spi: sprd: Fix the wrong WDG_LOAD_VAL

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@unisoc.com>
Link: https://lore.kernel.org/r/20210826091549.2138125-2-zhang.lyra@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c
index 07f11b1..d392dc6 100644 (file)
--- a/drivers/spi/spi-sprd-adi.c
+++ b/drivers/spi/spi-sprd-adi.c
@@ -103,7 +103,7 @@
 #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