linux-kernel - [PATCH V3 1/4] spi: sprd: Fix the wrong WDG_LOAD

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Message-Id: <20210826091549.2138125-2-zhang.lyra@gmail.com>
Date:   Thu, 26 Aug 2021 17:15:46 +0800
From:   Chunyan Zhang <zhang.lyra@...il.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     linux-spi@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        devicetree@...r.kernel.org, Baolin Wang <baolin.wang7@...il.com>,
        Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Chunyan Zhang <chunyan.zhang@...soc.com>,
        Luting Guo <luting.guo@...soc.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH V3 1/4] spi: sprd: Fix the wrong WDG_LOAD_VAL

From: Chunyan Zhang <chunyan.zhang@...soc.com>

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@...soc.com>
---
 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 07f11b17bf20..d392dc6db927 100644
--- 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
 
-- 
2.25.1