Message ID | 7b04711127434555e3a1a86bc6be99860cd86668.1572257085.git.baolin.wang@linaro.org |
---|---|
State | New |
Headers | show |
Series | [1/2] spi: sprd: adi: Add missing lock protection when rebooting | expand |
diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c index 9a05128..9613cfe 100644 --- a/drivers/spi/spi-sprd-adi.c +++ b/drivers/spi/spi-sprd-adi.c @@ -393,6 +393,9 @@ static int sprd_adi_restart_handler(struct notifier_block *this, val |= BIT_WDG_RUN | BIT_WDG_RST; sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_CTRL, val); + /* Lock the watchdog */ + sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOCK, ~WDG_UNLOCK_KEY); + mdelay(1000); dev_emerg(sadi->dev, "Unable to restart system\n");