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How come the driver is capable of working without them? >>> >> >> The driver was working because the LINFlexD clocks were configured and kept >> enabled by the downstream bootloader (TF-A and U-Boot). This is not ideal >> since LINFlexD Linux driver should manage those clocks independently and not >> rely on a previous bootloader configuration (hence the need for this current >> patchset). > > I'd also mark them as required in the binding too, but the driver will > still have to account for them being missing, for backwards > compatibility reasons. Add a comment explaining the history to the > commit message when you do that. Already in the second patch from this patchset the clocking support was added in the LINFlexD driver as optional, indeed for backwards compatibility. I presumed that because of this optional clock enablement, I should not add the clocks as required in the bindings, but I will do so in V2. Thanks.