From: Rudraksha Gupta via B4 Relay <devnull+guptarud.gmail.com@kernel.org>
To: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Andy Gross <agross@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Rudraksha Gupta <guptarud@gmail.com>
Subject: [PATCH 0/3] Add cpufreq to MSM8960
Date: Thu, 14 May 2026 00:03:59 -0700 [thread overview]
Message-ID: <20260514-expressatt_cpufreq-v1-0-487fd2d78859@gmail.com> (raw)
Similar to APQ8064, cpufreq is enabled with this small patch series.
Tests:
// Show available frequencies
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
384000 486000 594000 702000 810000 918000 1026000 1080000 1134000 1242000 1350000 1512000
$ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_available_frequencies
384000 486000 594000 702000 810000 918000 1026000 1080000 1134000 1242000 1350000 1512000
// Show current governor
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
schedutil
$ cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
schedutil
// set low freq
$ echo 384000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
384000
// set mid freq
$ echo 1026000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
1026000
// set max freq
$ echo 1512000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
1512000
// set low freq
$ echo 384000 > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
384000
// set mid freq
$ echo 1026000 > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
1026000
// set max freq
$ echo 1512000 > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
1512000
// SAW2 regulators
$ cat /sys/class/regulator/regulator.*/microvolts 2>/dev/null | head -2
1200000
1150000
Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
---
Rudraksha Gupta (3):
dt-bindings: soc: qcom: saw2: Rename MSM8960 SAW2 compatible to v1.1
soc: qcom: spm: Add MSM8960 SAW2 CPU support
ARM: dts: qcom: msm8960: Add CPU frequency scaling support
.../devicetree/bindings/soc/qcom/qcom,saw2.yaml | 2 +-
arch/arm/boot/dts/qcom/qcom-msm8960.dtsi | 133 ++++++++++++++++++++-
drivers/soc/qcom/spm.c | 20 +++-
3 files changed, 151 insertions(+), 4 deletions(-)
---
base-commit: 3131ff5a117498bb4b9db3a238bb311cbf8383ce
change-id: 20260513-expressatt_cpufreq-66638ba8d156
prerequisite-message-id: <20260503-expressatt-touchkey-v1-1-f7dd5db64e0d@gmail.com>
prerequisite-patch-id: 8de4de7909722ccaf385c4224f25a623eaa72c28
prerequisite-message-id: <20260503-expressatt_camera_flash-v5-0-95524506a799@gmail.com>
prerequisite-patch-id: ab8b8d87fd2d518c4c5b5dace3f22238d1abbe49
prerequisite-patch-id: a6ab585bad167db61d13b10c3912018ec94cdfd9
prerequisite-patch-id: 7ef7df61e7ef6476a35811d765f522f793d9ecc7
prerequisite-message-id: <20260401-expressatt_fuel_guage-v3-0-9674cfc0b5a2@gmail.com>
prerequisite-patch-id: 27c37aa51fe76043b4998137d106689ed5ae6c91
prerequisite-patch-id: e477ee37abf167c55659f5e591b070b176187ca7
prerequisite-patch-id: 9680b63831f2be63607bff2175639c1987af5e85
prerequisite-patch-id: ee275dc3aec6159072d0a9efb66d18468a72ad57
Best regards,
--
Rudraksha Gupta <guptarud@gmail.com>
next reply other threads:[~2026-05-14 7:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-14 7:03 Rudraksha Gupta via B4 Relay [this message]
2026-05-14 7:04 ` [PATCH 1/3] dt-bindings: soc: qcom: saw2: Rename MSM8960 SAW2 compatible to v1.1 Rudraksha Gupta via B4 Relay
2026-05-14 7:04 ` [PATCH 2/3] soc: qcom: spm: Add MSM8960 SAW2 CPU support Rudraksha Gupta via B4 Relay
2026-05-14 7:04 ` [PATCH 3/3] ARM: dts: qcom: msm8960: Add CPU frequency scaling support Rudraksha Gupta via B4 Relay
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