linux-kernel - [PATCH 4.15 27/45] arm64: dts: add #cooling-cells to CPU nodes

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Message-Id: <20180223170719.625005019@linuxfoundation.org>
Date:   Fri, 23 Feb 2018 19:29:06 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Olof Johansson <olof@...om.net>
Subject: [PATCH 4.15 27/45] arm64: dts: add #cooling-cells to CPU nodes

4.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@...db.de>

commit acbf76ee05067c3942852019993f7beb69a0f45f upstream.

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@...db.de>
Tested-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
Signed-off-by: Olof Johansson <olof@...om.net>
[arnd: backported to 4.15]
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -81,6 +81,7 @@
 			reg = <0x000>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SLEEP_0>;
+			#cooling-cells = <2>;
 		};
 
 		cpu1: cpu@1 {
@@ -97,6 +98,7 @@
 			reg = <0x100>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SLEEP_0>;
+			#cooling-cells = <2>;
 		};
 
 		cpu3: cpu@101 {