linux-kernel - [PATCH] cpufreq: tegra186: Share policy per cluster

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Message-ID: <20250216160806.391566-1-webgeek1234@gmail.com>
Date: Sun, 16 Feb 2025 10:08:06 -0600
From: Aaron Kling <luceoscutum@...il.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>
Cc: Aaron Kling <webgeek1234@...il.com>,
	linux-pm@...r.kernel.org,
	linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] cpufreq: tegra186: Share policy per cluster

This functionally brings tegra186 in line with tegra210 and tegra194,
sharing a cpufreq policy between all cores in a cluster.

Signed-off-by: Aaron Kling <webgeek1234@...il.com>
---
 drivers/cpufreq/tegra186-cpufreq.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/cpufreq/tegra186-cpufreq.c b/drivers/cpufreq/tegra186-cpufreq.c
index c7761eb99f3cc..c832a1270e688 100644
--- a/drivers/cpufreq/tegra186-cpufreq.c
+++ b/drivers/cpufreq/tegra186-cpufreq.c
@@ -73,11 +73,18 @@ static int tegra186_cpufreq_init(struct cpufreq_policy *policy)
 {
 	struct tegra186_cpufreq_data *data = cpufreq_get_driver_data();
 	unsigned int cluster = data->cpus[policy->cpu].bpmp_cluster_id;
+	u32 cpu;
 
 	policy->freq_table = data->clusters[cluster].table;
 	policy->cpuinfo.transition_latency = 300 * 1000;
 	policy->driver_data = NULL;
 
+	/* set same policy for all cpus in a cluster */
+	for (cpu = 0; cpu < (sizeof(tegra186_cpus)/sizeof(struct tegra186_cpufreq_cpu)); cpu++) {
+		if (data->cpus[cpu].bpmp_cluster_id == cluster)
+			cpumask_set_cpu(cpu, policy->cpus);
+	}
+
 	return 0;
 }
 
-- 
2.48.1