If CPU0 is unplugged the cooling device can not rebind to CPU1. And if CPU0 is plugged in again, the cooling device may fail to initialize.
If the CPUs are mapped with the physical CPU0 to Linux numbering CPU1, the cooling device mapping will fail. Hence specify all CPU cores as a cooling devices in the device-tree. Tested-by: Peter Geis <[email protected]> Tested-by: Matt Merhar <[email protected]> Suggested-by: Daniel Lezcano <[email protected]> Signed-off-by: Dmitry Osipenko <[email protected]> --- arch/arm/boot/dts/tegra30-ouya.dts | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/tegra30-ouya.dts b/arch/arm/boot/dts/tegra30-ouya.dts index 8f66b16a786f..faeccc301368 100644 --- a/arch/arm/boot/dts/tegra30-ouya.dts +++ b/arch/arm/boot/dts/tegra30-ouya.dts @@ -392,19 +392,23 @@ cpu0: cpu@0 { cpu-supply = <&vdd_cpu>; #cooling-cells = <2>; }; - cpu@1 { + + cpu1: cpu@1 { operating-points-v2 = <&cpu0_opp_table>; cpu-supply = <&vdd_cpu>; + #cooling-cells = <2>; }; - cpu@2 { + cpu2: cpu@2 { operating-points-v2 = <&cpu0_opp_table>; cpu-supply = <&vdd_cpu>; + #cooling-cells = <2>; }; - cpu@3 { + cpu3: cpu@3 { operating-points-v2 = <&cpu0_opp_table>; cpu-supply = <&vdd_cpu>; + #cooling-cells = <2>; }; }; @@ -456,7 +460,10 @@ map0 { }; map1 { trip = <&cpu_alert1>; - cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; }; }; -- 2.29.2
