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cpufreq: Return index from cpufreq_frequency_table_target()

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This routine can't fail unless the frequency table is invalid and
doesn't contain any valid entries.

Make it return the index and WARN() in case it is used for an invalid
table.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar
2016-06-03 10:58:51 +05:30
committed by Rafael J. Wysocki
parent 2372784542
commit d218ed7739
9 changed files with 37 additions and 61 deletions
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7
Documentation/cpu-freq/cpu-drivers.txt
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@@ -245,12 +245,11 @@ policy->max, and all other criteria are met. This is helpful for the
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation,
unsigned int *index);
unsigned int relation);
is the corresponding frequency table helper for the ->target
stage. Just pass the values to this function, and the unsigned int
index returns the number of the frequency table entry which contains
stage. Just pass the values to this function, and this function
returns the number of the frequency table entry which contains
the frequency the CPU shall be set to.
The following macros can be used as iterators over cpufreq_frequency_table: