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| author | Rashmica Gupta <rashmica.g@gmail.com> | 2019-09-06 09:25:47 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2019-09-10 20:29:57 +0300 |
| commit | 7e3db8cabbecf541bae76ddebe90c1ba869b5b10 (patch) | |
| tree | 566aed93c0517af7b63926d7543a23e3449ae56a | |
| parent | 4fc18278f05742ec77626fecee9f0401ed69392c (diff) | |
| download | linux-7e3db8cabbecf541bae76ddebe90c1ba869b5b10.tar.xz | |
dt-bindings: 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.
OpenBMC-Staging-Count: 1
Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-aspeed.txt | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt index 7e9b586770b0..b2033fc3a71a 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt @@ -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 @@ -17,7 +18,9 @@ Required properties: Optional properties: -- clocks : A phandle to the clock to use for debounce timings +- 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: |