linux-kernel - [PATCH 6/7] cpufreq: apple-soc: Set fallback transition latency to APPLE_DVFS_TRANSITION

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Message-ID: <20241211112244.18393-7-towinchenmi@gmail.com>
Date: Wed, 11 Dec 2024 19:19:33 +0800
From: Nick Chan <towinchenmi@...il.com>
To: Hector Martin <marcan@...can.st>,
	Sven Peter <sven@...npeter.dev>,
	Alyssa Rosenzweig <alyssa@...enzweig.io>,
	"Rafael J . Wysocki" <rafael@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	asahi@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Nick Chan <towinchenmi@...il.com>
Subject: [PATCH 6/7] cpufreq: apple-soc: Set fallback transition latency to APPLE_DVFS_TRANSITION_TIMEOUT

The driver already assumes transitions will not take longer than
APPLE_DVFS_TRANSITION_TIMEOUT in apple_soc_cpufreq_set_target(), so it
makes little sense to set CPUFREQ_ETERNAL as the transition latency
when the transistion latency is not given by the opp-table.

Signed-off-by: Nick Chan <towinchenmi@...il.com>
---
 drivers/cpufreq/apple-soc-cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/apple-soc-cpufreq.c b/drivers/cpufreq/apple-soc-cpufreq.c
index 94e57f055a5f..0af36f911bea 100644
--- a/drivers/cpufreq/apple-soc-cpufreq.c
+++ b/drivers/cpufreq/apple-soc-cpufreq.c
@@ -291,7 +291,7 @@ static int apple_soc_cpufreq_init(struct cpufreq_policy *policy)
 
 	transition_latency = dev_pm_opp_get_max_transition_latency(cpu_dev);
 	if (!transition_latency)
-		transition_latency = CPUFREQ_ETERNAL;
+		transition_latency = APPLE_DVFS_TRANSITION_TIMEOUT;
 
 	policy->cpuinfo.transition_latency = transition_latency;
 	policy->dvfs_possible_from_any_cpu = true;
-- 
2.47.1