From: Maulik Shah <mkshah@codeaurora.org>
To: agross@kernel.org, robh+dt@kernel.org, bjorn.andersson@linaro.org
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
rnayak@codeaurora.org, ilina@codeaurora.org,
lsrao@codeaurora.org, mka@chromium.org, swboyd@chromium.org,
evgreen@chromium.org, dianders@chromium.org,
Maulik Shah <mkshah@codeaurora.org>,
devicetree@vger.kernel.org
Subject: [PATCH] arm64: dts: qcom: sc7180: Add cpuidle low power states
Date: Wed, 30 Oct 2019 09:35:18 +0530 [thread overview]
Message-ID: <1572408318-28681-2-git-send-email-mkshah@codeaurora.org> (raw)
In-Reply-To: <1572408318-28681-1-git-send-email-mkshah@codeaurora.org>
Add device bindings for cpuidle states for cpu devices.
Cc: devicetree@vger.kernel.org
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
---
arch/arm64/boot/dts/qcom/sc7180.dtsi | 78 ++++++++++++++++++++++++++++++++++++
1 file changed, 78 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index fceac50..69d5e2c 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -70,6 +70,9 @@
compatible = "arm,armv8";
reg = <0x0 0x0>;
enable-method = "psci";
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_0>;
L2_0: l2-cache {
compatible = "cache";
@@ -85,6 +88,9 @@
compatible = "arm,armv8";
reg = <0x0 0x100>;
enable-method = "psci";
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_100>;
L2_100: l2-cache {
compatible = "cache";
@@ -97,6 +103,9 @@
compatible = "arm,armv8";
reg = <0x0 0x200>;
enable-method = "psci";
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_200>;
L2_200: l2-cache {
compatible = "cache";
@@ -109,6 +118,9 @@
compatible = "arm,armv8";
reg = <0x0 0x300>;
enable-method = "psci";
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_300>;
L2_300: l2-cache {
compatible = "cache";
@@ -121,6 +133,9 @@
compatible = "arm,armv8";
reg = <0x0 0x400>;
enable-method = "psci";
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_400>;
L2_400: l2-cache {
compatible = "cache";
@@ -133,6 +148,9 @@
compatible = "arm,armv8";
reg = <0x0 0x500>;
enable-method = "psci";
+ cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+ &LITTLE_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_500>;
L2_500: l2-cache {
compatible = "cache";
@@ -145,6 +163,9 @@
compatible = "arm,armv8";
reg = <0x0 0x600>;
enable-method = "psci";
+ cpu-idle-states = <&BIG_CPU_SLEEP_0
+ &BIG_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_600>;
L2_600: l2-cache {
compatible = "cache";
@@ -157,12 +178,69 @@
compatible = "arm,armv8";
reg = <0x0 0x700>;
enable-method = "psci";
+ cpu-idle-states = <&BIG_CPU_SLEEP_0
+ &BIG_CPU_SLEEP_1
+ &CLUSTER_SLEEP_0>;
next-level-cache = <&L2_700>;
L2_700: l2-cache {
compatible = "cache";
next-level-cache = <&L3_0>;
};
};
+
+ idle-states {
+ entry-method = "psci";
+
+ LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "little-power-down";
+ arm,psci-suspend-param = <0x40000003>;
+ entry-latency-us = <350>;
+ exit-latency-us = <461>;
+ min-residency-us = <1890>;
+ local-timer-stop;
+ };
+
+ LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
+ compatible = "arm,idle-state";
+ idle-state-name = "little-rail-power-down";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <360>;
+ exit-latency-us = <531>;
+ min-residency-us = <3934>;
+ local-timer-stop;
+ };
+
+ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "big-power-down";
+ arm,psci-suspend-param = <0x40000003>;
+ entry-latency-us = <264>;
+ exit-latency-us = <621>;
+ min-residency-us = <952>;
+ local-timer-stop;
+ };
+
+ BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
+ compatible = "arm,idle-state";
+ idle-state-name = "big-rail-power-down";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <702>;
+ exit-latency-us = <1061>;
+ min-residency-us = <4488>;
+ local-timer-stop;
+ };
+
+ CLUSTER_SLEEP_0: cluster-sleep-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "cluster-power-down";
+ arm,psci-suspend-param = <0x400000F4>;
+ entry-latency-us = <3263>;
+ exit-latency-us = <6562>;
+ min-residency-us = <9987>;
+ local-timer-stop;
+ };
+ };
};
memory@80000000 {
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
next prev parent reply other threads:[~2019-10-30 4:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 4:05 arm64: dts: qcom: sc7180: Add cpuidle low power states Maulik Shah
2019-10-30 4:05 ` Maulik Shah [this message]
2019-10-30 6:56 ` [PATCH] " Sudeep Holla
2019-11-01 5:20 ` Maulik Shah
2019-11-04 21:47 ` Stephen Boyd
2020-01-21 23:44 ` Matthias Kaehlcke
2020-01-25 15:39 ` Maulik Shah
2020-02-04 5:48 ` Maulik Shah
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1572408318-28681-2-git-send-email-mkshah@codeaurora.org \
--to=mkshah@codeaurora.org \
--cc=agross@kernel.org \
--cc=bjorn.andersson@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=dianders@chromium.org \
--cc=evgreen@chromium.org \
--cc=ilina@codeaurora.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lsrao@codeaurora.org \
--cc=mka@chromium.org \
--cc=rnayak@codeaurora.org \
--cc=robh+dt@kernel.org \
--cc=swboyd@chromium.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).