ACPI: remove CONFIG_ACPI_EC

Remove CONFIG_ACPI_EC.  It was always set the same as CONFIG_ACPI,
and it had no menu label, so there was no way to set it to anything
other than "y".

Per section 6.5.4 of the ACPI 3.0b specification,

    OSPM must make Embedded Controller operation regions, accessed
    via the Embedded Controllers described in ECDT, available before
    executing any control method.

The ECDT table is optional, but if it is present, the above text
means that the EC it describes is a required part of the ACPI
subsystem, so CONFIG_ACPI_EC=n wouldn't make sense.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 0 insertions, 8 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 4fa7866a9a5e..90cb2a823b56 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -324,14 +324,6 @@ config ACPI_DEBUG_FUNC_TRACE
           ACPI Debug Statements slow down ACPI processing. Function trace
           is about half of the penalty and is rarely useful.
 
-config ACPI_EC
-        bool
-        default y
-        help
-          This driver is required on some systems for the proper operation of
-          the battery and thermal drivers.  If you are compiling for a 
-          mobile system, say Y.
-
 config ACPI_PCI_SLOT
         tristate "PCI slot detection driver"
         default n