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authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-11-05 23:18:03 (GMT)
committerLen Brown <len.brown@intel.com>2008-11-06 20:52:28 (GMT)
commit8950d89acaa8c353869e681772479d7955ae6f7a (patch)
tree0e434e795f1b6cf1c1edb6df284cdc8bc62248c8 /drivers/acpi
parentfefe5ab3d67b0ade6200fec5ed6f2812cbcbb658 (diff)
downloadlinux-8950d89acaa8c353869e681772479d7955ae6f7a.tar.xz
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>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/Kconfig8
-rw-r--r--drivers/acpi/Makefile2
-rw-r--r--drivers/acpi/bus.c3
3 files changed, 2 insertions, 11 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 4fa7866..90cb2a8 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
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 8017f63..fc62231 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -39,7 +39,7 @@ obj-y += sleep/
obj-y += bus.o glue.o
obj-y += scan.o
# Keep EC driver first. Initialization of others depend on it.
-obj-$(CONFIG_ACPI_EC) += ec.o
+obj-y += ec.o
obj-$(CONFIG_ACPI_AC) += ac.o
obj-$(CONFIG_ACPI_BATTERY) += battery.o
obj-$(CONFIG_ACPI_BUTTON) += button.o
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index c797c64..765fd1c 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -774,7 +774,7 @@ static int __init acpi_bus_init(void)
"Unable to initialize ACPI OS objects\n");
goto error1;
}
-#ifdef CONFIG_ACPI_EC
+
/*
* ACPI 2.0 requires the EC driver to be loaded and work before
* the EC device is found in the namespace (i.e. before acpi_initialize_objects()
@@ -785,7 +785,6 @@ static int __init acpi_bus_init(void)
*/
status = acpi_ec_ecdt_probe();
/* Ignore result. Not having an ECDT is not fatal. */
-#endif
status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
if (ACPI_FAILURE(status)) {