linux-kernel - Re: [PATCH v3 1/3] arm64: dts: Add Mediatek SoC MT8192 and evaluation board dts and Makefile

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Date:   Wed, 29 Jul 2020 16:02:55 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     Seiya Wang <seiya.wang@...iatek.com>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "Daniel Lezcano" <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        <devicetree@...r.kernel.org>, <srv_heupstream@...iatek.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-serial@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3 1/3] arm64: dts: Add Mediatek SoC MT8192 and
 evaluation board dts and Makefile

Hi, Seiya:

On Wed, 2020-07-29 at 09:30 +0800, Seiya Wang wrote:
> Add basic chip support for Mediatek MT8192
> 
> Signed-off-by: Seiya Wang <seiya.wang@...iatek.com>
> ---
>  arch/arm64/boot/dts/mediatek/Makefile       |   1 +
>  arch/arm64/boot/dts/mediatek/mt8192-evb.dts |  29 ++
>  arch/arm64/boot/dts/mediatek/mt8192.dtsi    | 671 ++++++++++++++++++++++++++++
>  3 files changed, 701 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/mediatek/mt8192-evb.dts
>  create mode 100644 arch/arm64/boot/dts/mediatek/mt8192.dtsi
> 

[snip]

> +
> +		watchdog: watchdog@...07000 {
> +			compatible = "mediatek,mt6589-wdt";

According to [1] and [2], compatible string for mt8192 watch dog should
be "mediatek,mt6873-wdt","mediatek,mt8192-wdt".


[1]
https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2287090/12
[2]
https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2131598/18

> +			reg = <0 0x10007000 0 0x100>;
> +			#reset-cells = <1>;
> +		};
> +

[snip]

> +
> +		mmsys: mmsys@...00000 {
> +			compatible = "mediatek,mt8192-mmsys", "syscon";

You should define "mediatek,mt8192-mmsys" first, then you could use it
in this patch.

Regards,
CK

> +			reg = <0 0x14000000 0 0x1000>;
> +			#clock-cells = <1>;
> +		};
> +