From: Ondrej Jirman <megous@xxxxxxxxxx>
Enable to use CPUs as cooling device in the future, by adding
"#cooling-cells" to each CPU node. This property should be present for
all the CPUs of a cluster. If these are present only for a subset of
CPUs of a cluster then things will start falling apart as soon as the
CPUs are brought online in a different order. For example, this will
happen because the operating system looks for such properties in the CPU
node it is trying to bring up, so that it can register a cooling device.
Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx>
---
arch/arm/boot/dts/sun8i-a83t.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index fcb7ef5ce2df..7a40b7d77ec0 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -69,6 +69,7 @@
cci-control-port = <&cci_control0>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <0>;
+ #cooling-cells = <2>;
};
cpu@1 {
@@ -78,6 +79,7 @@
cci-control-port = <&cci_control0>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <1>;
+ #cooling-cells = <2>;
};
cpu@2 {
@@ -87,6 +89,7 @@
cci-control-port = <&cci_control0>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <2>;
+ #cooling-cells = <2>;
};
cpu@3 {
@@ -96,6 +99,7 @@
cci-control-port = <&cci_control0>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <3>;
+ #cooling-cells = <2>;
};
cpu100: cpu@100 {
@@ -107,6 +111,7 @@
cci-control-port = <&cci_control1>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <0x100>;
+ #cooling-cells = <2>;
};
cpu@101 {
@@ -116,6 +121,7 @@
cci-control-port = <&cci_control1>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <0x101>;
+ #cooling-cells = <2>;
};
cpu@102 {
@@ -125,6 +131,7 @@
cci-control-port = <&cci_control1>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <0x102>;
+ #cooling-cells = <2>;
};
cpu@103 {
@@ -134,6 +141,7 @@
cci-control-port = <&cci_control1>;
enable-method = "allwinner,sun8i-a83t-smp";
reg = <0x103>;
+ #cooling-cells = <2>;
};
};
--
2.21.0
