[PATCH 5.4 043/144] spi: sprd: Fix the wrong WDG_LOAD_VAL

From: Greg Kroah-Hartman
Date: Mon Sep 13 2021 - 09:19:55 EST


From: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>

[ Upstream commit 245ca2cc212bb2a078332ec99afbfbb202f44c2d ]

Use 50ms as default timeout value and the time clock is 32768HZ.
The original value of WDG_LOAD_VAL is not correct, so this patch
fixes it.

Fixes: ac1775012058 ("spi: sprd: Add the support of restarting the system")
Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210826091549.2138125-2-zhang.lyra@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@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 09f983524d51..e804a3854c35 100644
--- a/drivers/spi/spi-sprd-adi.c
+++ b/drivers/spi/spi-sprd-adi.c
@@ -102,7 +102,7 @@
#define HWRST_STATUS_WATCHDOG 0xf0

/* Use default timeout 50 ms that converts to watchdog values */
-#define WDG_LOAD_VAL ((50 * 1000) / 32768)
+#define WDG_LOAD_VAL ((50 * 32768) / 1000)
#define WDG_LOAD_MASK GENMASK(15, 0)
#define WDG_UNLOCK_KEY 0xe551

--
2.30.2