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And the binding was not > applied, so now there's a new undocumented compatible. Thank you for pointing this. I have also thought that v2 patch-set was ignored/rejected because it got many reviews... After posting v2, I have talked with Renesas member and now we are thinking that this driver style should be changed/updated to based on MFD driver. Wolfram is developping it now. So I will post new version/style of it. Thank you for your help !! Best regards --- Kuninori Morimoto