linux-kernel - [PATCH] cpuidle: psci: Extend information in log about OSI/PC mode

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Date:   Thu, 20 Oct 2022 13:55:13 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     "Rafael J . Wysocki" <rjw@...ysocki.net>, linux-pm@...r.kernel.org
Cc:     Johan Hovold <johan@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] cpuidle: psci: Extend information in log about OSI/PC mode

It's useful to understand whether we are using OS-initiated (OSI) mode or
Platform Coordinated (PC) mode, when initializing the CPU PM domains.
Therefore, let's extend the print in the log after a successful probe with
this information.

Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
---
 drivers/cpuidle/cpuidle-psci-domain.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c
index 821984947ed9..c80cf9ddabd8 100644
--- a/drivers/cpuidle/cpuidle-psci-domain.c
+++ b/drivers/cpuidle/cpuidle-psci-domain.c
@@ -181,7 +181,8 @@ static int psci_cpuidle_domain_probe(struct platform_device *pdev)
 	if (ret)
 		goto remove_pd;
 
-	pr_info("Initialized CPU PM domain topology\n");
+	pr_info("Initialized CPU PM domain topology using %s mode\n",
+		use_osi ? "OSI" : "PC");
 	return 0;
 
 put_node:
-- 
2.34.1