Re: [PATCH v10 2/4] clk: clk-loongson2: add clock controller driver support

[Stephen Boyd]

Quoting zhuyinbo (2023-02-21 21:10:14)
> 
> >
> >>> yes, the use of dts doesn't require the use of CLK_OF_DECLARE and can
> >>> use platform_driver_register
> >>>
> >>> but my drvier not use platform_driver_register to register clk and use
> >>> CLK_OF_DECLARE to match of_clk_init.
> >> of_clk_init() is there to register clks that are needed for early init,
> >> i.e. the clockevent/clocksource or the root interrupt controller
> >> (irqchip). Otherwise, it isn't necessary to register clks via
> >> of_clk_init().
> > okay, I got it.
> 
> and,  the time driver  get clock by CCF that ask loongson2 clock driver 
> use CLK_OF_DECLARE
> 
> to match of_clk_init.   because  the timer_probe  is very early and the 
> timer driver was use TIMER_OF_DECLARE
> 
> to match time_probe.
> 

If you have a time driver that gets clks, register those early with
CLK_OF_DECLARE_DRIVER() and then have a platform driver for the rest of
the clk tree that registers clks later.