[PATCH 06/18] arm64: dts: renesas: beacon: Configure Audio CODEC clocks

[Adam Ford]

On Thu, Dec 17, 2020 at 5:12 AM Geert Uytterhoeven <geert at linux-m68k.org> wrote:
>
> Hi Adam,
>
> CC alsa-devel
>
> On Sun, Dec 13, 2020 at 7:38 PM Adam Ford <aford173 at gmail.com> wrote:
> > With the newly added configurable clock options, the audio CODEC can
> > configure the mclk automatically.  Add the reference to the versaclock.
> > Since the devices on I2C5 can communicate at 400KHz, let's also increase
> > that too
> >
> > Signed-off-by: Adam Ford <aford173 at gmail.com>
>
> Thanks for your patch!
>
> > --- a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi
> > @@ -424,13 +424,15 @@ &i2c0 {
> >
> >  &i2c5 {
> >         status = "okay";
> > -       clock-frequency = <100000>;
> > +       clock-frequency = <400000>;
> >         pinctrl-0 = <&i2c5_pins>;
> >         pinctrl-names = "default";
> >
> >         codec: wm8962 at 1a {
> >                 compatible = "wlf,wm8962";
> >                 reg = <0x1a>;
> > +               clocks = <&versaclock6_bb 3>;
> > +               clock-names = "mclk";
>
> While the driver does get the (nameless) clock, the DT bindings lack any
> mention of a clocks property.  It would be good to update the bindings.

Agreed.  I'll push an update to add the clocks property.

>
> Note that arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi and
> arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi (both by your
> hand) use "xclk" instead of "mclk"?

On the schematics for the two imx boards, it's labeled as xclk, so it
was named as such.  For this board, the schematic names it mclk. The
driver doesn't care about the clock-names property, so I'll just
remove them.

adam
>
> >                 DCVDD-supply = <&reg_audio>;
> >                 DBVDD-supply = <&reg_audio>;
> >                 AVDD-supply = <&reg_audio>;
>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds