linux.git/arch/sh/kernel/cpufreq.c, branch master

cpufreq: sh: move cpufreq driver to drivers/cpufreq

2013-04-10T11:19:25+00:00

This patch moves cpufreq driver of SUPERH architecture to drivers/cpufreq.

Signed-off-by: Viresh Kumar 
Acked-by: Paul Mundt 
Signed-off-by: Rafael J. Wysocki

cpufreq: drivers: Remove unnecessary assignments of policy-> members

2013-04-02T13:26:32+00:00

Some assignments of policy-> min/max/cur/cpuinfo.min_freq/cpuinfo.max_freq
aren't required as part of it is done by cpufreq driver or cpufreq core.

Remove them.

At some places we merge multiple lines together too.

Signed-off-by: Viresh Kumar 
Acked-by: Sekhar Nori 
Signed-off-by: Rafael J. Wysocki

cpufreq: Don't check if cpu is online/offline for cpufreq callbacks

2013-04-02T13:26:32+00:00

cpufreq layer doesn't call cpufreq driver's callback for any offline
CPU and so checking that isn't useful.

Lets get rid of it.

Signed-off-by: Viresh Kumar 
Acked-by: David S. Miller 
Signed-off-by: Rafael J. Wysocki

cpufreq: Notify all policy->cpus in cpufreq_notify_transition()

2013-04-02T13:24:00+00:00

policy->cpus contains all online cpus that have single shared clock line. And
their frequencies are always updated together.

Many SMP system's cpufreq drivers take care of this in individual drivers but
the best place for this code is in cpufreq core.

This patch modifies cpufreq_notify_transition() to notify frequency change for
all cpus in policy->cpus and hence updates all users of this API.

Signed-off-by: Viresh Kumar 
Acked-by: Stephen Warren 
Tested-by: Stephen Warren 
Signed-off-by: Rafael J. Wysocki

sh: cpufreq: Wire up scaling_available_freqs support.

2012-01-27T11:45:24+00:00

scaling_available_freqs is provided generically for drivers that are
using frequency table based rounding. This will be optional for our case,
but the generic code already takes that in to consideration, so we can
simply wire it up outright.

Signed-off-by: Paul Mundt

sh: cpufreq: notify about rate rounding fallback.

2012-01-27T11:43:14+00:00

The general case for platforms that support the clock framework fully
will be rate table rounding, while others will have to fall back on much
coarser general rate rounding. Notify about it during boot so the limited
functionality for the given subtype is appropriately noted.

Signed-off-by: Paul Mundt

sh: cpufreq: Support CPU clock frequency table.

2012-01-27T11:18:24+00:00

This adds support for the frequency table provided by the clock framework
under the struct clk definition (if available). In cases where no table
is generated or otherwise supported, we fall back on coarse grained
scaling via clock framework rounding, as before.

Signed-off-by: Paul Mundt

sh: cpufreq: struct device lookup from CPU topology.

2012-01-27T10:44:49+00:00

The struct device pointer associated with the CPU we're on can be fetched
via the topology information. Tie this in to localize the CPU clock
lookup. While we're at it, tidy up some of the debug/info printing
notices too.

Signed-off-by: Paul Mundt

sh: cpufreq: percpu struct clk accounting.

2012-01-27T08:49:16+00:00

At the moment there is simply a global struct clk pointer for the CPU
frequency, which is fundamentally broken in the SMP case. This moves to
fix it up by switching to a percpu case.

Signed-off-by: Paul Mundt

arch/sh/kernel: Use set_cpus_allowed_ptr

2010-03-29T02:40:37+00:00

Use set_cpus_allowed_ptr rather than set_cpus_allowed.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression E1,E2;
@@

- set_cpus_allowed(E1, cpumask_of_cpu(E2))
+ set_cpus_allowed_ptr(E1, cpumask_of(E2))

@@
expression E;
identifier I;
@@

- set_cpus_allowed(E, I)
+ set_cpus_allowed_ptr(E, &I)
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Paul Mundt