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| author | Jerome Brunet <jbrunet@baylibre.com> | 2018-05-11 13:07:01 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-14 16:20:48 +0200 |
| commit | e55077307d6f7ce86f9a468408fa5613c4a5cb5d (patch) | |
| tree | bc2120a0b77b95933b065613b0d743a24cd9d126 /drivers/nvmem | |
| parent | nvmem: meson-efuse: simplify read callback (diff) | |
| download | linux-e55077307d6f7ce86f9a468408fa5613c4a5cb5d.tar.xz linux-e55077307d6f7ce86f9a468408fa5613c4a5cb5d.zip | |
nvmem: meson-efuse: add write support
Add write support to the meson-gx efuse driver.
Beware, this efuse is one time programmable !
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/meson-efuse.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c index 4623249dfd87..d769840d1e18 100644 --- a/drivers/nvmem/meson-efuse.c +++ b/drivers/nvmem/meson-efuse.c @@ -28,6 +28,13 @@ static int meson_efuse_read(void *context, unsigned int offset, bytes, 0, 0, 0); } +static int meson_efuse_write(void *context, unsigned int offset, + void *val, size_t bytes) +{ + return meson_sm_call_write((u8 *)val, bytes, SM_EFUSE_WRITE, offset, + bytes, 0, 0, 0); +} + static const struct of_device_id meson_efuse_match[] = { { .compatible = "amlogic,meson-gxbb-efuse", }, { /* sentinel */ }, @@ -52,8 +59,8 @@ static int meson_efuse_probe(struct platform_device *pdev) econfig->name = dev_name(dev); econfig->stride = 1; econfig->word_size = 1; - econfig->read_only = true; econfig->reg_read = meson_efuse_read; + econfig->reg_write = meson_efuse_write; econfig->size = size; nvmem = devm_nvmem_register(&pdev->dev, econfig); |