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authorSudeep Holla <Sudeep.Holla@arm.com>2016-05-03 15:05:05 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-05-05 01:40:04 +0200
commitd9975b0b079c2708d39c01dad882c91a7a5a348f (patch)
tree0d3db0d40e747d5d74aff10e3ac90c3a33dc3a20 /drivers/cpufreq/arm_big_little.h
parent28ed05732a8fdd9cd17c0c46fc407c737f45aa5b (diff)
downloadlinux-d9975b0b079c2708d39c01dad882c91a7a5a348f.tar.bz2
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/arm_big_little.h')
-rw-r--r--drivers/cpufreq/arm_big_little.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index b88889d9387e..184d7c3a112a 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -30,11 +30,11 @@ struct cpufreq_arm_bL_ops {
* This must set opp table for cpu_dev in a similar way as done by
* dev_pm_opp_of_add_table().
*/
- int (*init_opp_table)(struct device *cpu_dev);
+ int (*init_opp_table)(const struct cpumask *cpumask);
/* Optional */
int (*get_transition_latency)(struct device *cpu_dev);
- void (*free_opp_table)(struct device *cpu_dev);
+ void (*free_opp_table)(const struct cpumask *cpumask);
};
int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);