-cells 		: Should be two

			  - First cell is the GPIO line number
@@ -18,6 +19,8 @@ Required properties: 
Optional properties:



- clocks		: A phandle to the clock to use for debounce timings

- ngpios		: Number of GPIOs controlled by this controller. Should	be set

				  when there are multiple GPIO controllers on a SoC (ast2600).



The gpio and interrupt properties are further described in their respective

bindings documentation: