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.koski...@iki.fi>
Acked-by: Viresh Kumar <viresh.ku...@linaro.org>
Cc: sta...@vger.kernel.org
---
Changes since the first version
(http://marc.info/?l=linux-kernel&m=137357177225034&w=2):
- Changed the subject prefix. I guess this should be merged through
the cpufreq/PM instead of MIPS tree?
- Added ACK from Viresh Kumar.
drivers/cpufreq/loongson2_cpufreq.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/cpufreq/loongson2_cpufreq.c
b/drivers/cpufreq/loongson2_cpufreq.c
index bb838b9..9536852 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],
--
1.8.3.2
--
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