arm64: vexpress: Add support for poweroff/restart
This patch adds the arm_pm_poweroff definition expected by the
vexpress-poweroff.c driver and enables the latter for arm64.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c05bb21..43b0e9f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -32,6 +32,8 @@
select OF
select OF_EARLY_FLATTREE
select PERF_USE_VMALLOC
+ select POWER_RESET
+ select POWER_SUPPLY
select RTC_LIB
select SPARSE_IRQ
select SYSCTL_EXCEPTION_TRACE
@@ -106,6 +108,7 @@
bool "ARMv8 software model (Versatile Express)"
select ARCH_REQUIRE_GPIOLIB
select COMMON_CLK_VERSATILE
+ select POWER_RESET_VEXPRESS
select VEXPRESS_CONFIG
help
This enables support for the ARMv8 software model (Versatile
diff --git a/arch/arm64/include/asm/system_misc.h b/arch/arm64/include/asm/system_misc.h
index 95e4072..a6e1750 100644
--- a/arch/arm64/include/asm/system_misc.h
+++ b/arch/arm64/include/asm/system_misc.h
@@ -41,7 +41,7 @@
extern void __show_regs(struct pt_regs *);
void soft_restart(unsigned long);
-extern void (*pm_restart)(const char *cmd);
+extern void (*arm_pm_restart)(char str, const char *cmd);
#define UDBG_UNDEFINED (1 << 0)
#define UDBG_SYSCALL (1 << 1)
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 116a60a..bbefb6f 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -81,8 +81,8 @@
void (*pm_power_off)(void);
EXPORT_SYMBOL_GPL(pm_power_off);
-void (*pm_restart)(const char *cmd);
-EXPORT_SYMBOL_GPL(pm_restart);
+void (*arm_pm_restart)(char str, const char *cmd);
+EXPORT_SYMBOL_GPL(arm_pm_restart);
/*
@@ -164,8 +164,8 @@
local_fiq_disable();
/* Now call the architecture specific reboot code. */
- if (pm_restart)
- pm_restart(cmd);
+ if (arm_pm_restart)
+ arm_pm_restart('h', cmd);
/*
* Whoops - the architecture was unable to reboot.