Re: [PATCH v2 1/2] clk: Hi3660: change to register crgctrl clock with CLK_OF_DECLARE_DRIVER

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On Thu, May 18, 2017 at 06:51:37PM -0700, Stephen Boyd wrote:
> On 05/18, Leo Yan wrote:
> > diff --git a/drivers/clk/hisilicon/clk-hi3660.c b/drivers/clk/hisilicon/clk-hi3660.c
> > index fd5ce7f..4e5713b 100644
> > --- a/drivers/clk/hisilicon/clk-hi3660.c
> > +++ b/drivers/clk/hisilicon/clk-hi3660.c
> > @@ -547,10 +547,10 @@ static void hi3660_clk_crgctrl_init(struct device_node *np)
> >  				  ARRAY_SIZE(hi3660_crgctrl_divider_clks),
> >  				  clk_data);
> >  }
> > +CLK_OF_DECLARE_DRIVER(hi3660_clk_crgctrl, "hisilicon,hi3660-crgctrl",
> > +		      hi3660_clk_crgctrl_init);
> >  
> >  static const struct of_device_id hi3660_clk_match_table[] = {
> > -	{ .compatible = "hisilicon,hi3660-crgctrl",
> > -	  .data = hi3660_clk_crgctrl_init },
> 
> I'm slightly confused. CLK_OF_DECLARE_DRIVER is for when a
> platform driver _and_ CLK_OF_DELARE need to "probe" the same
> device node. But in this patch, the compatible string is being
> deleted from the driver's match table. Also, are all the
> registered in hi3660_clk_crgctrl_init() actually needed for the
> timer?

No.

> If only a subset, then I would expect to split the code
> and have the CLK_OF_DECLARE_DRIVER() path register just the clks
> that matter for the timer, and then leave the rest of the clks to
> be registered by the probe of the platform driver.

I'm also puzzled if need divide crgctrl clock into two parts. Thanks
for suggestion, will do this.

Thanks,
Leo Yan
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