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

From: Geert Uytterhoeven
Date: Thu Dec 17 2020 - 06:12:57 EST


Hi Adam,

CC alsa-devel

On Sun, Dec 13, 2020 at 7:38 PM Adam Ford <aford173@xxxxxxxxx> 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@xxxxxxxxx>

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@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.

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"?

> 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@xxxxxxxxxxxxxx

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