linux-kernel - Re: [PATCH 2/2] arm64: tegra: Assume no CLKREQ presence by default

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Message-ID: <20191016161952.GB2526111@ulmo>
Date:   Wed, 16 Oct 2019 18:19:52 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Vidya Sagar <vidyas@...dia.com>
Cc:     lorenzo.pieralisi@....com, bhelgaas@...gle.com, robh+dt@...nel.org,
        jonathanh@...dia.com, andrew.murray@....com,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kthota@...dia.com,
        mmaddireddy@...dia.com, sagar.tv@...il.com
Subject: Re: [PATCH 2/2] arm64: tegra: Assume no CLKREQ presence by default

On Sat, Oct 05, 2019 at 10:12:12PM +0530, Vidya Sagar wrote:
> Although Tegra194 has support for CLKREQ sideband signal and P2972
> has routing of the same till the slot, it is the case most of the time
> that the connected device doesn't have CLKREQ support. Hence, it makes
> sense to assume that there is no CLKREQ support by default and it can
> be enabled on need basis when a card with CLKREQ support is connected.
> 
> Signed-off-by: Vidya Sagar <vidyas@...dia.com>
> ---
>  arch/arm64/boot/dts/nvidia/tegra194.dtsi | 6 ------
>  1 file changed, 6 deletions(-)

Applied to for-5.5/arm64/dt, thanks.

Thierry

> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> index a312c051448b..11220d97adb8 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> @@ -1186,7 +1186,6 @@
>  
>  		nvidia,bpmp = <&bpmp 1>;
>  
> -		supports-clkreq;
>  		nvidia,aspm-cmrt-us = <60>;
>  		nvidia,aspm-pwr-on-t-us = <20>;
>  		nvidia,aspm-l0s-entrance-latency-us = <3>;
> @@ -1232,7 +1231,6 @@
>  
>  		nvidia,bpmp = <&bpmp 2>;
>  
> -		supports-clkreq;
>  		nvidia,aspm-cmrt-us = <60>;
>  		nvidia,aspm-pwr-on-t-us = <20>;
>  		nvidia,aspm-l0s-entrance-latency-us = <3>;
> @@ -1278,7 +1276,6 @@
>  
>  		nvidia,bpmp = <&bpmp 3>;
>  
> -		supports-clkreq;
>  		nvidia,aspm-cmrt-us = <60>;
>  		nvidia,aspm-pwr-on-t-us = <20>;
>  		nvidia,aspm-l0s-entrance-latency-us = <3>;
> @@ -1324,7 +1321,6 @@
>  
>  		nvidia,bpmp = <&bpmp 4>;
>  
> -		supports-clkreq;
>  		nvidia,aspm-cmrt-us = <60>;
>  		nvidia,aspm-pwr-on-t-us = <20>;
>  		nvidia,aspm-l0s-entrance-latency-us = <3>;
> @@ -1370,7 +1366,6 @@
>  
>  		nvidia,bpmp = <&bpmp 0>;
>  
> -		supports-clkreq;
>  		nvidia,aspm-cmrt-us = <60>;
>  		nvidia,aspm-pwr-on-t-us = <20>;
>  		nvidia,aspm-l0s-entrance-latency-us = <3>;
> @@ -1420,7 +1415,6 @@
>  		interrupt-map-mask = <0 0 0 0>;
>  		interrupt-map = <0 0 0 0 &gic GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
>  
> -		supports-clkreq;
>  		nvidia,aspm-cmrt-us = <60>;
>  		nvidia,aspm-pwr-on-t-us = <20>;
>  		nvidia,aspm-l0s-entrance-latency-us = <3>;
> -- 
> 2.17.1
> 

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