Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH] ARM: imx: select ARM_CPU_SUSPEND only for imx6 | Date | Fri, 26 Feb 2016 12:54:12 +0100 |
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i.MX only needs to select ARM_CPU_SUSPEND manually for the very specific case that CONFIG_PM_SLEEP is disabled and imx6 is used with CONFIG_PM enabled for runtime PM.
If we are building a kernel only for CPUs that are not using the cpu_suspend() helper, we otherwise get a harmless build warning:
warning: (ARCH_MXC && SOC_IMX23 && SOC_IMX28 && ARCH_PXA && MACH_MVEBU_V7 && ARCH_OMAP3 && ARCH_OMAP4 && SOC_OMAP5 && SOC_AM33XX && SOC_DRA7XX && ARCH_EXYNOS3 && ARCH_EXYNOS4 && EXYNOS5420_MCPM && EXYNOS_CPU_SUSPEND && ARCH_VEXPRESS_TC2_PM && ARM_BIG_LITTLE_CPUIDLE && ARM_HIGHBANK_CPUIDLE && QCOM_PM) selects ARM_CPU_SUSPEND which has unmet direct dependencies (ARCH_SUSPEND_POSSIBLE)
This moves the option to the SOC_IMX6 option that actually requires it, in effect reverting commit f36b594f3754 ("ARM: mach-imx: Select ARM_CPU_SUSPEND at ARCH_MXC level") that was meant as a cleanup and unintentionally caused this warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- 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 6c6b86cdeced..53fc0d4948a4 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -3,7 +3,6 @@ menuconfig ARCH_MXC depends on ARCH_MULTIPLATFORM || ARM_SINGLE_ARMV7M select ARCH_REQUIRE_GPIOLIB select ARCH_SUPPORTS_BIG_ENDIAN - select ARM_CPU_SUSPEND if PM select CLKSRC_IMX_GPT select GENERIC_IRQ_CHIP select PINCTRL @@ -512,6 +511,7 @@ config SOC_IMX53 config SOC_IMX6 bool + select ARM_CPU_SUSPEND if PM select ARM_ERRATA_754322 select ARM_ERRATA_775420 select ARM_GIC -- 2.7.0
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