ACPI: add a Kconfig option for ACPI procfs interface
Add a kconfig option CONFIG_ACPI_PROCFS to make procfs interface
a configurable attribute of ACPI.
No procfs interface is actually deprecated,
and no sysfs interface is added in this patch.
CONGI_ACPI_PROCFS is used to mark procfs interface as deprecated
once the same function is duplicated in sysfs.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 30f3c8c..9bc3752 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -256,3 +256,12 @@
Who: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
---------------------------
+
+What: ACPI procfs interface
+When: July 2007
+Why: After ACPI sysfs conversion, ACPI attributes will be duplicated
+ in sysfs and the ACPI procfs interface should be removed.
+Who: Zhang Rui <rui.zhang@intel.com>
+
+---------------------------
+
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 0f9d4be..1f82ceb 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -77,6 +77,16 @@
Create /proc/acpi/sleep
Deprecated by /sys/power/state
+config ACPI_PROCFS
+ bool "Procfs interface (deprecated)"
+ depends on ACPI
+ default y
+ ---help---
+ Procfs interface for ACPI is made optional for back-compatible.
+ As the same functions are duplicated in sysfs interface
+ and this proc interface will be removed some time later,
+ it's marked as deprecated.
+
config ACPI_AC
tristate "AC Adapter"
depends on X86