MIPS/loongson2_cpufreq: Fix CPU clock rate setting
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 652ed95d5f
(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: stable@vger.kernel.org
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>
This commit is contained in:
Родитель
3deff25331
Коммит
8e8acb3296
|
@ -91,6 +91,7 @@ EXPORT_SYMBOL(clk_put);
|
|||
|
||||
int clk_set_rate(struct clk *clk, unsigned long rate)
|
||||
{
|
||||
unsigned int rate_khz = rate / 1000;
|
||||
int ret = 0;
|
||||
int regval;
|
||||
int i;
|
||||
|
@ -111,10 +112,10 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
|
|||
if (loongson2_clockmod_table[i].frequency ==
|
||||
CPUFREQ_ENTRY_INVALID)
|
||||
continue;
|
||||
if (rate == loongson2_clockmod_table[i].frequency)
|
||||
if (rate_khz == loongson2_clockmod_table[i].frequency)
|
||||
break;
|
||||
}
|
||||
if (rate != loongson2_clockmod_table[i].frequency)
|
||||
if (rate_khz != loongson2_clockmod_table[i].frequency)
|
||||
return -ENOTSUPP;
|
||||
|
||||
clk->rate = rate;
|
||||
|
|
|
@ -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;
|
||||
|
|
Загрузка…
Ссылка в новой задаче