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-rw-r--r--drivers/i2c/Kconfig15
-rw-r--r--drivers/i2c/Makefile2
-rw-r--r--drivers/i2c/i2c-acpi.c2
3 files changed, 9 insertions, 10 deletions
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 3e3b680dc007..b51a402752c4 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -23,17 +23,14 @@ config 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
+config ACPI_I2C_OPREGION
+ bool "ACPI I2C Operation region support"
+ depends on I2C=y && 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.
+ Say Y here if you want to enable ACPI I2C operation region support.
+ Operation Regions allow firmware (BIOS) code to access I2C slave devices,
+ such as smart batteries through an I2C host controller driver.
if I2C
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index a1f590cbb435..e0228b228256 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -3,7 +3,7 @@
#
i2ccore-y := i2c-core.o
-i2ccore-$(CONFIG_I2C_ACPI) += i2c-acpi.o
+i2ccore-$(CONFIG_ACPI) += i2c-acpi.o
obj-$(CONFIG_I2C_BOARDINFO) += i2c-boardinfo.o
obj-$(CONFIG_I2C) += i2ccore.o
diff --git a/drivers/i2c/i2c-acpi.c b/drivers/i2c/i2c-acpi.c
index e8b61967334b..0dbc18c15c43 100644
--- a/drivers/i2c/i2c-acpi.c
+++ b/drivers/i2c/i2c-acpi.c
@@ -126,6 +126,7 @@ void acpi_i2c_register_devices(struct i2c_adapter *adap)
dev_warn(&adap->dev, "failed to enumerate I2C slaves\n");
}
+#ifdef CONFIG_ACPI_I2C_OPREGION
static int acpi_gsb_i2c_read_bytes(struct i2c_client *client,
u8 cmd, u8 *data, u8 data_len)
{
@@ -360,3 +361,4 @@ void acpi_i2c_remove_space_handler(struct i2c_adapter *adapter)
acpi_bus_detach_private_data(handle);
}
+#endif