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authorSudeep Holla <Sudeep.Holla@arm.com>2016-05-03 17:05:05 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-05-05 02:40:04 +0300
commitd9975b0b079c2708d39c01dad882c91a7a5a348f (patch)
tree0d3db0d40e747d5d74aff10e3ac90c3a33dc3a20 /drivers/cpufreq/vexpress-spc-cpufreq.c
parent28ed05732a8fdd9cd17c0c46fc407c737f45aa5b (diff)
downloadlinux-d9975b0b079c2708d39c01dad882c91a7a5a348f.tar.xz
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.c4
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