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If there is another bootloader that clocks >> can be simply disabled. I don't think there is any reason to depends on >> bootloader behavior. If there are clocks which has to be ON I can't see any >> reason not to drive them. > > My reference to zynq_clk_setup() was to explain that this patch leaves > the existing management of dbg_trc and dbg_apb unchanged. > > The CoreSight drivers do not request clocks named "dbg_trc" or "dbg_apb". And this is the point. DT binding is not describing what Linux driver handles. Binding describes HW itself. And for proper functionality these 2 clocks need to be handled. That Linux driver is not doing it that's different issue. Thanks, Michal