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Message-ID: <2ec80bd8-dfef-d2e6-eb41-6e6088043e33@collabora.com>
Date: Wed, 30 Nov 2022 12:10:14 +0100
From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
To: Chen-Yu Tsai <wenst@...omium.org>,
Matthias Brugger <matthias.bgg@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
NĂcolas F . R . A . Prado
<nfraprado@...labora.com>, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
"allen-kh.cheng" <allen-kh.cheng@...iatek.com>
Subject: Re: [PATCH resend] arm64: dts: mediatek: mt8192: Mark scp_adsp clock
as broken
Il 30/11/22 04:17, Chen-Yu Tsai ha scritto:
> The scp_adsp clock controller is under the SCP_ADSP power domain. This
> power domain is currently not supported nor defined.
>
> Mark the clock controller as broken for now, to avoid the system from
> trying to access it, and causing the CPU or bus to stall.
>
> Fixes: 5d2b897bc6f5 ("arm64: dts: mediatek: Add mt8192 clock controllers")
> Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
....or we can add the ADSP power domain to actually fix this properly, which looks
like being a generally good idea :-)
Allen, can you please take care of that?
Thank you,
Angelo
> ---
> arch/arm64/boot/dts/mediatek/mt8192.dtsi | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> index 6b20376191a7..ef91941848ae 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> @@ -575,6 +575,8 @@ scp_adsp: clock-controller@...20000 {
> compatible = "mediatek,mt8192-scp_adsp";
> reg = <0 0x10720000 0 0x1000>;
> #clock-cells = <1>;
> + /* power domain dependency not upstreamed */
> + status = "broken";
> };
>
> uart0: serial@...02000 {
>
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