From 6933de0ca0b7656db94f67731c8c53c7dcacae3a Mon Sep 17 00:00:00 2001 From: Al Stone Date: Tue, 24 Mar 2015 14:02:51 +0000 Subject: ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64 ACPI reduced hardware mode is disabled by default, but ARM64 can only run properly in ACPI hardware reduced mode, so select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64. If the firmware is not using hardware reduced ACPI mode, we will disable ACPI to avoid nightmare such as accessing some registers which are not available on ARM64. CC: Catalin Marinas CC: Will Deacon Reviewed-by: Grant Likely Tested-by: Suravee Suthikulpanit Tested-by: Yijing Wang Tested-by: Mark Langsdorf Tested-by: Jon Masters Tested-by: Timur Tabi Tested-by: Robert Richter Acked-by: Robert Richter Signed-off-by: Al Stone Signed-off-by: Hanjun Guo Signed-off-by: Will Deacon --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm64/Kconfig') diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b8e97331ffb..d00ab9a71d59 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1,5 +1,6 @@ config ARM64 def_bool y + select ACPI_REDUCED_HARDWARE_ONLY if ACPI select ARCH_BINFMT_ELF_RANDOMIZE_PIE select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAS_GCOV_PROFILE_ALL -- cgit v1.2.3-55-g7522