diff options
| author | Takeshi Kihara <takeshi.kihara.df@renesas.com> | 2020-03-09 20:11:12 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2020-03-12 12:51:20 +0300 |
| commit | 5fc00fce6276cd8e9231586bdd3e5c4d44f8f9f7 (patch) | |
| tree | 20ee13a2a5d72df20299c9364839f9c7cbe86fe2 /arch/arm64/boot/dts/renesas/r8a77965.dtsi | |
| parent | 04456450f54b1ed87a8cea7b862d162faf8fe096 (diff) | |
| download | linux-5fc00fce6276cd8e9231586bdd3e5c4d44f8f9f7.tar.xz | |
arm64: dts: renesas: r8a77965: Add CPUIdle support for CA57 cores
Enable cpuidle (core shutdown) support for the CA57 cores on R-Car M3-N.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200309171112.21086-1-geert+renesas@glider.be
Diffstat (limited to 'arch/arm64/boot/dts/renesas/r8a77965.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r8a77965.dtsi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r8a77965.dtsi b/arch/arm64/boot/dts/renesas/r8a77965.dtsi index f7468822e81e..d82dd4e67b62 100644 --- a/arch/arm64/boot/dts/renesas/r8a77965.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a77965.dtsi @@ -111,6 +111,7 @@ power-domains = <&sysc R8A77965_PD_CA57_CPU0>; next-level-cache = <&L2_CA57>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; #cooling-cells = <2>; dynamic-power-coefficient = <854>; clocks = <&cpg CPG_CORE R8A77965_CLK_Z>; @@ -124,6 +125,7 @@ power-domains = <&sysc R8A77965_PD_CA57_CPU1>; next-level-cache = <&L2_CA57>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; clocks = <&cpg CPG_CORE R8A77965_CLK_Z>; operating-points-v2 = <&cluster0_opp>; }; @@ -134,6 +136,19 @@ cache-unified; cache-level = <2>; }; + + idle-states { + entry-method = "psci"; + + CPU_SLEEP_0: cpu-sleep-0 { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0010000>; + local-timer-stop; + entry-latency-us = <400>; + exit-latency-us = <500>; + min-residency-us = <4000>; + }; + }; }; extal_clk: extal { |