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SubjectRe: [PATCH 2/7] watchdog: sunxi: allow setting timeout in devicetree
On Fri, Feb 09, 2018 at 08:27:19PM +0100, Marcus Folkesson wrote:
> watchdog_init_timeout() will allways pick timeout_param since it
> defaults to a valid timeout.
>
> By following best practice described in
> Documentation/watchdog/watchdog-kernel-api.txt, it also
> let us to set timout-sec property in devicetree.
>
> Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>

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

> ---
> Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt | 4 ++++
> drivers/watchdog/sunxi_wdt.c | 2 +-
> 2 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
> index 62dd5baad70e..49900e72f6b1 100644
> --- a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
> +++ b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
> @@ -6,9 +6,13 @@ Required properties:
> "allwinner,sun6i-a31-wdt"
> - reg : Specifies base physical address and size of the registers.
>
> +Optional properties:
> +- timeout-sec : Contains the watchdog timeout in seconds
> +
> Example:
>
> wdt: watchdog@1c20c90 {
> compatible = "allwinner,sun4i-a10-wdt";
> reg = <0x01c20c90 0x10>;
> + timeout-sec = <10>;
> };
> diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c
> index 9728fa32c357..55f166bec0ca 100644
> --- a/drivers/watchdog/sunxi_wdt.c
> +++ b/drivers/watchdog/sunxi_wdt.c
> @@ -39,7 +39,7 @@
> #define DRV_VERSION "1.0"
>
> static bool nowayout = WATCHDOG_NOWAYOUT;
> -static unsigned int timeout = WDT_MAX_TIMEOUT;
> +static unsigned int timeout;
>
> /*
> * This structure stores the register offsets for different variants
> --
> 2.15.1
>

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