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From: Mario Limonciello <superm1@kernel.org>
To: "Gautham R . Shenoy" <gautham.shenoy@amd.com>,
	Perry Yuan <perry.yuan@amd.com>
Cc: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>,
	linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT
	AND 64-BIT)),
	linux-pm@vger.kernel.org (open list:CPU FREQUENCY SCALING
	FRAMEWORK), Mario Limonciello <mario.limonciello@amd.com>,
	Klara Modin <klarasmodin@gmail.com>
Subject: [PATCH] cpufreq: amd-pstate: Register driver after static call update
Date: Sun, 27 Oct 2024 07:26:12 -0500	[thread overview]
Message-ID: <20241027122612.749674-1-superm1@kernel.org> (raw)

From: Mario Limonciello <mario.limonciello@amd.com>

The driver must be registered specifically after the static call
update.

Fixes: e238968a2087 ("cpufreq/amd-pstate: Remove the redundant amd_pstate_set_driver() call")
Reported-and-tested-by: Klara Modin <klarasmodin@gmail.com>
Closes: https://lore.kernel.org/linux-pm/cf9c146d-bacf-444e-92e2-15ebf513af96@gmail.com/#t
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/cpufreq/amd-pstate.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 206725219d8c9..2f0e29b05963d 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -1857,12 +1857,6 @@ static int __init amd_pstate_init(void)
 		return -ENODEV;
 	}
 
-	ret = amd_pstate_register_driver(cppc_state);
-	if (ret) {
-		pr_err("failed to register with return %d\n", ret);
-		return ret;
-	}
-
 	/* capability check */
 	if (cpu_feature_enabled(X86_FEATURE_CPPC)) {
 		pr_debug("AMD CPPC MSR based functionality is supported\n");
@@ -1881,6 +1875,12 @@ static int __init amd_pstate_init(void)
 			return ret;
 	}
 
+	ret = amd_pstate_register_driver(cppc_state);
+	if (ret) {
+		pr_err("failed to register with return %d\n", ret);
+		return ret;
+	}
+
 	dev_root = bus_get_dev_root(&cpu_subsys);
 	if (dev_root) {
 		ret = sysfs_create_group(&dev_root->kobj, &amd_pstate_global_attr_group);
-- 
2.43.0


             reply	other threads:[~2024-10-27 12:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-27 12:26 Mario Limonciello [this message]
2024-10-28  4:27 ` Dhananjay Ugwekar
2024-10-28 13:34   ` Mario Limonciello

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