linux-kernel - Re: [PATCH v6 23/52] ARM: tegra: Add interconnect properties to Tegra124 device-tree

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Date:   Tue, 27 Oct 2020 10:16:04 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Georgi Djakov <georgi.djakov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Peter De Schrijver <pdeschrijver@...dia.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Mikko Perttunen <cyndis@...si.fi>,
        Viresh Kumar <vireshk@...nel.org>,
        Peter Geis <pgwipeout@...il.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        linux-tegra@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v6 23/52] ARM: tegra: Add interconnect properties to
 Tegra124 device-tree

On Mon, Oct 26, 2020 at 01:17:06AM +0300, Dmitry Osipenko wrote:
> Add interconnect properties to the Memory Controller, External Memory
> Controller and the Display Controller nodes in order to describe hardware
> interconnection.
> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  arch/arm/boot/dts/tegra124.dtsi | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
> index 64f488ba1e72..1801e30b1d3a 100644
> --- a/arch/arm/boot/dts/tegra124.dtsi
> +++ b/arch/arm/boot/dts/tegra124.dtsi
> @@ -113,6 +113,19 @@ dc@...00000 {
>  			iommus = <&mc TEGRA_SWGROUP_DC>;
>  
>  			nvidia,head = <0>;
> +
> +			interconnects = <&mc TEGRA124_MC_DISPLAY0A &emc>,

This does not compile.

> +					<&mc TEGRA124_MC_DISPLAY0B &emc>,
> +					<&mc TEGRA124_MC_DISPLAY0C &emc>,
> +					<&mc TEGRA124_MC_DISPLAYHC &emc>,
> +					<&mc TEGRA124_MC_DISPLAYD &emc>,
> +					<&mc TEGRA124_MC_DISPLAYT &emc>;
> +			interconnect-names = "wina",
> +					     "winb",
> +					     "winc",
> +					     "cursor",
> +					     "wind",
> +					     "wint";
>  		};
>  
>  		dc@...40000 {
> @@ -127,6 +140,15 @@ dc@...40000 {
>  			iommus = <&mc TEGRA_SWGROUP_DCB>;
>  
>  			nvidia,head = <1>;
> +
> +			interconnects = <&mc TEGRA124_MC_DISPLAY0AB &emc>,
> +					<&mc TEGRA124_MC_DISPLAY0BB &emc>,
> +					<&mc TEGRA124_MC_DISPLAY0CB &emc>,
> +					<&mc TEGRA124_MC_DISPLAYHCB &emc>;
> +			interconnect-names = "wina",
> +					     "winb",
> +					     "winc",
> +					     "cursor";
>  		};
>  
>  		hdmi: hdmi@...80000 {
> @@ -628,6 +650,7 @@ mc: memory-controller@...19000 {
>  
>  		#iommu-cells = <1>;
>  		#reset-cells = <1>;
> +		#interconnect-cells = <1>;
>  	};
>  
>  	emc: external-memory-controller@...1b000 {
> @@ -637,6 +660,8 @@ emc: external-memory-controller@...1b000 {
>  		clock-names = "emc";
>  
>  		nvidia,memory-controller = <&mc>;
> +

No need for blank line.

Best regards,
Krzysztof