From: Nishanth Menon Date: Thu, 24 Jul 2014 15:24:19 +0000 (-0500) Subject: ARM: OMAP4+: PM: Use only valid low power state for CPU hotplug X-Git-Tag: v3.18-rc1~122^2~14^2~2^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3e6a1c945950140926dd6e2cc667893de0a7fe3b;p=karo-tx-linux.git 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 --- 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;