From 26ac24e3bbd4a8c04b6db856e80dab026690e9e1 Mon Sep 17 00:00:00 2001
From: Teng Fei Fan <tengfei@codeaurora.org>
Date: Fri, 25 May 2018 09:03:50 +0800
Subject: [PATCH] arm: psci: add psci_cpu_can_disable() function

Some devices which support disable cpu0 can not disable cpu0,
so add psci_cpu_can_disable() function to make all cpus can
disable.

Change-Id: Iaed4129abfc1283c6371bc11bbe5ae4e66317280
Signed-off-by: Teng Fei Fan <tengfei@codeaurora.org>
---
 arch/arm/kernel/psci_smp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/kernel/psci_smp.c b/arch/arm/kernel/psci_smp.c
index aba6b2ab7a58..7a95c165f2dc 100644
--- a/arch/arm/kernel/psci_smp.c
+++ b/arch/arm/kernel/psci_smp.c
@@ -105,6 +105,11 @@ int psci_cpu_kill(unsigned int cpu)
 	return 0;
 }
 
+bool psci_cpu_can_disable(unsigned int cpu)
+{
+	return true;
+}
+
 #endif
 
 bool __init psci_smp_available(void)
@@ -119,5 +124,6 @@ const struct smp_operations psci_smp_ops __initconst = {
 	.cpu_disable		= psci_cpu_disable,
 	.cpu_die		= psci_cpu_die,
 	.cpu_kill		= psci_cpu_kill,
+	.cpu_can_disable	= psci_cpu_can_disable,
 #endif
 };