linux-kernel - [PATCH] cpufreq: tegra186: add CPUFREQ_NEED_INITIAL_FREQ

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20191023092703.30767-1-ykaukab@suse.de>
Date:   Wed, 23 Oct 2019 11:27:03 +0200
From:   Mian Yousaf Kaukab <ykaukab@...e.de>
To:     linux-pm@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        mperttunen@...dia.com, linux-tegra@...r.kernel.org,
        jonathanh@...dia.com, Mian Yousaf Kaukab <ykaukab@...e.de>
Subject: [PATCH] cpufreq: tegra186: add CPUFREQ_NEED_INITIAL_FREQ_CHECK flag

The driver doesn't provide ->get() method to read current frequency.
Let cpufreq core set a frequency which is specified in freq-table by
setting CPUFREQ_NEED_INITIAL_FREQ_CHECK flag. As a result policy->cur
is set to a correct value as well.

Signed-off-by: Mian Yousaf Kaukab <ykaukab@...e.de>
---
 drivers/cpufreq/tegra186-cpufreq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/tegra186-cpufreq.c b/drivers/cpufreq/tegra186-cpufreq.c
index bcecb068b51b..6ce6298bd2d7 100644
--- a/drivers/cpufreq/tegra186-cpufreq.c
+++ b/drivers/cpufreq/tegra186-cpufreq.c
@@ -93,7 +93,8 @@ static int tegra186_cpufreq_set_target(struct cpufreq_policy *policy,
 
 static struct cpufreq_driver tegra186_cpufreq_driver = {
 	.name = "tegra186",
-	.flags = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
+	.flags = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
+			CPUFREQ_NEED_INITIAL_FREQ_CHECK,
 	.verify = cpufreq_generic_frequency_table_verify,
 	.target_index = tegra186_cpufreq_set_target,
 	.init = tegra186_cpufreq_init,
-- 
2.16.4