From: Arnd Bergmann <arnd@arndb.de>
To: Matthias Brugger <matthias.bgg@gmail.com>
Cc: arm@kernel.org, Arnd Bergmann <arnd@arndb.de>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Chunfeng Yun <chunfeng.yun@mediatek.com>,
        Daniel Kurtz <djkurtz@chromium.org>,
        Andrew-sh Cheng <andrew-sh.cheng@mediatek.com>,
        Chaotian Jing <chaotian.jing@mediatek.com>,
        "dawei.chien@mediatek.com" <dawei.chien@mediatek.com>,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: add #cooling-cells to CPU nodes
Date: Wed, 10 Jan 2018 22:06:48 +0100
Message-Id: <20180110210706.2331225-1-arnd@arndb.de>
Sender: linux-kernel-owner@vger.kernel.org

dtc complains about the lack of #coolin-cells properties for the
CPU nodes that are referred to as "cooling-device":

arch/arm64/boot/dts/mediatek/mt8173-evb.dtb: Warning (cooling_device_property): Missing property '#cooling-cells' in node /cpus/cpu@0 or bad phandle (referred from /thermal-zones/cpu_thermal/cooling-maps/map@0:cooling-device[0])
arch/arm64/boot/dts/mediatek/mt8173-evb.dtb: Warning (cooling_device_property): Missing property '#cooling-cells' in node /cpus/cpu@100 or bad phandle (referred from /thermal-zones/cpu_thermal/cooling-maps/map@1:cooling-device[0])

Apparently this property must be '<2>' to match the binding.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
If this looks ok, I'd apply it directly to the fixes branch
for 4.15, as the warning is one that was introduced in this
release.
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index b477ad790071..9fbe4705ee88 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -155,6 +155,7 @@
 			reg = <0x000>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SLEEP_0>;
+			#cooling-cells = <2>;
 			clocks = <&infracfg CLK_INFRA_CA53SEL>,
 				 <&apmixedsys CLK_APMIXED_MAINPLL>;
 			clock-names = "cpu", "intermediate";
@@ -179,6 +180,7 @@
 			reg = <0x100>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SLEEP_0>;
+			#cooling-cells = <2>;
 			clocks = <&infracfg CLK_INFRA_CA57SEL>,
 				 <&apmixedsys CLK_APMIXED_MAINPLL>;
 			clock-names = "cpu", "intermediate";
-- 
2.9.0