Re: [linux-sunxi] [PATCH v5 1/3] arm64: dts: allwinner: Add SPDIF node for Allwinner H6

From: ClÃment PÃron
Date: Mon Aug 12 2019 - 03:12:04 EST


Hi Chen-Yu,

On Mon, 12 Aug 2019 at 08:35, Chen-Yu Tsai <wens@xxxxxxxxxx> wrote:
>
> On Mon, Aug 12, 2019 at 12:52 PM Chen-Yu Tsai <wens@xxxxxxxxxx> wrote:
> >
> > Hi,
> >
> > On Mon, Aug 12, 2019 at 4:31 AM ClÃment PÃron <peron.clem@xxxxxxxxx> wrote:
> > >
> > > The Allwinner H6 has a SPDIF controller called OWA (One Wire Audio).
> > >
> > > Only one pinmuxing is available so set it as default.
> > >
> > > Signed-off-by: ClÃment PÃron <peron.clem@xxxxxxxxx>
> > > ---
> > > arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 38 ++++++++++++++++++++
> > > 1 file changed, 38 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> > > index 7628a7c83096..677eb374678d 100644
> > > --- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> > > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> > > @@ -83,6 +83,24 @@
> > > method = "smc";
> > > };
> > >
> > > + sound-spdif {
> > > + compatible = "simple-audio-card";
> > > + simple-audio-card,name = "sun50i-h6-spdif";
> > > +
> > > + simple-audio-card,cpu {
> > > + sound-dai = <&spdif>;
> > > + };
> > > +
> > > + simple-audio-card,codec {
> > > + sound-dai = <&spdif_out>;
> > > + };
> > > + };
> > > +
> > > + spdif_out: spdif-out {
> > > + #sound-dai-cells = <0>;
> > > + compatible = "linux,spdif-dit";
> > > + };
> > > +
> >
> > We've always had this part in the board dts. It isn't relevant to boards
> > that don't have SPDIF output.
> >
> > Also, not so relevant here, but there are different simple sound card
> > constructs. Some support multiple audio streams with dynamic PCM routing.
> > How these are configured really depends on what interfaces are usable.
> >
> > So keeping this at the board level is IMO a better choice.

I Agree, I try to keep coherency with sun50i-a64.dtsi.
But sound routing is really at board level not SoC one.

Regards,
ClÃment

>
> Forgot to mention. Both patches and all parts in this patch are OK. It's
> just the parts the need to be moved.
>
>
> > ChenYu
> >
> >
> > > timer {
> > > compatible = "arm,armv8-timer";
> > > interrupts = <GIC_PPI 13
> > > @@ -282,6 +300,11 @@
> > > bias-pull-up;
> > > };
> > >
> > > + spdif_tx_pin: spdif-tx-pin {
> > > + pins = "PH7";
> > > + function = "spdif";
> > > + };
> > > +
> > > uart0_ph_pins: uart0-ph-pins {
> > > pins = "PH0", "PH1";
> > > function = "uart0";
> > > @@ -411,6 +434,21 @@
> > > };
> > > };
> > >
> > > + spdif: spdif@5093000 {
> > > + #sound-dai-cells = <0>;
> > > + compatible = "allwinner,sun50i-h6-spdif";
> > > + reg = <0x05093000 0x400>;
> > > + interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
> > > + clocks = <&ccu CLK_BUS_SPDIF>, <&ccu CLK_SPDIF>;
> > > + clock-names = "apb", "spdif";
> > > + resets = <&ccu RST_BUS_SPDIF>;
> > > + dmas = <&dma 2>;
> > > + dma-names = "tx";
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&spdif_tx_pin>;
> > > + status = "disabled";
> > > + };
> > > +
> > > usb2otg: usb@5100000 {
> > > compatible = "allwinner,sun50i-h6-musb",
> > > "allwinner,sun8i-a33-musb";
> > > --
> > > 2.20.1
> > >
> > > --
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