If "/cpus" node isn't found or "clock-latency" isn't defined we are returning
error currently. Lets return CPUFREQ_ETERNAL instead, so that we don't fail.
Flag appropriate messages to user in such cases.
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/cpufreq/arm_big_little_dt.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index d5ae4d2..173ed05 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -66,8 +66,8 @@ static int dt_get_transition_latency(struct device *cpu_dev)
parent = of_find_node_by_path("/cpus");
if (!parent) {
- pr_err("failed to find OF /cpus\n");
- return -ENOENT;
+ pr_info("Failed to find OF /cpus. Use CPUFREQ_ETERNAL transition latency\n");
+ return CPUFREQ_ETERNAL;
}
for_each_child_of_node(parent, np) {
@@ -81,7 +81,8 @@ static int dt_get_transition_latency(struct device *cpu_dev)
return transition_latency;
}
- return -ENODEV;
+ pr_info("clock-latency isn't found, use CPUFREQ_ETERNAL transition latency\n");
+ return CPUFREQ_ETERNAL;
}
static struct cpufreq_arm_bL_ops dt_bL_ops = {
--
1.7.12.rc2.18.g61b472e
--
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