linux-kernel - [PATCH] iio: adc: rockchip_saradc: Select IIO_TRIGGERED

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Date:   Fri, 28 Aug 2020 18:42:42 +0100
From:   Alexandru Elisei <alexandru.elisei@....com>
To:     linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Cc:     jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, xxm@...k-chips.com
Subject: [PATCH] iio: adc: rockchip_saradc: Select IIO_TRIGGERED_BUFFER

Building the Rockchip saradc driver can trigger the following error if the
driver is compiled into the kernel, but the IIO triggered buffer is not:

aarch64-linux-gnu-ld: drivers/iio/adc/rockchip_saradc.o: in function `rockchip_saradc_probe':
/path/to/linux/drivers/iio/adc/rockchip_saradc.c:427: undefined reference to `devm_iio_triggered_buffer_setup'

This is because commit 4e130dc7b413 ("iio: adc: rockchip_saradc: Add
support iio buffers") added support for industrial I/O triggered buffers,
but didn't update Kconfig to build the required file. Fix that.

Fixes: 4e130dc7b413 ("iio: adc: rockchip_saradc: Add support iio buffers")
Signed-off-by: Alexandru Elisei <alexandru.elisei@....com>
---
 drivers/iio/adc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 66d9cc073157..baa36a07a9cf 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -865,6 +865,7 @@ config ROCKCHIP_SARADC
 	tristate "Rockchip SARADC driver"
 	depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST)
 	depends on RESET_CONTROLLER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for the SARADC found in SoCs from
 	  Rockchip.
-- 
2.28.0