[PATCH 3/7] clk: sunxi: unify sun6i AHB1 clock with proper PLL6 pre-divider

Mike Turquette
2014-09-25T23:03:40Z

Quoting Maxime Ripard (2014-09-13 03:26:03)
> On Fri, Sep 12, 2014 at 11:16:26AM +0800, Chen-Yu Tsai wrote:
> > Hi,
> >
> > On Fri, Sep 12, 2014 at 5:02 AM, Maxime Ripard
> > <maxime.ripard@free-electrons.com> wrote:
> > > Hi,
> > >
> > > On Sat, Sep 06, 2014 at 06:47:24PM +0800, Chen-Yu Tsai wrote:
> > >> This patch unifies the sun6i AHB1 clock, originally supported
> > >> with separate mux and divider clks. It also adds support for
> > >> the pre-divider on the PLL6 input, thus allowing the clock to
> > >> be muxed to PLL6 with proper clock rate calculation.
> > >>
> > >> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> > >
> > > It looks fine, but I'd rather see this in a separate file, especially
> > > since we don't seem to have any order dependency.
> >
> > Sorry, just to be clear, separate file under clk/sunxi?
>
> Yes
>
> > This cannot be in a separate file, as it shares a spinlock with apb1
> > divider. They share the same register.
> >
> > We could move apb1 out though. But i would prefer to do that when
> > we split out all the clocks into individual OF_CLK_DECLAREs.
>
> Ah right, my bad :)
>
> My plan on the long term is to kill clk-sunxi as a place where all the
> clocks are defined, and only leave the "policy" there, for example the
> clock protection code (even if that should probably be removed too,
> together with clkdev), the various rates / parenting enforcements,
> etc.

Interesting! Where are you planning to store the clock data?

Regards,
Mike

>
> Maxime
>
> --
> Maxime Ripard, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com