Add write support to the meson-gx efuse driver. Beware, this efuse is one time programmable !
Reviewed-by: Kevin Hilman <[email protected]> Signed-off-by: Jerome Brunet <[email protected]> --- drivers/nvmem/meson-efuse.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) 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); -- 2.14.3
