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Message-Id: <20230126103526.417039-7-angelogioacchino.delregno@collabora.com>
Date: Thu, 26 Jan 2023 11:35:26 +0100
From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
To: matthias.bgg@...il.com
Cc: robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
seiya.wang@...iatek.com, tinghan.shen@...iatek.com,
allen-kh.cheng@...iatek.com, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
Subject: [PATCH 6/6] arm64: dts: mt8192: Change idle states names to reflect actual function
The names of the idle states are misleading being this a single cluster
SoC, a cluster-sleep idle state is impossible!
After some research in ATF, it emerged that the cpu-sleep state is in
reality putting CPUs in retention state, while the cluster-sleep one
is turning off the CPUs.
Summarizing renaming:
- cpu-sleep -> cpu-retention
- cluster-sleep -> cpu-off
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
arch/arm64/boot/dts/mediatek/mt8192.dtsi | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index eb46cbadd310..87b91c8feaf9 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -62,7 +62,7 @@ cpu0: cpu@0 {
reg = <0x000>;
enable-method = "psci";
clock-frequency = <1701000000>;
- cpu-idle-states = <&cpu_sleep_l &cluster_sleep_l>;
+ cpu-idle-states = <&cpu_ret_l &cpu_off_l>;
i-cache-size = <32768>;
i-cache-line-size = <64>;
i-cache-sets = <128>;
@@ -79,7 +79,7 @@ cpu1: cpu@100 {
reg = <0x100>;
enable-method = "psci";
clock-frequency = <1701000000>;
- cpu-idle-states = <&cpu_sleep_l &cluster_sleep_l>;
+ cpu-idle-states = <&cpu_ret_l &cpu_off_l>;
i-cache-size = <32768>;
i-cache-line-size = <64>;
i-cache-sets = <128>;
@@ -96,7 +96,7 @@ cpu2: cpu@200 {
reg = <0x200>;
enable-method = "psci";
clock-frequency = <1701000000>;
- cpu-idle-states = <&cpu_sleep_l &cluster_sleep_l>;
+ cpu-idle-states = <&cpu_ret_l &cpu_off_l>;
i-cache-size = <32768>;
i-cache-line-size = <64>;
i-cache-sets = <128>;
@@ -113,7 +113,7 @@ cpu3: cpu@300 {
reg = <0x300>;
enable-method = "psci";
clock-frequency = <1701000000>;
- cpu-idle-states = <&cpu_sleep_l &cluster_sleep_l>;
+ cpu-idle-states = <&cpu_ret_l &cpu_off_l>;
i-cache-size = <32768>;
i-cache-line-size = <64>;
i-cache-sets = <128>;
@@ -130,7 +130,7 @@ cpu4: cpu@400 {
reg = <0x400>;
enable-method = "psci";
clock-frequency = <2171000000>;
- cpu-idle-states = <&cpu_sleep_b &cluster_sleep_b>;
+ cpu-idle-states = <&cpu_ret_b &cpu_off_b>;
i-cache-size = <65536>;
i-cache-line-size = <64>;
i-cache-sets = <256>;
@@ -147,7 +147,7 @@ cpu5: cpu@500 {
reg = <0x500>;
enable-method = "psci";
clock-frequency = <2171000000>;
- cpu-idle-states = <&cpu_sleep_b &cluster_sleep_b>;
+ cpu-idle-states = <&cpu_ret_b &cpu_off_b>;
i-cache-size = <65536>;
i-cache-line-size = <64>;
i-cache-sets = <256>;
@@ -164,7 +164,7 @@ cpu6: cpu@600 {
reg = <0x600>;
enable-method = "psci";
clock-frequency = <2171000000>;
- cpu-idle-states = <&cpu_sleep_b &cluster_sleep_b>;
+ cpu-idle-states = <&cpu_ret_b &cpu_off_b>;
i-cache-size = <65536>;
i-cache-line-size = <64>;
i-cache-sets = <256>;
@@ -181,7 +181,7 @@ cpu7: cpu@700 {
reg = <0x700>;
enable-method = "psci";
clock-frequency = <2171000000>;
- cpu-idle-states = <&cpu_sleep_b &cluster_sleep_b>;
+ cpu-idle-states = <&cpu_ret_b &cpu_off_b>;
i-cache-size = <65536>;
i-cache-line-size = <64>;
i-cache-sets = <256>;
@@ -250,7 +250,7 @@ l3_0: l3-cache {
idle-states {
entry-method = "psci";
- cpu_sleep_l: cpu-sleep-l {
+ cpu_ret_l: cpu-retention-l {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x00010001>;
local-timer-stop;
@@ -258,7 +258,7 @@ cpu_sleep_l: cpu-sleep-l {
exit-latency-us = <140>;
min-residency-us = <780>;
};
- cpu_sleep_b: cpu-sleep-b {
+ cpu_ret_b: cpu-retention-b {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x00010001>;
local-timer-stop;
@@ -266,7 +266,7 @@ cpu_sleep_b: cpu-sleep-b {
exit-latency-us = <145>;
min-residency-us = <720>;
};
- cluster_sleep_l: cluster-sleep-l {
+ cpu_off_l: cpu-off-l {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x01010002>;
local-timer-stop;
@@ -274,7 +274,7 @@ cluster_sleep_l: cluster-sleep-l {
exit-latency-us = <155>;
min-residency-us = <860>;
};
- cluster_sleep_b: cluster-sleep-b {
+ cpu_off_b: cpu-off-b {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x01010002>;
local-timer-stop;
--
2.39.0
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