From: Thierry Reding <treding@nvidia.com>
Date: Mon, 23 Feb 2015 14:24:11 +0000 (+0100)
Subject: ARM: tegra: Disable cpuidle if PSCI is available
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fc0cf1773434c153a831067a29935e4627803583;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ARM: tegra: Disable cpuidle if PSCI is available

This is only relevant on Tegra114 and Tegra124, because earlier Tegra
generations used Cortex-A9 without secure extensions.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index 155807fa6fdd..bc00dd4a6fb2 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -24,6 +24,7 @@
 #include <asm/cpuidle.h>
 #include <asm/smp_plat.h>
 #include <asm/suspend.h>
+#include <asm/psci.h>
 
 #include "pm.h"
 #include "sleep.h"
@@ -84,5 +85,8 @@ static struct cpuidle_driver tegra_idle_driver = {
 
 int __init tegra114_cpuidle_init(void)
 {
-	return cpuidle_register(&tegra_idle_driver, NULL);
+	if (!psci_smp_available())
+		return cpuidle_register(&tegra_idle_driver, NULL);
+
+	return 0;
 }