linux-kernel - [PATCH 1/5] nvmem: sprd: Fix the block lock operation

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Date:   Mon, 23 Mar 2020 15:00:03 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, Freeman Liu <freeman.liu@...soc.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 1/5] 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>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 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 2f1e0fbd1901..7a189ef52333 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);
 	}
 
-- 
2.21.0