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Power management and ACPI updates for 3.10-rc1

Browse source 
- ARM big.LITTLE cpufreq driver from Viresh Kumar.
 
 - exynos5440 cpufreq driver from Amit Daniel Kachhap.
 
 - cpufreq core cleanup and code consolidation from Viresh Kumar and
   Stratos Karafotis.
 
 - cpufreq scalability improvement from Nathan Zimmer.
 
 - AMD "frequency sensitivity feedback" powersave bias for the ondemand
   cpufreq governor from Jacob Shin.
 
 - cpuidle code consolidation and cleanups from Daniel Lezcano.
 
 - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.
 
 - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim,
   Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.
 
 - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
   Yasuaki Ishimatsu, and Rafael J. Wysocki.
 
 - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements
   from Rafael J. Wysocki and Andy Shevchenko.
 
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Merge tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael J Wysocki:

 - ARM big.LITTLE cpufreq driver from Viresh Kumar.

 - exynos5440 cpufreq driver from Amit Daniel Kachhap.

 - cpufreq core cleanup and code consolidation from Viresh Kumar and
   Stratos Karafotis.

 - cpufreq scalability improvement from Nathan Zimmer.

 - AMD "frequency sensitivity feedback" powersave bias for the ondemand
   cpufreq governor from Jacob Shin.

 - cpuidle code consolidation and cleanups from Daniel Lezcano.

 - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.

 - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv
   Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.

 - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
   Yasuaki Ishimatsu, and Rafael J Wysocki.

 - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from
   Rafael J Wysocki and Andy Shevchenko.

* tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits)
  cpufreq: Revert incorrect commit 5800043
  cpufreq: MAINTAINERS: Add co-maintainer
  cpuidle: add maintainer entry
  ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points
  ARM: s3c64xx: cpuidle: use init/exit common routine
  cpufreq: pxa2xx: initialize variables
  ACPI: video: correct acpi_video_bus_add error processing
  SH: cpuidle: use init/exit common routine
  ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y
  ACPI: Fix wrong parameter passed to memblock_reserve
  cpuidle: fix comment format
  pnp: use %*phC to dump small buffers
  isapnp: remove debug leftovers
  ARM: imx: cpuidle: use init/exit common routine
  ARM: davinci: cpuidle: use init/exit common routine
  ARM: kirkwood: cpuidle: use init/exit common routine
  ARM: calxeda: cpuidle: use init/exit common routine
  ARM: tegra: cpuidle: use init/exit common routine for tegra3
  ARM: tegra: cpuidle: use init/exit common routine for tegra2
  ARM: OMAP4: cpuidle: use init/exit common routine
  ...
This commit is contained in:
Linus Torvalds 2013-04-30 15:21:02 -07:00
commit 3ed1c478ef
253 changed files with 6938 additions and 4145 deletions
Download patch file Download diff file Expand all files Collapse all files

65
Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt Normal file
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@ -0,0 +1,65 @@
Generic ARM big LITTLE cpufreq driver's DT glue
-----------------------------------------------
This is DT specific glue layer for generic cpufreq driver for big LITTLE
systems.
Both required and optional properties listed below must be defined
under node /cpus/cpu@x. Where x is the first cpu inside a cluster.
FIXME: Cpus should boot in the order specified in DT and all cpus for a cluster
must be present contiguously. Generic DT driver will check only node 'x' for
cpu:x.
Required properties:
- operating-points: Refer to Documentation/devicetree/bindings/power/opp.txt
for details
Optional properties:
- clock-latency: Specify the possible maximum transition latency for clock,
in unit of nanoseconds.
Examples:
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
compatible = "arm,cortex-a15";
reg = <0>;
next-level-cache = <&L2>;
operating-points = <
/* kHz uV */
792000 1100000
396000 950000
198000 850000
>;
clock-latency = <61036>; /* two CLK32 periods */
};
cpu@1 {
compatible = "arm,cortex-a15";
reg = <1>;
next-level-cache = <&L2>;
};
cpu@100 {
compatible = "arm,cortex-a7";
reg = <100>;
next-level-cache = <&L2>;
operating-points = <
/* kHz uV */
792000 950000
396000 750000
198000 450000
>;
clock-latency = <61036>; /* two CLK32 periods */
};
cpu@101 {
compatible = "arm,cortex-a7";
reg = <101>;
next-level-cache = <&L2>;
};
};

2
Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt
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@ -32,7 +32,7 @@ cpus {
396000 950000
198000 850000
>;
transition-latency = <61036>; /* two CLK32 periods */
clock-latency = <61036>; /* two CLK32 periods */
};
cpu@1 {

28
Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt Normal file
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@ -0,0 +1,28 @@
Exynos5440 cpufreq driver
-------------------
Exynos5440 SoC cpufreq driver for CPU frequency scaling.
Required properties:
- interrupts: Interrupt to know the completion of cpu frequency change.
- operating-points: Table of frequencies and voltage CPU could be transitioned into,
in the decreasing order. Frequency should be in KHz units and voltage
should be in microvolts.
Optional properties:
- clock-latency: Clock monitor latency in microsecond.
All the required listed above must be defined under node cpufreq.
Example:
--------
cpufreq@160000 {
compatible = "samsung,exynos5440-cpufreq";
reg = <0x160000 0x1000>;
interrupts = <0 57 0>;
operating-points = <
1000000 975000
800000 925000>;
clock-latency = <100000>;
};