linux-kernel - Re: [PATCH 3/3] arm64: dts: hi3660-hikey960: Add i2s & sound device

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Date:   Fri, 1 Mar 2019 08:45:47 -0800
From:   John Stultz <john.stultz@...aro.org>
To:     Pengcheng Li <lipengcheng8@...wei.com>
Cc:     Wei Xu <xuwei5@...ilicon.com>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Zhuangluan Su <suzhuangluan@...ilicon.com>,
        Kongfei <kongfei@...ilicon.com>,
        Liyuequan <liyuequan@...ilicon.com>,
        "Qianli (A)" <cash.qianli@...ilicon.com>,
        "huangli (I)" <huangli295@...ilicon.com>,
        Hantanglei <hantanglei@...wei.com>,
        wangyoulin <wangyoulin1@...ilicon.com>,
        ninggaoyu <ninggaoyu@...ilicon.com>,
        "xuwei (O)" <xuwei5@...wei.com>
Subject: Re: [PATCH 3/3] arm64: dts: hi3660-hikey960: Add i2s & sound device

On Thu, Feb 28, 2019 at 6:24 AM Pengcheng Li <lipengcheng8@...wei.com> wrote:
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> index 186251f..457cebc 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> @@ -27,6 +27,35 @@
>                 /* rewrite this at bootloader */
>                 reg = <0x0 0x0 0x0 0x0>;
>         };
> +
> +       i2s2: hi3660_i2s {
> +               compatible = "hisilicon,hi3660-i2s-1.0";
> +               reg = <0x0 0xe804f800 0x0 0x400>,
> +                       <0x0 0xe804e000 0x0 0x400>;
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&i2s2_pmx_func &i2s2_cfg_func>;
> +               dmas = <&asp_dmac 18 &asp_dmac 19>;
> +               dma-names = "rx", "tx";
> +               #sound-dai-cells = <0>;
> +       };
> +
> +       sound {
> +               compatible = "simple-audio-card";
> +               simple-audio-card,name = "hikey-hdmi";
> +               simple-audio-card,format = "i2s";
> +
> +               simple-audio-card,bitclock-master = <&sound_master>;
> +               simple-audio-card,frame-master = <&sound_master>;
> +
> +               sound_master: simple-audio-card,cpu {
> +                       sound-dai = <&i2s2>;
> +               };
> +
> +               simple-audio-card,codec {
> +                       sound-dai = <&adv7533>;
> +               };
> +       };
> +
>  };

Hey Pengcheng,
  Thanks for sending this out!   I've noticed one small issue with
this dts patch compared to the previous iterations.

When building I hit the following errors:
arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts:292.27-294.5:
Warning (sound_dai_property): /sound/simple-audio-card,codec: Missing
property '#sound-dai-cells' in node /soc/i2c@...72000/adv7533@39 or
bad phandle (referred from sound-dai[0])

Which seems to us missing the sound-dai-cells addition to the adv7511
node we had the first chunk of the patch here:
https://git.linaro.org/people/john.stultz/android-dev.git/commit/?h=dev/hikey960-mainline-WIP&id=4279d58b622acd686b4d17fbf378ace1c467763e

thanks
-john