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| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2013-02-25 18:22:37 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-06-05 13:51:29 +0200 |
| commit | 0ca684365547cd5f214b5739568dae3df5d6cec9 (patch) | |
| tree | 507c96ddad126a40e156548d1f9de255eb6421b0 | |
| parent | cpufreq: protect 'policy->cpus' from offlining during __gov_queue_work() (diff) | |
| download | linux-0ca684365547cd5f214b5739568dae3df5d6cec9.tar.xz linux-0ca684365547cd5f214b5739568dae3df5d6cec9.zip | |
cpufreq: cpufreq-cpu0: use the exact frequency for clk_set_rate()
clk_set_rate() isn't supposed to accept approximate frequencies, instead
a supported frequency should be obtained from clk_round_rate() and then
used to set the clock.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/cpufreq/cpufreq-cpu0.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index a64eb8b70444..ad1fde277661 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -45,7 +45,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, struct cpufreq_freqs freqs; struct opp *opp; unsigned long volt = 0, volt_old = 0, tol = 0; - long freq_Hz; + long freq_Hz, freq_exact; unsigned int index; int ret; @@ -60,6 +60,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000); if (freq_Hz < 0) freq_Hz = freq_table[index].frequency * 1000; + freq_exact = freq_Hz; freqs.new = freq_Hz / 1000; freqs.old = clk_get_rate(cpu_clk) / 1000; @@ -98,7 +99,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, } } - ret = clk_set_rate(cpu_clk, freqs.new * 1000); + ret = clk_set_rate(cpu_clk, freq_exact); if (ret) { pr_err("failed to set clock rate: %d\n", ret); if (cpu_reg) |