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@linaro.org --- 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 = {