Re: [PATCH v6 4/7] clk: mediatek: Add MT2701 clock support

James Liao
2016-02-15T09:19:42Z

Hi Mike,

On Wed, 2016-02-10 at 12:08 -0800, Michael Turquette wrote:
> Quoting James Liao (2016-02-05 01:37:27)
> > +CLK_OF_DECLARE(mtk_topckgen, "mediatek,mt2701-topckgen", mtk_topckgen_init);
> > +CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt2701-infracfg", mtk_infrasys_init);
> > +CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt2701-pericfg", mtk_pericfg_init);
> > +CLK_OF_DECLARE(mtk_mmsys, "mediatek,mt2701-mmsys", mtk_mmsys_init);
> > +CLK_OF_DECLARE(mtk_imgsys, "mediatek,mt2701-imgsys", mtk_imgsys_init);
> > +CLK_OF_DECLARE(mtk_vdecsys, "mediatek,mt2701-vdecsys", mtk_vdecsys_init);
> > +CLK_OF_DECLARE(mtk_hifsys, "mediatek,mt2701-hifsys", mtk_hifsys_init);
> > +CLK_OF_DECLARE(mtk_ethsys, "mediatek,mt2701-ethsys", mtk_ethsys_init);
> > +CLK_OF_DECLARE(mtk_bdpsys, "mediatek,mt2701-bdpsys", mtk_bdpsys_init);
> > +CLK_OF_DECLARE(mtk_apmixedsys, "mediatek,mt2701-apmixedsys",
>
> :-/
>
> This is way too much CLK_OF_DECLARE and not enough Linux Driver Model.
>
> I understand that some platforms really must initialize some clocks very
> early, but can we please separate those into one table and call
> CLK_OF_DECLARE on only that set, and then register the rest through a
> platform_driver later on?

I know CLK_OF_DECLARE is much earlier than platform_driver, so it can
ensure all drivers lookup their clocks successfully during
platform_driver probe. Is there anything different to init these clock
providers in CLK_OF_DECLARE and platform_driver?

Best regards,

James