I believe i2c-designware-baytrail.c doesn't have strict dependency that Intel SoC IOSF Sideband support must be always built-in in order to be able to compile support for Intel Baytrail I2C bus sharing HW semaphore.
Redefine build dependencies so that CONFIG_IOSF_MBI=y is required only when CONFIG_I2C_DESIGNWARE_PLATFORM is built-in. Signed-off-by: Jarkko Nikula <jarkko.nik...@linux.intel.com> --- Hi David. Can you ack/nak this patch as I'm not fully familiar with this HW semaphore can there be problems when IOSF_MBI is built as a module. At least I'm getting similar sensible looking "punit semaphore acquired/held for x ms" debug messages when I modprobe/rmmod i2c_designware_platform independently is the CONFIG_IOSF_MBI=y or =m. --- drivers/i2c/busses/Kconfig | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 69c46fe13777..76f4d024def0 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -490,7 +490,9 @@ config I2C_DESIGNWARE_PCI config I2C_DESIGNWARE_BAYTRAIL bool "Intel Baytrail I2C semaphore support" - depends on I2C_DESIGNWARE_PLATFORM && IOSF_MBI=y && ACPI + depends on ACPI + depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \ + (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y) help This driver enables managed host access to the PMIC I2C bus on select Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html