From: Abel Vesa <abel.vesa@nxp.com>
To: Sudeep Holla <sudeep.holla@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Rob Herring <robh@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <kernel@pengutronix.de>,
"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Fabio Estevam <fabio.estevam@nxp.com>,
Lucas Stach <l.stach@pengutronix.de>,
Aisheng Dong <aisheng.dong@nxp.com>
Cc: dl-linux-imx <linux-imx@nxp.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
Abel Vesa <abel.vesa@nxp.com>
Subject: [RFC 7/7] arm64: dts: imx8mq: Add cpu-sleep state with poke wake-up enabled
Date: Wed, 27 Mar 2019 13:21:18 +0000 [thread overview]
Message-ID: <1553692845-20983-8-git-send-email-abel.vesa@nxp.com> (raw)
In-Reply-To: <1553692845-20983-1-git-send-email-abel.vesa@nxp.com>
Add the idle state cpu-sleep to each core. This idle state
makes use of 'local-wakeup-poke' property which basically tells
the cpuidle-arm driver to enable the poking for this state.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
---
arch/arm64/boot/dts/freescale/imx8mq.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 230f198..8b7303d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -84,6 +84,22 @@
#address-cells = <1>;
#size-cells = <0>;
+ idle-states {
+ entry-method = "psci";
+
+ CPU_SLEEP: cpu-sleep {
+ compatible = "arm,idle-state";
+ arm,psci-suspend-param = <0x0010033>;
+ local-timer-stop;
+ local-wakeup-poke;
+ entry-latency-us = <1000>;
+ exit-latency-us = <700>;
+ min-residency-us = <2700>;
+ wakeup-latency-us = <1500>;
+ };
+ };
+
+
A53_0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53";
@@ -94,6 +110,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_1: cpu@1 {
@@ -106,6 +123,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_2: cpu@2 {
@@ -118,6 +136,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_3: cpu@3 {
@@ -130,6 +149,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_L2: l2-cache0 {
--
2.7.4
next prev parent reply other threads:[~2019-03-27 13:21 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-27 13:21 [RFC 0/7] cpuidle: Add poking mechanism to support non-IPI wakeup Abel Vesa
2019-03-27 13:21 ` [RFC 1/7] sched: idle: Add sched get idle state helper Abel Vesa
2019-03-27 13:21 ` [RFC 2/7] cpuidle: Add cpu poke support Abel Vesa
2019-03-27 13:21 ` [RFC 3/7] smp: Poke the cores before requesting IPI Abel Vesa
2019-03-27 13:21 ` [RFC 4/7] psci: Add cpu_poke ops to support core poking Abel Vesa
2019-03-27 13:21 ` [RFC 5/7] cpuidle-arm: Add ops to support poke alonside enter Abel Vesa
2019-03-27 13:21 ` [RFC 6/7] cpuidle-arm: Add arm64 wake helper for cpu_poke op Abel Vesa
2019-03-27 13:21 ` Abel Vesa [this message]
2019-03-27 15:44 ` [RFC 0/7] cpuidle: Add poking mechanism to support non-IPI wakeup Lucas Stach
2019-03-27 15:57 ` Marc Zyngier
2019-03-27 16:06 ` Lucas Stach
2019-03-27 17:00 ` Leonard Crestez
2019-03-27 17:11 ` Lucas Stach
2019-03-27 18:13 ` Marc Zyngier
2019-03-28 11:21 ` Aisheng Dong
2019-03-29 9:11 ` Richard Zhu
2019-03-27 17:45 ` Marc Zyngier
2019-03-27 17:55 ` Lucas Stach
2019-03-28 11:27 ` Aisheng Dong
2019-03-27 18:40 ` Leonard Crestez
2019-03-28 10:35 ` Marc Zyngier
2019-03-28 10:36 ` Rafael J. Wysocki
2019-03-28 11:55 ` Aisheng Dong
2019-03-28 10:45 ` Lorenzo Pieralisi
2019-11-06 20:14 ` Florian Fainelli
2019-11-06 21:31 ` Leonard Crestez
2019-11-06 22:10 ` Florian Fainelli
2019-11-06 22:47 ` Leonard Crestez
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