EXYNOS_IOMMU is disabled in exynos_defconfig since it is known to cause boot failures on Exynos Chrome-books. The recommendation is for IOMMU to be enabled manually on systems as needed. A recent exynos_drm change added a warning message when EXYNOS_IOMMU is disabled. It is necessary to enable it to avoid the warning messages. A few initial tests have shown that enabling EXYNOS_IOMMU might be safe on Exynos Chrome-books. Enable CONFIG_EXYNOS_IOMMU in exynos_defconfig. Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx> --- arch/arm/configs/exynos_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig index f1d7834..0ccd5eb 100644 --- a/arch/arm/configs/exynos_defconfig +++ b/arch/arm/configs/exynos_defconfig @@ -281,6 +281,7 @@ CONFIG_DEVFREQ_GOV_POWERSAVE=y CONFIG_DEVFREQ_GOV_USERSPACE=y CONFIG_ARM_EXYNOS_BUS_DEVFREQ=y CONFIG_DEVFREQ_EVENT_EXYNOS_NOCP=y +CONFIG_EXYNOS_IOMMU=y CONFIG_EXTCON=y CONFIG_EXTCON_MAX14577=y CONFIG_EXTCON_MAX77693=y -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html