From: Lingling Xu Date: Tue, 2 Jun 2020 08:24:15 +0000 (+0800) Subject: spi: sprd: switch the sequence of setting WDG_LOAD_LOW and _HIGH X-Git-Tag: v5.15~3374^2~17 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8bdd79dae1ff5397351b95e249abcae126572617;p=platform%2Fkernel%2Flinux-starfive.git spi: sprd: switch the sequence of setting WDG_LOAD_LOW and _HIGH The watchdog counter consists of WDG_LOAD_LOW and WDG_LOAD_HIGH, which would be loaded to watchdog counter once writing WDG_LOAD_LOW. Fixes: ac1775012058 ("spi: sprd: Add the support of restarting the system") Signed-off-by: Lingling Xu Signed-off-by: Chunyan Zhang Link: https://lore.kernel.org/r/20200602082415.5848-1-zhang.lyra@gmail.com Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c index 88e6543..bd23c46 100644 --- a/drivers/spi/spi-sprd-adi.c +++ b/drivers/spi/spi-sprd-adi.c @@ -389,9 +389,9 @@ static int sprd_adi_restart_handler(struct notifier_block *this, sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_CTRL, val); /* Load the watchdog timeout value, 50ms is always enough. */ + sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_HIGH, 0); sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_LOW, WDG_LOAD_VAL & WDG_LOAD_MASK); - sprd_adi_write(sadi, sadi->slave_pbase + REG_WDG_LOAD_HIGH, 0); /* Start the watchdog to reset system */ sprd_adi_read(sadi, sadi->slave_pbase + REG_WDG_CTRL, &val);