linux-kernel - [PATCH 1/3] nvmem: sprd: Fix the block lock operation

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Message-Id: <03c391fc1bbc3575ed47d5d249106de9e0b7d508.1584072223.git.baolin.wang7@gmail.com>
Date:   Fri, 13 Mar 2020 12:07:07 +0800
From:   Baolin Wang <baolin.wang7@...il.com>
To:     srinivas.kandagatla@...aro.org
Cc:     orsonzhai@...il.com, zhang.lyra@...il.com, freeman.liu@...soc.com,
        baolin.wang7@...il.com, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] nvmem: sprd: Fix the block lock operation

From: Freeman Liu <freeman.liu@...soc.com>

According to the Spreadtrum eFuse specification, we should write 0 to
the block to trigger the lock operation.

Fixes: 096030e7f449 ("nvmem: sprd: Add Spreadtrum SoCs eFuse support")
Signed-off-by: Freeman Liu <freeman.liu@...soc.com>
Signed-off-by: Baolin Wang <baolin.wang7@...il.com>
---
 drivers/nvmem/sprd-efuse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvmem/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c
index 2f1e0fb..7a189ef 100644
--- a/drivers/nvmem/sprd-efuse.c
+++ b/drivers/nvmem/sprd-efuse.c
@@ -239,7 +239,7 @@ static int sprd_efuse_raw_prog(struct sprd_efuse *efuse, u32 blk, bool doub,
 		ret = -EBUSY;
 	} else {
 		sprd_efuse_set_prog_lock(efuse, lock);
-		writel(*data, efuse->base + SPRD_EFUSE_MEM(blk));
+		writel(0, efuse->base + SPRD_EFUSE_MEM(blk));
 		sprd_efuse_set_prog_lock(efuse, false);
 	}
 
-- 
1.9.1