From mboxrd@z Thu Jan 1 00:00:00 1970 From: matthias.bgg@gmail.com (Matthias Brugger) Date: Tue, 10 Oct 2017 19:04:30 +0200 Subject: [PATCH] arm64: dts: mediatek: Add cpuidle support for MT2712 In-Reply-To: <1504158240-12639-1-git-send-email-jamesjj.liao@mediatek.com> References: <1504158240-12639-1-git-send-email-jamesjj.liao@mediatek.com> Message-ID: <6cef95d6-4cc2-8fff-85b0-c55fc79752c3@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 08/31/2017 07:44 AM, James Liao wrote: > Add CPU idle state nodes to enable C1/C2 idle states. > > Signed-off-by: James Liao > --- pushed to v4.14-next/dts64 Thanks. > This patch bases on latest Matthias v4.13-next/dts64 branch [1], > add CPU idle states for MT2712. > > [1] https://github.com/mbgg/linux-mediatek.git > > arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi > index 57d0396..5d4e406 100644 > --- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi > +++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi > @@ -39,6 +39,7 @@ > device_type = "cpu"; > compatible = "arm,cortex-a35"; > reg = <0x000>; > + cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>; > }; > > cpu1: cpu at 1 { > @@ -46,6 +47,7 @@ > compatible = "arm,cortex-a35"; > reg = <0x001>; > enable-method = "psci"; > + cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>; > }; > > cpu2: cpu at 200 { > @@ -53,6 +55,29 @@ > compatible = "arm,cortex-a72"; > reg = <0x200>; > enable-method = "psci"; > + cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>; > + }; > + > + idle-states { > + entry-method = "arm,psci"; > + > + CPU_SLEEP_0: cpu-sleep-0 { > + compatible = "arm,idle-state"; > + local-timer-stop; > + entry-latency-us = <100>; > + exit-latency-us = <80>; > + min-residency-us = <2000>; > + arm,psci-suspend-param = <0x0010000>; > + }; > + > + CLUSTER_SLEEP_0: cluster-sleep-0 { > + compatible = "arm,idle-state"; > + local-timer-stop; > + entry-latency-us = <350>; > + exit-latency-us = <80>; > + min-residency-us = <3000>; > + arm,psci-suspend-param = <0x1010000>; > + }; > }; > }; > >