This is a note to let you know that I've just added the patch titled
Input: resistive-adc-touch - fix kconfig dependency on IIO_BUFFER
to the 5.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-resistive-adc-touch-fix-kconfig-dependency-on-.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit eb518f5719574c2406358a270f46352f7ef091e5
Author: Necip Fazil Yildiran <fazilyildiran@xxxxxxxxx>
Date: Wed Nov 11 17:48:52 2020 -0800
Input: resistive-adc-touch - fix kconfig dependency on IIO_BUFFER
[ Upstream commit 676650d007e06fddcf3fe38238251d71bd179641 ]
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 <fazilyildiran@xxxxxxxxx>
Acked-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201102221504.541279-1-fazilyildiran@xxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 35c867b2d9a77..e6e043388a972 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
