[U-Boot] [PATCH] watchdog: omap_wdt: Fix WDT target reset when booted from emmc

[Sam Protsenko]

On Mon, Sep 16, 2019 at 11:09 AM <sunil.m at techveda.org> wrote:
>
> From: Suniel Mahesh <sunil.m at techveda.org>
>
> AM335X based beaglebone black target gets reset by DM converted watchdog
> if booted from emmc around 60sec. Fixed this by moving driver's private struct
> variable initialization at different places in the driver to driver's probe.
> Tested on Beaglebone Black.
>
> Cc: Grygorii Strashko <grygorii.strashko at ti.com>
> Fixes: 7659ea32 ("watchdog: omap_wdt: Convert watchdog driver to use DT and DM")
> Reported-by: Sam Protsenko <semen.protsenko at linaro.org>
> Signed-off-by: Suniel Mahesh <sunil.m at techveda.org>
> ---

Reviewed-by: Sam Protsenko <semen.protsenko at linaro.org>

>  drivers/watchdog/omap_wdt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
> index d5857be..284cfbb 100644
> --- a/drivers/watchdog/omap_wdt.c
> +++ b/drivers/watchdog/omap_wdt.c
> @@ -150,7 +150,6 @@ static int omap3_wdt_reset(struct udevice *dev)
>  {
>         struct omap3_wdt_priv *priv = dev_get_priv(dev);
>
> -       priv->wdt_trgr_pattern = 0x1234;
>  /*
>   * Somebody just triggered watchdog reset and write to WTGR register
>   * is in progress. It is resetting right now, no need to trigger it
> @@ -231,6 +230,7 @@ static int omap3_wdt_probe(struct udevice *dev)
>         if (!priv->regs)
>                 return -EINVAL;
>
> +       priv->wdt_trgr_pattern = 0x1234;
>         debug("%s: Probing wdt%u\n", __func__, dev->seq);
>         return 0;
>  }
> --
> 2.7.4
>