From: Necip Fazil Yildiran fazilyildiran@gmail.com
commit 44a146a44f656fc03d368c1b9248d29a128cd053 upstream.
When VCNL4035 is enabled and IIO_BUFFER is disabled, it results in the following Kbuild warning:
WARNING: unmet direct dependencies detected for IIO_TRIGGERED_BUFFER Depends on [n]: IIO [=y] && IIO_BUFFER [=n] Selected by [y]: - VCNL4035 [=y] && IIO [=y] && I2C [=y]
The reason is that VCNL4035 selects IIO_TRIGGERED_BUFFER without depending on or selecting IIO_BUFFER while IIO_TRIGGERED_BUFFER depends on IIO_BUFFER. This can also fail building the kernel.
Honor the kconfig dependency to remove unmet direct dependency warnings and avoid any potential build failures.
Fixes: 55707294c4eb ("iio: light: Add support for vishay vcnl4035") Signed-off-by: Necip Fazil Yildiran fazilyildiran@gmail.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=209883 Link: https://lore.kernel.org/r/20201102223523.572461-1-fazilyildiran@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/iio/light/Kconfig | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -485,6 +485,7 @@ config VCNL4000
config VCNL4035 tristate "VCNL4035 combined ALS and proximity sensor" + select IIO_BUFFER select IIO_TRIGGERED_BUFFER select REGMAP_I2C depends on I2C