[v2,4/4] gpio: dt-bindings: Update documentation with ast2600 controllers
diff mbox series

Message ID 20190905011800.16156-1-rashmica.g@gmail.com
State New
Headers show
Series
  • Add ast2600 gpio support
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Commit Message

Rashmica Gupta Sept. 5, 2019, 1:18 a.m. UTC
The ast2600 is a new generation of SoC from ASPEED. Similarly to the
ast2400 and ast2500, it has a GPIO controller for it's 3.6V GPIO pins.
Additionally, it has a GPIO controller for 36 1.8V GPIO pins. These
voltages are fixed and cannot be configured via pinconf, so we have two
separate drivers for them.

Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
---
 Documentation/devicetree/bindings/gpio/gpio-aspeed.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Andrew Jeffery Sept. 5, 2019, 3:59 a.m. UTC | #1
On Thu, 5 Sep 2019, at 10:48, Rashmica Gupta wrote:
> The ast2600 is a new generation of SoC from ASPEED. Similarly to the
> ast2400 and ast2500, it has a GPIO controller for it's 3.6V GPIO pins.
> Additionally, it has a GPIO controller for 36 1.8V GPIO pins. These
> voltages are fixed and cannot be configured via pinconf, so we have two
> separate drivers for them.

See 3/4 for discussion about the commit message.

> 
> Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
> ---
>  Documentation/devicetree/bindings/gpio/gpio-aspeed.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt 
> b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
> index 7e9b586770b0..cd388797e07c 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",
> +					  "aspeed,ast2600-gpio", or "aspeed,ast2600-1-8v-gpio"

See the discussion on patch 3/4 about how we might eliminate the
aspeed,ast2600-1-8v-gpio compatible string.

Also, this patch should be the first in the series and start the subject with
"dt-bindings: gpio: aspeed: ..."

Cheers,

Andrew

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
index 7e9b586770b0..cd388797e07c 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",
+					  "aspeed,ast2600-gpio", or "aspeed,ast2600-1-8v-gpio"
 
 - #gpio-cells 		: Should be two
 			  - First cell is the GPIO line number