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Date: Tue, 7 Apr 2020 12:21:59 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Freeman Liu <freeman.liu@...soc.com>, Baolin Wang <baolin.wang7@...il.com>, Srinivas Kandagatla <srinivas.kandagatla@...aro.org> Subject: [PATCH 5.5 28/46] nvmem: sprd: Fix the block lock operation From: Freeman Liu <freeman.liu@...soc.com> commit c66ebde4d988b592e8f0008e04c47cc4950a49d3 upstream. 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@...r.kernel.org> 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> Link: https://lore.kernel.org/r/20200323150007.7487-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/nvmem/sprd-efuse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/nvmem/sprd-efuse.c +++ b/drivers/nvmem/sprd-efuse.c @@ -239,7 +239,7 @@ static int sprd_efuse_raw_prog(struct sp 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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