Re: [PATCH v6 3/7] dt-bindings: clk: sprd: add bindings for sc9863a clock controller

From: Stephen Boyd
Date: Tue Mar 24 2020 - 22:03:33 EST


Quoting Chunyan Zhang (2020-03-22 04:00:39)
> Hi Stephen,
>
> On Sat, 21 Mar 2020 at 09:12, Stephen Boyd <sboyd@xxxxxxxxxx> wrote:
> >
> > Quoting Chunyan Zhang (2020-03-03 23:27:26)
> > > From: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>
> > >
> > > add a new bindings to describe sc9863a clock compatible string.
> > >
> > > Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>
> > [...]
> > > +examples:
> > > + - |
> > > + ap_clk: clock-controller@21500000 {
> > > + compatible = "sprd,sc9863a-ap-clk";
> > > + reg = <0 0x21500000 0 0x1000>;
> > > + clocks = <&ext_26m>, <&ext_32k>;
> > > + clock-names = "ext-26m", "ext-32k";
> > > + #clock-cells = <1>;
> > > + };
> > > +
> > > + - |
> > > + soc {
> > > + #address-cells = <2>;
> > > + #size-cells = <2>;
> > > +
> > > + ap_ahb_regs: syscon@20e00000 {
> > > + compatible = "sprd,sc9863a-glbregs", "syscon", "simple-mfd";
> > > + reg = <0 0x20e00000 0 0x4000>;
> > > + #address-cells = <1>;
> > > + #size-cells = <1>;
> > > + ranges = <0 0 0x20e00000 0x4000>;
> > > +
> > > + apahb_gate: apahb-gate@0 {
> >
> > Why do we need a node per "clk type" in the simple-mfd syscon? Can't we
> > register clks from the driver that matches the parent node and have that
> > driver know what sorts of clks are where? Sorry I haven't read the rest
> > of the patch series and I'm not aware if this came up before. If so,
> > please put details about this in the commit text.
>
> Please see the change logs after v2 in cover-letter.
>
> Rob suggested us to put some clocks under syscon nodes, since these
> clocks have the same
> physical address base with the syscon;

Ok. I'll apply the series to clk-next then.