linux-kernel - [PATCH] cpufreq: check only freq_table in __resolve

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Message-Id: <20220811165408.23027-1-lukasz.luba@arm.com>
Date:   Thu, 11 Aug 2022 17:54:08 +0100
From:   Lukasz Luba <lukasz.luba@....com>
To:     linux-kernel@...r.kernel.org, viresh.kumar@...aro.org,
        rafael@...nel.org
Cc:     linux-pm@...r.kernel.org, lukasz.luba@....com
Subject: [PATCH] cpufreq: check only freq_table in __resolve_freq()

The there is no need to check if the cpufreq driver implements callback
cpufreq_driver::target_index. The logic in the __resolve_freq uses
the frequency table available in the policy. It doesn't matter if the
driver provides 'target_index' or 'target' callback. It just has to
populate the 'policy->freq_table'.

Thus, check only frequency table during the frequency resolving call.

Signed-off-by: Lukasz Luba <lukasz.luba@....com>
---
 drivers/cpufreq/cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 7820c4e74289..69b3d61852ac 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -532,7 +532,7 @@ static unsigned int __resolve_freq(struct cpufreq_policy *policy,
 
 	target_freq = clamp_val(target_freq, policy->min, policy->max);
 
-	if (!cpufreq_driver->target_index)
+	if (!policy->freq_table)
 		return target_freq;
 
 	idx = cpufreq_frequency_table_target(policy, target_freq, relation);
-- 
2.17.1