[PATCH] spi: sprd: switch the sequence of setting WDG_LOAD_LOW and _HIGH

From: Chunyan Zhang
Date: Tue Jun 02 2020 - 04:24:27 EST


From: Lingling Xu <ling_ling.xu@xxxxxxxxxx>

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 <ling_ling.xu@xxxxxxxxxx>
Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>
---
drivers/spi/spi-sprd-adi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c
index 87dadb6b8ebf..8e84e25a8f7a 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);
--
2.20.1