Messages in this thread | | | From | Jerome Brunet <> | Subject | [PATCH v2 0/3] nvmem: meson-efuse: add write support | Date | Mon, 23 Apr 2018 14:41:46 +0200 |
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This changeset adds write support to meson efuse driver. The first patch just changes the way the nvmem data are allocated w/o any functional changes. The second patches actually adds write support.
The memory being an OTP, it is safer if it remains read-only by default, which is why I also submitted this DT patch [0]. It has now been merged by Kevin.
If a user knows what he is doing, it should be easy to remove the read-only property from the board DT. This can be done in u-boot, before starting linux:
> fdt rm /efuse read-only
Tested on the gxl libretech-cc
Changes since v1 [1]: - Remove un-necessary code in callbacks - Rebase on v4.17-rc1
[0]: https://lkml.kernel.org/r/20180316145021.8517-1-jbrunet@baylibre.com [1]: https://lkml.kernel.org/r/20180316150113.9779-1-jbrunet@baylibre.com
Jerome Brunet (3): nvmem: meson-efuse: remove econfig global nvmem: meson-efuse: simplify read callback nvmem: meson-efuse: add write support
drivers/nvmem/meson-efuse.c | 41 ++++++++++++++++++++++------------------- 1 file changed, 22 insertions(+), 19 deletions(-)
-- 2.14.3
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