Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   =?UTF-8?q?Artur=20=C5=9Awigo=C5=84?= <a.swigon@samsung.com>
To:     devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org
Cc:     =?UTF-8?q?Artur=20=C5=9Awigo=C5=84?= <a.swigon@samsung.com>,
        cw00.choi@samsung.com, myungjoo.ham@samsung.com,
        inki.dae@samsung.com, sw0312.kim@samsung.com,
        georgi.djakov@linaro.org, leonard.crestez@nxp.com,
        m.szyprowski@samsung.com, b.zolnierkie@samsung.com, krzk@kernel.org
Subject: [RFC PATCH v3 4/7] arm: dts: exynos: Add interconnect bindings for
 Exynos4412
Date:   Fri, 20 Dec 2019 12:56:50 +0100
Message-Id: <20191220115653.6487-5-a.swigon@samsung.com>
In-Reply-To: <20191220115653.6487-1-a.swigon@samsung.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="utf-8"
CMS-TYPE: 201P
References: <20191220115653.6487-1-a.swigon@samsung.com>
        <CGME20191220120144eucas1p119ececf161a6d45a6a194e432bbbd1f9@eucas1p1.samsung.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This patch adds the following properties to the Exynos4412 DT:
  - exynos,interconnect-parent-node: to declare connections between
    nodes in order to guarantee PM QoS requirements between nodes;
  - #interconnect-cells: required by the interconnect framework.

Note that #interconnect-cells is always zero and node IDs are not
hardcoded anywhere.

Signed-off-by: Artur Świgoń <a.swigon@samsung.com>
---
 arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 4ce3d77a6704..d9d70eacfcaf 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -90,6 +90,7 @@
 &bus_dmc {
 	exynos,ppmu-device = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
 	vdd-supply = <&buck1_reg>;
+	#interconnect-cells = <0>;
 	status = "okay";
 };
 
@@ -106,6 +107,8 @@
 &bus_leftbus {
 	exynos,ppmu-device = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
 	vdd-supply = <&buck3_reg>;
+	exynos,interconnect-parent-node = <&bus_dmc>;
+	#interconnect-cells = <0>;
 	status = "okay";
 };
 
@@ -116,6 +119,8 @@
 
 &bus_display {
 	exynos,parent-bus = <&bus_leftbus>;
+	exynos,interconnect-parent-node = <&bus_leftbus>;
+	#interconnect-cells = <0>;
 	status = "okay";
 };
 
-- 
2.17.1