Re: [RFC 1/2] dt-bindings: imx-ocotp: Add fusable-node property

[Rob Herring]

On Mon, May 20, 2019 at 03:06:35AM +0000, Peng Fan wrote:
> Introduce fusable-node property for i.MX OCOTP driver.
> The property will only be used by Firmware(eg. U-Boot) to
> runtime disable the nodes.
> 
> Take i.MX6ULL for example, there are several parts that only
> have limited modules enabled controlled by OCOTP fuse. It is
> not flexible to provide several dts for the serval parts, instead
> we could provide one device tree and let Firmware to runtime disable
> the device tree nodes for those modules that are disable(fused).
> 
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
> 
> Currently NXP vendor use U-Boot to set status to disabled for devices
> that could not function,
> https://source.codeaurora.org/external/imx/uboot-imx/tree/arch/arm/mach-imx/mx6/module_fuse.c?h=imx_v2018.03_4.14.98_2.0.0_ga#n149
> But this approach is will not work if kernel dts node path changed.

Why would the path change? The DT should be stable.

Rob