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Linux 3.9 Supports Lightweight Suspend, New PM Features

Linux Kernel

Published on 20 February 2013 07:40 PM EST
Written by Michael Larabel in Linux Kernel
2 Comments

The feature pull for ACPI and power management updates to be introduced in the Linux 3.9 kernel were merged.

This merge does incorporate the recently talked about fixes/improvements and other power-related updates. Notable to this merge is the new Intel P-State Linux driver.

To this 3.9 feature merge is also ACPI power resource handling and device PM updates, support for the Intel Lynxpoint LPSS, a cpuidle driver update including Intel Haswell support, a cpufreq driver for Marvell Kirkwood SoCs, cpufreq support for Calxeda Highbank ARM processors, a cpufreq driver for the Freescale i.MX6Q SoC, and support for lightweight suspend. There's also fixes and minor improvements scattered throughout for cpuidle, ACPI, and ACPICA.

In regards to the lightweight suspend support, the new Linux kernel feature is talked about within Intel Driver Works On "PM Suspend Freeze" Support.

The merge to the mainline Linux kernel code-base of these ACPI/PM updates happened earlier today.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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