linux-kernel - [PATCH 6/6] cpufreq: arm_big_little: Make ->get_transition

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Date:   Thu, 29 Jun 2017 16:29:09 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Sudeep Holla <sudeep.holla@....com>
Cc:     linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 6/6] cpufreq: arm_big_little: Make ->get_transition_latency() mandatory

All users of arm_big_little driver are defining it and there is no need
to keep it optional. Make it mandatory.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/cpufreq/arm_big_little.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 418042201e6d..d1eb2a53b61f 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -483,11 +483,8 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
 		return ret;
 	}
 
-	if (arm_bL_ops->get_transition_latency)
-		policy->cpuinfo.transition_latency =
-			arm_bL_ops->get_transition_latency(cpu_dev);
-	else
-		policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+	policy->cpuinfo.transition_latency =
+				arm_bL_ops->get_transition_latency(cpu_dev);
 
 	if (is_bL_switching_enabled())
 		per_cpu(cpu_last_req_freq, policy->cpu) = clk_get_cpu_rate(policy->cpu);
@@ -622,7 +619,8 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
 		return -EBUSY;
 	}
 
-	if (!ops || !strlen(ops->name) || !ops->init_opp_table) {
+	if (!ops || !strlen(ops->name) || !ops->init_opp_table ||
+	    !ops->get_transition_latency) {
 		pr_err("%s: Invalid arm_bL_ops, exiting\n", __func__);
 		return -ENODEV;
 	}
-- 
2.13.0.71.gd7076ec9c9cb