linux-kernel - Re: [PATCH v2 1/2] Documentation: dt: extcon: add optional debounce-timeout-ms attribute

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Date:   Thu, 19 Oct 2017 13:47:56 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     Raveendra Padasalagi <raveendra.padasalagi@...adcom.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     bcm-kernel-feedback-list@...adcom.com
Subject: Re: [PATCH v2 1/2] Documentation: dt: extcon: add optional
 debounce-timeout-ms attribute

On 2017년 10월 19일 12:25, Raveendra Padasalagi wrote:
> Add documentation on optional dt attribute "debounce-timeout-ms"
> in extcon node to capture user specified timeout value for id
> and vbus gpio detection.
> 
> Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@...adcom.com>
> Reviewed-by: Ray Jui <ray.jui@...adcom.com>
> Reviewed-by: Srinath Mannam <srinath.mannam@...adcom.com>
> ---
> 
> Changes in v2:
>  Rename debounce-timeout-ms to input-debounce
> 
>  Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
> index dfc14f7..d115900 100644
> --- a/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
> +++ b/Documentation/devicetree/bindings/extcon/extcon-usb-gpio.txt
> @@ -10,6 +10,9 @@ Either one of id-gpio or vbus-gpio must be present. Both can be present as well.
>  - id-gpio: gpio for USB ID pin. See gpio binding.
>  - vbus-gpio: gpio for USB VBUS pin.
>  
> +Optional properties:
> +- input-debounce: debounce timeout value for id and vbus gpio in microseconds.

The pinctrl-bindings.txt[1] specify the unit of 'input-debounce'.
The unit is usec instead of 'microsecond'. You need to modify the description of unit.
[1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt

> +
>  Example: Examples of extcon-usb-gpio node in dra7-evm.dts as listed below:
>  	extcon_usb1 {
>  		compatible = "linux,extcon-usb-gpio";
> 


-- 
Best Regards,
Chanwoo Choi
Samsung Electronics