From: Freeman Liu <freeman.liu@unisoc.com>
Date: Mon, 23 Mar 2020 15:00:03 +0000 (+0000)
Subject: nvmem: sprd: Fix the block lock operation
X-Git-Tag: v5.15~4157^2~24
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c66ebde4d988b592e8f0008e04c47cc4950a49d3;p=platform%2Fkernel%2Flinux-starfive.git

nvmem: sprd: Fix the block lock operation

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")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Freeman Liu <freeman.liu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200323150007.7487-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/nvmem/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c
index 2f1e0fb..7a189ef5 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);
 	}