linux-kernel - Re: [PATCH v9 1/3] dt: bindings: add documentation for zx2967 family watchdog controller

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Date:   Sat, 4 Feb 2017 16:04:26 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Baoyou Xie <baoyou.xie@...aro.org>, jun.nie@...aro.org,
        wim@...ana.be, robh+dt@...nel.org, mark.rutland@....com,
        mathieu.poirier@...aro.org
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, shawnguo@...nel.org,
        xie.baoyou@....com.cn, chen.chaokai@....com.cn,
        wang.qiang01@....com.cn
Subject: Re: [PATCH v9 1/3] dt: bindings: add documentation for zx2967 family
 watchdog controller

On 02/03/2017 05:34 PM, Baoyou Xie wrote:
> This patch adds dt-binding documentation for zx2967 family
> watchdog controller.
>
> Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
> Acked-by: Rob Herring <robh@...nel.org>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  .../bindings/watchdog/zte,zx2967-wdt.txt           | 32 ++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/zte,zx2967-wdt.txt
>
> diff --git a/Documentation/devicetree/bindings/watchdog/zte,zx2967-wdt.txt b/Documentation/devicetree/bindings/watchdog/zte,zx2967-wdt.txt
> new file mode 100644
> index 0000000..06ce677
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/zte,zx2967-wdt.txt
> @@ -0,0 +1,32 @@
> +ZTE zx2967 Watchdog timer
> +
> +Required properties:
> +
> +- compatible : should be one of the following.
> +       * zte,zx296718-wdt
> +- reg : Specifies base physical address and size of the registers.
> +- clocks : Pairs of phandle and specifier referencing the controller's clocks.
> +- resets : Reference to the reset controller controlling the watchdog
> +           controller.
> +
> +Optional properties:
> +
> +- timeout-sec : Contains the watchdog timeout in seconds.
> +- zte,wdt-reset-sysctrl : Directs how to reset system by the watchdog.
> +	if we don't want to restart system when watchdog been triggered,
> +	it's not required, vice versa.
> +	It should include following fields.
> +	  * phandle of aon-sysctrl.
> +	  * offset of register that be written, should be 0xb0.
> +	  * configure value that be written to aon-sysctrl.
> +	  * bit mask, corresponding bits will be affected.
> +
> +Example:
> +
> +wdt: watchdog@...5000 {
> +	compatible = "zte,zx296718-wdt";
> +	reg = <0x1465000 0x1000>;
> +	clocks = <&topcrm WDT_WCLK>;
> +	resets = <&toprst 35>;
> +	zte,wdt-reset-sysctrl = <&aon_sysctrl 0xb0 1 0x115>;
> +};
>