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A patch for NAND uclass support was proposed about half a year ago: https://patchwork.ozlabs.org/patch/722282/ It was not merged and I do not see on-going work for this. Without DM-based probing, we need to set up pinctrl etc. in an ad-hoc way and give lots of crappy CONFIG options for base addresses and properties, which are supposed to be specified by DT. This is painful. This commit just provides a probe hook to retrieve "reg" from DT and allocate private data in a DM manner. This DT driver is not essentially a NAND driver, in fact it is (ab)using UCLASS_MISC. Once UCLASS_NAND is supported, it would be possible to migrate to it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>