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Message-ID: <20240702152737.1184244-1-chenhuacai@loongson.cn>
Date: Tue,  2 Jul 2024 23:27:35 +0800
From: Huacai Chen <chenhuacai@...ngson.cn>
To: "Rafael J . Wysocki" <rafael@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Huacai Chen <chenhuacai@...nel.org>
Cc: loongarch@...ts.linux.dev,
	linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Xuerui Wang <kernel@...0n.name>,
	Jiaxun Yang <jiaxun.yang@...goat.com>,
	Huacai Chen <chenhuacai@...ngson.cn>
Subject: [PATCH V2 0/2] LoongArch: Add Loongson-3 CPUFreq driver support

This series add architectural preparation and CPUFreq driver for
Loongson-3 (based on LoongArch).

Some of LoongArch processors support DVFS, their IOCSR.FEATURES has
IOCSRF_FREQSCALE set. And they has a micro-core in the package called
SMC (System Management Controller) to scale frequency, voltage, etc.

V1 -> V2:
1, Use module_platform_driver() instead of module_init()/module_exit();
2, Move the lock protection into do_service_request();
3, Add light-weight hotplug support with help of online()/offline() callbacks;
4, Simplify loongson3_freq_data by removing cur_cpu_freq;
5, Remove unneeded cpu_online() checking.

Huacai Chen(2):
 LoongArch: Add architectural preparation for CPUFreq.
 cpufreq: Add Loongson-3 CPUFreq driver support.

Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
---
2.27.0


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