MIPS: Select CONFIG_GENERIC_IDLE_POLL_SETUP

hlt,nohlt paramaters are useful when debugging cpuidle
related issues.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Author: FlyGoat

Documentation/admin-guide/kernel-parameters.txt

@@ -3702,8 +3702,8 @@
 
 	nohibernate	[HIBERNATION] Disable hibernation and resume.
 
-	nohlt		[ARM,ARM64,MICROBLAZE,SH] Forces the kernel to busy wait
-			in do_idle() and not use the arch_cpu_idle()
+	nohlt		[ARM,ARM64,MICROBLAZE,MIPS,SH] Forces the kernel to
+			busy wait in do_idle() and not use the arch_cpu_idle()
 			implementation; requires CONFIG_GENERIC_IDLE_POLL_SETUP
 			to be effective. This is useful on platforms where the
 			sleep(SH) or wfi(ARM,ARM64) instructions do not work

arch/mips/Kconfig

@@ -44,6 +44,7 @@ config MIPS
 	select GENERIC_LIB_UCMPDI2
 	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
 	select GENERIC_SMP_IDLE_THREAD
+	select GENERIC_IDLE_POLL_SETUP
 	select GENERIC_TIME_VSYSCALL
 	select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
 	select HAS_IOPORT if !NO_IOPORT_MAP || ISA