From: Abel Vesa <abelvesa@gmail.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Marc Zyngier <marc.zyngier@arm.com>,
Lucas Stach <l.stach@pengutronix.de>, Bai Ping <ping.bai@nxp.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Leonard Crestez <leonard.crestez@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Carlo Caione <ccaione@baylibre.com>
Subject: [RFC 2/2] arm64: dts: imx8mq: Add idle states and gpcv2 wake_request broken property
Date: Mon, 10 Jun 2019 15:13:46 +0300 [thread overview]
Message-ID: <20190610121346.15779-3-abel.vesa@nxp.com> (raw)
In-Reply-To: <20190610121346.15779-1-abel.vesa@nxp.com>
Add the cpu-sleep idle state with all the necessary parameters and also add
the cpu-idle-states to the cpu nodes.
The 'broken-wake-request-signals' property is used to let the irq-imx-gpcv2
driver know that the wake request signals from GIC are not linked to the
GPC at all and, therefore, the driver should make use of the dedicated
workaround to explicitly wake up the target core on every IPI.
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 d09b808..7217138 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -103,6 +103,7 @@
#cooling-cells = <2>;
nvmem-cells = <&cpu_speed_grade>;
nvmem-cell-names = "speed_grade";
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_1: cpu@1 {
@@ -115,6 +116,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_2: cpu@2 {
@@ -127,6 +129,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_3: cpu@3 {
@@ -139,11 +142,27 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SLEEP>;
};
A53_L2: l2-cache0 {
compatible = "cache";
};
+
+ idle-states {
+ entry-method = "psci";
+
+ CPU_SLEEP: cpu-sleep {
+ compatible = "arm,idle-state";
+ arm,psci-suspend-param = <0x0010033>;
+ local-timer-stop;
+ entry-latency-us = <1000>;
+ exit-latency-us = <700>;
+ min-residency-us = <2700>;
+ wakeup-latency-us = <1500>;
+ };
+ };
+
};
a53_opp_table: opp-table {
@@ -502,6 +521,7 @@
reg = <0x303a0000 0x10000>;
interrupt-parent = <&gic>;
interrupt-controller;
+ broken-wake-request-signals;
#interrupt-cells = <3>;
pgc {
--
2.7.4
next prev parent reply other threads:[~2019-06-10 12:13 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 12:13 [RFC 0/2] Add workaround for core wake-up on IPI for i.MX8MQ Abel Vesa
2019-06-10 12:13 ` [RFC 1/2] irqchip: irq-imx-gpcv2: Add workaround for i.MX8MQ ERR11171 Abel Vesa
2019-06-10 12:38 ` Leonard Crestez
2019-06-10 13:24 ` Marc Zyngier
2019-06-10 13:38 ` Abel Vesa
2019-06-10 13:51 ` Marc Zyngier
2019-06-10 14:12 ` Abel Vesa
2019-06-10 14:28 ` Marc Zyngier
2019-06-10 12:13 ` Abel Vesa [this message]
2019-06-10 13:19 ` [RFC 0/2] Add workaround for core wake-up on IPI for i.MX8MQ Mark Rutland
2019-06-10 13:29 ` Abel Vesa
2019-06-10 13:39 ` Marc Zyngier
2019-06-10 13:55 ` Abel Vesa
2019-06-10 14:07 ` Marc Zyngier
2019-06-10 14:32 ` Leonard Crestez
2019-06-10 14:52 ` Marc Zyngier
2019-06-12 7:14 ` Thomas Gleixner
2019-06-12 7:35 ` Marc Zyngier
2019-06-12 7:37 ` Thomas Gleixner
2019-06-23 11:47 ` Martin Kepplinger
2019-06-28 8:54 ` Abel Vesa
2019-07-02 6:47 ` Martin Kepplinger
2019-07-02 11:33 ` Abel Vesa
2019-07-08 7:54 ` Martin Kepplinger
2019-07-08 12:20 ` Martin Kepplinger
2019-10-30 6:11 ` Martin Kepplinger
2019-10-30 7:33 ` Martin Kepplinger
2019-10-30 8:08 ` Abel Vesa
2019-10-30 8:14 ` Martin Kepplinger
2019-11-04 8:49 ` Martin Kepplinger
2019-11-04 10:35 ` Abel Vesa
2019-11-06 11:59 ` Martin Kepplinger
2019-11-06 22:36 ` Leonard Crestez
2019-11-08 11:21 ` Martin Kepplinger
2019-11-08 11:50 ` Abel Vesa
2019-11-08 14:17 ` Martin Kepplinger
2019-11-11 7:54 ` Abel Vesa
2019-11-25 17:23 ` Martin Kepplinger
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