Commit c66ebde4 authored Mar 23, 2020 by Freeman Liu Committed by Greg Kroah-Hartman Mar 23, 2020

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: 096030e7 ("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>

parent 33e12f6e

drivers/nvmem/sprd-efuse.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}

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