[PATCH] watchdog: meson_gxbb_wdt: add timeout parameter
Guenter Roeck
linux at roeck-us.net
Thu Jul 29 07:14:35 PDT 2021
On 7/29/21 12:23 AM, Artem Lapkin wrote:
> Add timeout module parameter
>
> Signed-off-by: Artem Lapkin <art at khadas.com>
> ---
> drivers/watchdog/meson_gxbb_wdt.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/watchdog/meson_gxbb_wdt.c b/drivers/watchdog/meson_gxbb_wdt.c
> index 5aebc3a09..3f3866878 100644
> --- a/drivers/watchdog/meson_gxbb_wdt.c
> +++ b/drivers/watchdog/meson_gxbb_wdt.c
> @@ -34,6 +34,11 @@ module_param(nowayout, bool, 0);
> MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started default="
> __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
>
> +static unsigned int timeout = DEFAULT_TIMEOUT;
DEFAULT_TIMEOUT is already set below. The default for the module parameter
should be 0. This way the watchdog core takes the value from devicetree
unless a module parameter is provided.
Guenter
> +module_param(timeout, uint, 0);
> +MODULE_PARM_DESC(timeout, "Watchdog heartbeat in seconds="
> + __MODULE_STRING(DEFAULT_TIMEOUT) ")");
> +
> struct meson_gxbb_wdt {
> void __iomem *reg_base;
> struct watchdog_device wdt_dev;
> @@ -180,6 +185,7 @@ static int meson_gxbb_wdt_probe(struct platform_device *pdev)
> data->wdt_dev.max_hw_heartbeat_ms = GXBB_WDT_TCNT_SETUP_MASK;
> data->wdt_dev.min_timeout = 1;
> data->wdt_dev.timeout = DEFAULT_TIMEOUT;
> + watchdog_init_timeout(&data->wdt_dev, timeout, dev);
> watchdog_set_nowayout(&data->wdt_dev, nowayout);
> watchdog_set_drvdata(&data->wdt_dev, data);
>
>
More information about the linux-amlogic
mailing list