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Merge branch 'pm-cpufreq'

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* pm-cpufreq: (55 commits)
  cpufreq / intel_pstate: Fix 32 bit build
  cpufreq: conservative: Fix typos in comments
  cpufreq: ondemand: Fix typos in comments
  cpufreq: exynos: simplify .init() for setting policy->cpus
  cpufreq: kirkwood: Add a cpufreq driver for Marvell Kirkwood SoCs
  cpufreq/x86: Add P-state driver for sandy bridge.
  cpufreq_stats: do not remove sysfs files if frequency table is not present
  cpufreq: Do not track governor name for scaling drivers with internal governors.
  cpufreq: Only call cpufreq_out_of_sync() for driver that implement cpufreq_driver.target()
  cpufreq: Retrieve current frequency from scaling drivers with internal governors
  cpufreq: Fix locking issues
  cpufreq: Create a macro for unlock_policy_rwsem{read,write}
  cpufreq: Remove unused HOTPLUG_CPU code
  cpufreq: governors: Fix WARN_ON() for multi-policy platforms
  cpufreq: ondemand: Replace down_differential tuner with adj_up_threshold
  cpufreq / stats: Get rid of CPUFREQ_STATDEVICE_ATTR
  cpufreq: Don't check cpu_online(policy->cpu)
  cpufreq: add imx6q-cpufreq driver
  cpufreq: Don't remove sysfs link for policy->cpu
  cpufreq: Remove unnecessary use of policy->shared_type
  ...
This commit is contained in:
Rafael J. Wysocki
2013-02-15 13:59:07 +01:00
parent 95ecb40769 191e5edf96
commit 4419fbd4b4
41 changed files with 2407 additions and 481 deletions
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6
Documentation/cpu-freq/cpu-drivers.txt
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@@ -111,6 +111,12 @@ policy->governor must contain the "default policy" for
For setting some of these values, the frequency table helpers might be
helpful. See the section 2 for more information on them.
SMP systems normally have same clock source for a group of cpus. For these the
.init() would be called only once for the first online cpu. Here the .init()
routine must initialize policy->cpus with mask of all possible cpus (Online +
Offline) that share the clock. Then the core would copy this mask onto
policy->related_cpus and will reset policy->cpus to carry only online cpus.
1.3 verify
------------

8
Documentation/cpu-freq/user-guide.txt
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@@ -190,11 +190,11 @@ scaling_max_freq show the current "policy limits" (in
first set scaling_max_freq, then
scaling_min_freq.
affected_cpus : List of CPUs that require software coordination
of frequency.
affected_cpus : List of Online CPUs that require software
coordination of frequency.
related_cpus : List of CPUs that need some sort of frequency
coordination, whether software or hardware.
related_cpus : List of Online + Offline CPUs that need software
coordination of frequency.
scaling_driver : Hardware driver for cpufreq.

27
Documentation/devicetree/bindings/arm/kirkwood.txt Normal file
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@@ -0,0 +1,27 @@
Marvell Kirkwood Platforms Device Tree Bindings
-----------------------------------------------
Boards with a SoC of the Marvell Kirkwood
shall have the following property:
Required root node property:
compatible: must contain "marvell,kirkwood";
In order to support the kirkwood cpufreq driver, there must be a node
cpus/cpu@0 with three clocks, "cpu_clk", "ddrclk" and "powersave",
where the "powersave" clock is a gating clock used to switch the CPU
between the "cpu_clk" and the "ddrclk".
Example:
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "marvell,sheeva-88SV131";
clocks = <&core_clk 1>, <&core_clk 3>, <&gate_clk 11>;
clock-names = "cpu_clk", "ddrclk", "powersave";
};