diff options
| author | Biju Das <biju.das@bp.renesas.com> | 2019-09-13 11:50:07 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2019-10-01 10:50:57 +0300 |
| commit | 8438bfda9d76815707a7823ab91a944eea6d6266 (patch) | |
| tree | 9042b015bde7d3166a4fafa606d65aba66db72c8 /arch/arm64/boot/dts/renesas/r8a774c0.dtsi | |
| parent | 28a1b34c00dad4be91108369ca25ef8dc8bf850d (diff) | |
| download | linux-8438bfda9d76815707a7823ab91a944eea6d6266.tar.xz | |
arm64: dts: renesas: r8a774c0: Create thermal zone to support IPA
Setup a thermal zone driven by SoC temperature sensor.
Create passive trip points and bind them to CPUFreq cooling
device that supports power extension.
Based on the work done by Dien Pham <dien.pham.ry@renesas.com>
and others for r8a77990 SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Link: https://lore.kernel.org/r/1568364608-46548-1-git-send-email-biju.das@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'arch/arm64/boot/dts/renesas/r8a774c0.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi index a1c2de90e470..764df4c0ea05 100644 --- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi @@ -73,6 +73,7 @@ compatible = "arm,cortex-a53"; reg = <0>; device_type = "cpu"; + #cooling-cells = <2>; power-domains = <&sysc R8A774C0_PD_CA53_CPU0>; next-level-cache = <&L2_CA53>; enable-method = "psci"; @@ -1905,18 +1906,30 @@ thermal-zones { cpu-thermal { polling-delay-passive = <250>; - polling-delay = <1000>; - thermal-sensors = <&thermal>; + polling-delay = <0>; + thermal-sensors = <&thermal 0>; + sustainable-power = <717>; cooling-maps { + map0 { + trip = <&target>; + cooling-device = <&a53_0 0 2>; + contribution = <1024>; + }; }; trips { - cpu-crit { + sensor1_crit: sensor1-crit { temperature = <120000>; hysteresis = <2000>; type = "critical"; }; + + target: trip-point1 { + temperature = <100000>; + hysteresis = <2000>; + type = "passive"; + }; }; }; }; |