On Fri, Oct 25, 2019 at 11:26:22PM +0530, Jagan Teki wrote: > Usage of clocks are varies between different Allwinner > DSI controllers. Clocking in A33 would need bus and > mod clocks where as A64 would need only bus clock. > > To support this kind of clocking structure variants > in the same dsi driver, There's no variance in the clock structure as far as the bus clock is concerned. > explicit handling of common clock would require since the A64 > doesn't need to mention the clock-names explicitly in dts since it > support only one bus clock. > > Also pass clk_id NULL instead "bus" to regmap clock init function > since the single clock variants no need to mention clock-names > explicitly. You don't need explicit clock handling. Passing NULL as the argument in regmap_init_mmio_clk will make it use the first clock, which is the bus clock. Maxime