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2020-07-29nvmem: sc27xx: add sc2730 efuse supportFreeman Liu1-3/+24
Add support to the new efuse IP which is integrated in the SC2730 which includes multiple blocks in a single chip. Signed-off-by: Freeman Liu <freeman.liu@unisoc.com> Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com> Reviewed-by: Baolin Wang <baolin.wang7@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20200722100705.7772-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-05nvmem: sc27xx: Change to use devm_hwspin_lock_request_specific() to request ↵Baolin Wang1-12/+1
one hwlock Change to use devm_hwspin_lock_request_specific() to help to simplify the cleanup code for drivers requesting one hwlock. Thus we can remove the redundant sc27xx_efuse_remove() and platform_set_drvdata(). Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20191029114240.14905-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-31nvmem: sc27xx: Convert nvmem offset to block indexFreeman Liu1-4/+8
The Spreadtrum SC27XX efuse data are organized by blocks and each block contains 2 bytes data. Moreover the nvmem core always pass the offset in byte to the controller, so we should change the offset in byte to the correct block index and block offset to read the data. Signed-off-by: Freeman Liu <freeman.liu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-15nvmem: Add Spreadtrum SC27XX efuse supportFreeman Liu1-0/+264
This patch add the efuse driver which is embeded in Spreadtrum SC27XX series PMICs. The sc27xx efuse contains 32 blocks and each block's data width is 16 bits. Signed-off-by: Freeman Liu <freeman.liu@spreadtrum.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>