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Date: Tue, 3 Nov 2020 01:35:24 +0300
From: Necip Fazil Yildiran <fazilyildiran@...il.com>
To: jic23@...nel.org
Cc: pn@...x.de, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, paul@...zz.com, jeho@...utexas.edu,
Necip Fazil Yildiran <fazilyildiran@...il.com>
Subject: [PATCH] iio: light: fix kconfig dependency bug for VCNL4035
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")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209883
Signed-off-by: Necip Fazil Yildiran <fazilyildiran@...il.com>
---
drivers/iio/light/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index cade6dc0305b..33ad4dd0b5c7 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -544,6 +544,7 @@ config VCNL4000
config VCNL4035
tristate "VCNL4035 combined ALS and proximity sensor"
+ select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
select REGMAP_I2C
depends on I2C
--
2.25.1
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