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authorLan Tianyu <tianyu.lan@intel.com>2014-05-20 20:59:24 +0800
committerWolfram Sang <wsa@the-dreams.de>2014-06-27 14:50:41 +0200
commitda3c6647ee08711c7edc28d7fea4ad69fc5ffcca (patch)
tree47272da395818ecc9101b27b01808b8cf11f9b35 /drivers/i2c/Kconfig
parent5d98e61d337c181f199a6cb864569cc4e116ef4c (diff)
I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI config
Clean up ACPI related code in the i2c core and add CONFIG_I2C_ACPI to enable I2C ACPI code. Current there is a race between removing I2C ACPI operation region and ACPI AML code accessing. So make i2c core built-in if CONFIG_I2C_ACPI is set. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/Kconfig')
-rw-r--r--drivers/i2c/Kconfig18
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 7b7ea320a258..3e3b680dc007 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -2,7 +2,9 @@
# I2C subsystem configuration
#
-menuconfig I2C
+menu "I2C support"
+
+config I2C
tristate "I2C support"
select RT_MUTEXES
---help---
@@ -21,6 +23,18 @@ menuconfig I2C
This I2C support can also be built as a module. If so, the module
will be called i2c-core.
+config I2C_ACPI
+ bool "I2C ACPI support"
+ select I2C
+ depends on ACPI
+ default y
+ help
+ Say Y here if you want to enable ACPI I2C support. This includes support
+ for automatic enumeration of I2C slave devices and support for ACPI I2C
+ Operation Regions. Operation Regions allow firmware (BIOS) code to
+ access I2C slave devices, such as smart batteries through an I2C host
+ controller driver.
+
if I2C
config I2C_BOARDINFO
@@ -124,3 +138,5 @@ config I2C_DEBUG_BUS
on.
endif # I2C
+
+endmenu