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| author | Aaro Koskinen <aaro.koskinen@iki.fi> | 2013-08-05 21:27:12 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-08-07 22:25:06 +0200 |
| commit | f54fe64d14dff3df6d45a48115d248a82557811f (patch) | |
| tree | a0115b281230dbb0a1c3d50e95b81c64264e63c9 /drivers/cpufreq/loongson2_cpufreq.c | |
| parent | c095ba7224d8edc71dcef0d655911399a8bd4a3f (diff) | |
| download | linux-stable-f54fe64d14dff3df6d45a48115d248a82557811f.tar.gz linux-stable-f54fe64d14dff3df6d45a48115d248a82557811f.tar.bz2 linux-stable-f54fe64d14dff3df6d45a48115d248a82557811f.zip | |
cpufreq: loongson2: fix regression related to clock management
Commit 42913c799 (MIPS: Loongson2: Use clk API instead of direct
dereferences) broke the cpufreq functionality on Loongson2 boards:
clk_set_rate() is called before the CPU frequency table is
initialized, and therefore will always fail.
Fix by moving the clk_set_rate() after the table initialization.
Tested on Lemote FuLoong mini-PC.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.9+ <stable@vger.kernel.org> # 3.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/loongson2_cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/loongson2_cpufreq.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index bb838b985077..9536852c504a 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -118,11 +118,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) clk_put(cpuclk); return -EINVAL; } - ret = clk_set_rate(cpuclk, rate); - if (ret) { - clk_put(cpuclk); - return ret; - } /* clock table init */ for (i = 2; @@ -130,6 +125,12 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) i++) loongson2_clockmod_table[i].frequency = (rate * i) / 8; + ret = clk_set_rate(cpuclk, rate); + if (ret) { + clk_put(cpuclk); + return ret; + } + policy->cur = loongson2_cpufreq_get(policy->cpu); cpufreq_frequency_table_get_attr(&loongson2_clockmod_table[0], |