linux-kernel - [PATCH v5 25/36] ARM: tegra: Add interconnect properties to Tegra20 device-tree

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Date:   Fri, 14 Aug 2020 03:06:10 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     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>
Cc:     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: [PATCH v5 25/36] ARM: tegra: Add interconnect properties to Tegra20 device-tree

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/tegra20.dtsi | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 72a4211a618f..629ad101c43b 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -111,6 +111,15 @@ dc@...00000 {
 
 			nvidia,head = <0>;
 
+			interconnects = <&mc TEGRA20_MC_DISPLAY0A &emc>,
+					<&mc TEGRA20_MC_DISPLAY0B &emc>,
+					<&mc TEGRA20_MC_DISPLAY0C &emc>,
+					<&mc TEGRA20_MC_DISPLAY1B &emc>;
+			interconnect-names = "wina",
+					     "winb",
+					     "winc",
+					     "cursor";
+
 			rgb {
 				status = "disabled";
 			};
@@ -128,6 +137,15 @@ dc@...40000 {
 
 			nvidia,head = <1>;
 
+			interconnects = <&mc TEGRA20_MC_DISPLAY0AB &emc>,
+					<&mc TEGRA20_MC_DISPLAY0BB &emc>,
+					<&mc TEGRA20_MC_DISPLAY0CB &emc>,
+					<&mc TEGRA20_MC_DISPLAY1BB &emc>;
+			interconnect-names = "wina",
+					     "winb",
+					     "winc",
+					     "cursor";
+
 			rgb {
 				status = "disabled";
 			};
@@ -630,15 +648,17 @@ mc: memory-controller@...0f000 {
 		interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
 		#reset-cells = <1>;
 		#iommu-cells = <0>;
+		#interconnect-cells = <1>;
 	};
 
-	memory-controller@...0f400 {
+	emc: memory-controller@...0f400 {
 		compatible = "nvidia,tegra20-emc";
 		reg = <0x7000f400 0x200>;
 		interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&tegra_car TEGRA20_CLK_EMC>;
 		#address-cells = <1>;
 		#size-cells = <0>;
+		#interconnect-cells = <0>;
 	};
 
 	fuse@...0f800 {
-- 
2.27.0