The cpuidle support calls cpu_suspend(), which is compiled conditionally, and fails to link unless something selects CONFIG_ARM_CPU_SUSPEND.
arch/arm/mach-imx/cpuidle-imx6sx.o: In function `imx6sx_enter_wait': cpuidle-imx6sx.c:(.text+0x6c): undefined reference to `cpu_suspend' This adds an explicit select statement here. Signed-off-by: Arnd Bergmann <[email protected]> --- arch/arm/mach-imx/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index f53ec31c9f5a..e47fa13f4b0c 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -469,7 +469,7 @@ config SOC_IMX53 config SOC_IMX6 bool - select ARM_CPU_SUSPEND if PM + select ARM_CPU_SUSPEND if (PM || CPU_IDLE) select ARM_ERRATA_754322 select ARM_ERRATA_775420 select ARM_GIC -- 2.9.0
