linux-kernel - [PATCH v5 08/14] ARM: tegra: Make outer

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Date:   Sun, 29 Sep 2019 20:59:46 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter De Schrijver <pdeschrijver@...dia.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     linux-pm@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v5 08/14] ARM: tegra: Make outer_disable() open-coded

The outer_disable() of Tegra's suspend code is open-coded now since
that helper produces spurious warning message about secondary CPUs being
online. The secondaries are actually halted by the cpuidle driver on
entering into LP2 idle-state. This fixes a storm of warnings once LP2
idling state is enabled on Tegra30.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm/mach-tegra/pm.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c
index 7d9ef26e52a7..16a02937d3da 100644
--- a/arch/arm/mach-tegra/pm.c
+++ b/arch/arm/mach-tegra/pm.c
@@ -146,9 +146,10 @@ static int tegra_sleep_cpu(unsigned long v2p)
 	 * if any of secondary CPU's is online and this is the LP2-idle
 	 * code-path only for Tegra20/30.
 	 */
-	if (trusted_foundations_registered())
-		outer_disable();
-
+#ifdef CONFIG_OUTER_CACHE
+	if (trusted_foundations_registered() && outer_cache.disable)
+		outer_cache.disable();
+#endif
 	/*
 	 * Note that besides of setting up CPU reset vector this firmware
 	 * call may also do the following, depending on the FW version:
-- 
2.23.0