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| author |   Sudeep Holla <Sudeep.Holla@arm.com> | 2016-05-03 15:05:05 +0100 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-05-05 01:40:04 +0200 |
| commit | d9975b0b079c2708d39c01dad882c91a7a5a348f (patch) | |
| tree | 0d3db0d40e747d5d74aff10e3ac90c3a33dc3a20 /drivers/cpufreq/vexpress-spc-cpufreq.c | |
| parent | Merge branch 'pm-opp' into pm-cpufreq (diff) | |
| download | linux-dev-d9975b0b079c2708d39c01dad882c91a7a5a348f.tar.xz linux-dev-d9975b0b079c2708d39c01dad882c91a7a5a348f.zip | |
cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
Currently when performing random CPU hot-plugs and suspend-to-ram(S2R)
on systems using arm_big_little cpufreq driver, we get warnings similar
to something like below:
cpu cpu1: _opp_add: duplicate OPPs detected. Existing: freq: 600000000,
volt: 800000, enabled: 1. New: freq: 600000000, volt: 800000, enabled: 1
This is mainly because the OPPs for the shared cpus are not set. We can
just use dev_pm_opp_of_cpumask_add_table in case the OPPs are obtained
from DT(arm_big_little_dt.c) or use dev_pm_opp_set_sharing_cpus if the
OPPs are obtained by other means like firmware(e.g. scpi-cpufreq.c)
Also now that the generic dev_pm_opp{,_of}_cpumask_remove_table can
handle removal of opp table and entries for all associated CPUs, we can
re-use dev_pm_opp{,_of}_cpumask_remove_table as free_opp_table in
cpufreq_arm_bL_ops.
This patch makes necessary changes to reuse the generic OPP functions for
{init,free}_opp_table and thereby eliminating the warnings.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/vexpress-spc-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/vexpress-spc-cpufreq.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/cpufreq/vexpress-spc-cpufreq.c b/drivers/cpufreq/vexpress-spc-cpufreq.c index 433e93fd4900..87e5bdc5ec74 100644 --- a/drivers/cpufreq/vexpress-spc-cpufreq.c +++ b/drivers/cpufreq/vexpress-spc-cpufreq.c @@ -18,6 +18,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/cpu.h> #include <linux/cpufreq.h> #include <linux/module.h> #include <linux/platform_device.h> @@ -26,8 +27,9 @@ #include "arm_big_little.h" -static int ve_spc_init_opp_table(struct device *cpu_dev) +static int ve_spc_init_opp_table(const struct cpumask *cpumask) { + struct device *cpu_dev = get_cpu_device(cpumask_first(cpumask)); /* * platform specific SPC code must initialise the opp table * so just check if the OPP count is non-zero |