From 3e6a1c945950140926dd6e2cc667893de0a7fe3b Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Thu, 24 Jul 2014 10:24:19 -0500 Subject: [PATCH] ARM: OMAP4+: PM: Use only valid low power state for CPU hotplug Not all SoCs support OFF mode - for example DRA74/72. So, use valid power state during CPU hotplug. Signed-off-by: Nishanth Menon Reviewed-by: Kevin Hilman Acked-by: Santosh Shilimkar --- arch/arm/mach-omap2/omap-mpuss-lowpower.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c index 4001325f90fb..e9cdacfe1923 100644 --- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c +++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c @@ -298,6 +298,10 @@ int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state) if (omap_rev() == OMAP4430_REV_ES1_0) return -ENXIO; + /* Use the achievable power state for the domain */ + power_state = pwrdm_get_valid_lp_state(pm_info->pwrdm, + false, power_state); + if (power_state == PWRDM_POWER_OFF) cpu_state = 1; -- 2.20.1