diff options
| author | Aaro Koskinen <aaro.koskinen@iki.fi> | 2014-04-03 22:24:01 +0300 |
|---|---|---|
| committer | Show Liu <show.liu@linaro.org> | 2014-06-18 12:04:21 +0800 |
| commit | 3e7e5e951917eb192825ae29eb96fcadd22518dd (patch) | |
| tree | a52232b7140b26118c0cef357007444005fbb983 /drivers/cpufreq/loongson2_cpufreq.c | |
| parent | ab7321d28a33ce265920c45fd4b65e057ffb86e0 (diff) | |
MIPS/loongson2_cpufreq: Fix CPU clock rate setting
commit 8e8acb32960f42c81b1d50deac56a2c07bb6a18a upstream.
Loongson2 has been using (incorrectly) kHz for cpu_clk rate. This has
been unnoticed, as loongson2_cpufreq was the only place where the rate
was set/get. After commit 652ed95d5fa6074b3c4ea245deb0691f1acb6656
(cpufreq: introduce cpufreq_generic_get() routine) things however broke,
and now loops_per_jiffy adjustments are incorrect (1000 times too long).
The patch fixes this by changing cpu_clk rate to Hz.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: cpufreq@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Patchwork: https://patchwork.linux-mips.org/patch/6678/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/cpufreq/loongson2_cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/loongson2_cpufreq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index 8dead6fb28e..7231967f51b 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -62,7 +62,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy, set_cpus_allowed_ptr(current, &cpus_allowed); /* setting the cpu frequency */ - clk_set_rate(policy->clk, freq); + clk_set_rate(policy->clk, freq * 1000); return 0; } @@ -92,7 +92,7 @@ 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); + ret = clk_set_rate(cpuclk, rate * 1000); if (ret) { clk_put(cpuclk); return ret; |