linux-kernel - [PATCH] iio: adc: Specify IOMEM dependency for adi-axi-adc driver

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Date:   Tue, 30 Jun 2020 00:05:52 -0700
From:   David Gow <davidgow@...gle.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Michael Hennerich <michael.hennerich@...log.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Alexandru Ardelean <alexandru.ardelean@...log.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        David Gow <davidgow@...gle.com>
Subject: [PATCH] iio: adc: Specify IOMEM dependency for adi-axi-adc driver

The Analog Devices AXI ADC driver uses the devm_ioremap_resource
function, but does not specify a dependency on IOMEM in Kconfig. This
causes a build failure on architectures without IOMEM, for example, UML
(notably with make allyesconfig).

Fix this by making CONFIG_ADI_AXI_ADC depend on CONFIG_IOMEM.

Signed-off-by: David Gow <davidgow@...gle.com>
---
 drivers/iio/adc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index ff3569635ce0..f5009b61b80c 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -263,6 +263,7 @@ config AD9467
 
 config ADI_AXI_ADC
 	tristate "Analog Devices Generic AXI ADC IP core driver"
+	depends on IOMEM
 	select IIO_BUFFER
 	select IIO_BUFFER_HW_CONSUMER
 	select IIO_BUFFER_DMAENGINE
-- 
2.27.0.212.ge8ba1cc988-goog