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ARM: OMAP4+: PM: Use only valid low power state for CPU hotplug

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Not all SoCs support OFF mode - for example DRA74/72. So, use valid
power state during CPU hotplug.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
This commit is contained in:
Nishanth Menon 2014-07-24 10:24:19 -05:00
parent bd7593c69a
commit 3e6a1c9459
1 changed files with 4 additions and 0 deletions
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4
arch/arm/mach-omap2/omap-mpuss-lowpower.c
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@ -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;