From: Necip Fazil Yildiran Date: Thu, 12 Nov 2020 01:48:52 +0000 (-0800) Subject: Input: resistive-adc-touch - fix kconfig dependency on IIO_BUFFER X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=676650d007e06fddcf3fe38238251d71bd179641;p=linux.git Input: resistive-adc-touch - fix kconfig dependency on IIO_BUFFER When TOUCHSCREEN_ADC is enabled and IIO_BUFFER is disabled, it results in the following Kbuild warning: WARNING: unmet direct dependencies detected for IIO_BUFFER_CB Depends on [n]: IIO [=y] && IIO_BUFFER [=n] Selected by [y]: - TOUCHSCREEN_ADC [=y] && !UML && INPUT [=y] && INPUT_TOUCHSCREEN [=y] && IIO [=y] The reason is that TOUCHSCREEN_ADC selects IIO_BUFFER_CB without depending on or selecting IIO_BUFFER while IIO_BUFFER_CB 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: aa132ffb6b0a ("input: touchscreen: resistive-adc-touch: add generic resistive ADC touchscreen") Signed-off-by: Necip Fazil Yildiran Acked-by: Jonathan Cameron Link: https://lore.kernel.org/r/20201102221504.541279-1-fazilyildiran@gmail.com Signed-off-by: Dmitry Torokhov --- diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index f012fe746df01..cc18f54ea887f 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -96,6 +96,7 @@ config TOUCHSCREEN_AD7879_SPI config TOUCHSCREEN_ADC tristate "Generic ADC based resistive touchscreen" depends on IIO + select IIO_BUFFER select IIO_BUFFER_CB help Say Y here if you want to use the generic ADC