Re: [PATCH 3/6] clk: mediatek: mt8192: Do not re-register top_early_divs in probe function

[AngeloGioacchino Del Regno]

Il 26/09/22 12:25, Chen-Yu Tsai ha scritto:
> top_early_divs are registered in the CLK_OF_DECLARE_DRIVER() half of the
> topckgen clk driver. Don't try to register it again in the actual probe
> function. This gets rid of the "Trying to register duplicate clock ..."
> warning.
>
> Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>

Can't we simply remove the CLK_OF_DECLARE_DRIVER() and top_init_early entirely,
and transfer TOP_CSW_F26M_D2 to top_divs[] instead?
I get that systimer concern and we have something similar in MT8195, where the
TOP_CLK26M_D2 is registered "late".

Getting back to MT8192, TOP_CSW_F26M_D2 seems to be used only for:
1. systimer
2. SPMI MST (registered "late").

Being it a fixed factor clock, parented to another fixed clock, it doesn't
even have any ON/OFF switch, so I think it would be actually possible to go
for the proposed removal... which would further improve this cleanup.

Regards,
Angelo