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authorHanjun Guo <hanjun.guo@linaro.org>2014-07-18 12:02:54 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-21 13:50:58 +0200
commit46ba51ea8f8639da32c55744b35479fdfb4e7232 (patch)
treea1544217bd2406bb63eca797c7206acb9313e6d2 /arch/ia64
parentACPI: Don't use acpi_lapic in ACPI core code (diff)
downloadlinux-46ba51ea8f8639da32c55744b35479fdfb4e7232.tar.xz
linux-46ba51ea8f8639da32c55744b35479fdfb4e7232.zip
ACPI / processor: Introduce ARCH_MIGHT_HAVE_ACPI_PDC
The use of _PDC is deprecated in ACPI 3.0 in favor of _OSC, as ARM platform is supported only in ACPI 5.0 or higher version, _PDC will not be used in ARM platform, so make Make _PDC only for platforms with Intel CPUs. Introduce ARCH_MIGHT_HAVE_ACPI_PDC and move _PDC related code in ACPI processor driver into a single file processor_pdc.c, make x86 and ia64 select it when ACPI is enabled. This patch also use pr_* to replace printk to fix the checkpatch warning and factor acpi_processor_alloc_pdc() a little bit to avoid duplicate pr_err() code. Suggested-by: Robert Richter <rric@kernel.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 2f3abcf8f6bc..44a6915ab13d 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -10,6 +10,7 @@ config IA64
select ARCH_MIGHT_HAVE_PC_SERIO
select PCI if (!IA64_HP_SIM)
select ACPI if (!IA64_HP_SIM)
+ select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
select PM if (!IA64_HP_SIM)
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_IDE