diff options
| author | Rashmica Gupta <rashmica.g@gmail.com> | 2019-09-06 16:25:47 +1000 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-09-11 11:03:06 +0100 |
| commit | da04c425e9f738d7d143f509d519e1eaa4b5c2d6 (patch) | |
| tree | 49afbbade62bb357b8c9b05a38a061feef0228ee /Documentation/devicetree/bindings/gpio | |
| parent | 5fbe5b5883f847363ff1b7280e8b1d2980526b8e (diff) | |
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: Rashmica Gupta <rashmica.g@gmail.com>
Link: https://lore.kernel.org/r/20190906062547.13264-1-rashmica.g@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/gpio')
| -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: |