[PATCH] platform/x86: INT33FE: add i2c dependency

[Tobias Regnery <tobias.regnery@gmail.com>]

With CONFIG_I2C=m and CONFIG_INTEL_CHT_INT33FE=y we see the following link
errors:

drivers/built-in.o: In function 'cht_int33fe_remove':
intel_cht_int33fe.c:(.text+0x391f6e): undefined reference to 'i2c_unregister_device'
intel_cht_int33fe.c:(.text+0x391f76): undefined reference to 'i2c_unregister_device'
intel_cht_int33fe.c:(.text+0x391f7d): undefined reference to 'i2c_unregister_device'
drivers/built-in.o: In function 'cht_int33fe_probe':
intel_cht_int33fe.c:(.text+0x392147): undefined reference to 'i2c_acpi_new_device'
intel_cht_int33fe.c:(.text+0x392185): undefined reference to 'i2c_acpi_new_device'
intel_cht_int33fe.c:(.text+0x3921bd): undefined reference to 'i2c_acpi_new_device'
intel_cht_int33fe.c:(.text+0x3921d9): undefined reference to 'i2c_unregister_device'
intel_cht_int33fe.c:(.text+0x3921e8): undefined reference to 'i2c_unregister_device'
drivers/built-in.o: In function 'cht_int33fe_driver_init':
intel_cht_int33fe.c:(.init.text+0x2386d): undefined reference to 'i2c_register_driver'
drivers/built-in.o: In function 'cht_int33fe_driver_exit':
intel_cht_int33fe.c:(.exit.text+0x206e): undefined reference to 'i2c_del_driver'

Fix this by adding a kconfig dependency on the I2C subsystem.

Fixes: 1cd706df8a9c ("platform/x86: Add Intel Cherry Trail ACPI INT33FE device driver")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
---
 drivers/platform/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 6b33db6c9d22..ea264fefb845 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -783,7 +783,7 @@ config ACPI_CMPC
 
 config INTEL_CHT_INT33FE
 	tristate "Intel Cherry Trail ACPI INT33FE Driver"
-	depends on X86 && ACPI
+	depends on X86 && ACPI && I2C
 	---help---
 	  This driver add support for the INT33FE ACPI device found on
 	  some Intel Cherry Trail devices.
-- 
2.11.0