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nvmem: rockchip-efuse: parse 'rockchip,efuse-size'

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The eFuse size is defined in property <reg> before, but the length
of registers is not equal to the size on some platforms, so we
add a new property to redefine it.

Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Finley Xiao 2017-12-15 14:06:08 +00:00 committed by Greg Kroah-Hartman
parent 683618b063
commit 32277723ba
2 changed files with 7 additions and 1 deletions
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4
Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
View File

@ -12,6 +12,10 @@ Required properties:
- clocks: Should be the clock id of eFuse
- clock-names: Should be "pclk_efuse"
Optional properties:
- rockchip,efuse-size: Should be exact eFuse size in byte, the eFuse
size in property <reg> will be invalid if define this property.
Deprecated properties:
- compatible: "rockchip,rockchip-efuse"
Old efuse compatible value compatible to rk3066a, rk3188 and rk3288

4
drivers/nvmem/rockchip-efuse.c
View File

@ -217,7 +217,9 @@ static int rockchip_efuse_probe(struct platform_device *pdev)
return PTR_ERR(efuse->clk);
efuse->dev = &pdev->dev;
econfig.size = resource_size(res);
if (of_property_read_u32(dev->of_node, "rockchip,efuse-size",
&econfig.size))
econfig.size = resource_size(res);
econfig.reg_read = match->data;
econfig.priv = efuse;
econfig.dev = efuse->dev;