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Commit e5507730 authored by Jerome Brunet's avatar Jerome Brunet Committed by Greg Kroah-Hartman
Browse files

nvmem: meson-efuse: add write support 



Add write support to the meson-gx efuse driver.
Beware, this efuse is one time programmable !

Reviewed-by: default avatarKevin Hilman <khilman@baylibre.com>
Signed-off-by: default avatarJerome Brunet <jbrunet@baylibre.com>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a29a63bd

drivers/nvmem/meson-efuse.c

+8 −1
Original line number Diff line number Diff line
@@ -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);