linux-kernel - [PATCH] iio: health/afe4403: select REGMAP

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Date:	Tue, 16 Feb 2016 16:52:15 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Jonathan Cameron <jic23@...nel.org>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Arnd Bergmann <arnd@...db.de>,
	Hartmut Knaack <knaack.h@....de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald <pmeerw@...erw.net>,
	"Andrew F. Davis" <afd@...com>,
	Matt Ranostay <mranostay@...il.com>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] iio: health/afe4403: select REGMAP_SPI

The newly added afe4403 driver uses the regmap facility to abstract
the I2C and SPI access. However, it fails to ensure that regmap_spi
is actually present:

drivers/iio/built-in.o: In function `afe4403_probe':
:(.text+0x9bf8): undefined reference to `__devm_regmap_init_spi'

This adds a Kconfig select statement like the afe4404 I2C driver
has.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Fixes: eec96d1e2d31 ("iio: health: Add driver for the TI AFE4403 heart monitor")
---
 drivers/iio/health/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/health/Kconfig b/drivers/iio/health/Kconfig
index f0c19779ac27..c5f004a8e447 100644
--- a/drivers/iio/health/Kconfig
+++ b/drivers/iio/health/Kconfig
@@ -10,6 +10,7 @@ menu "Heart Rate Monitors"
 config AFE4403
 	tristate "TI AFE4403 Heart Rate Monitor"
 	depends on SPI_MASTER
+	select REGMAP_SPI
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
-- 
2.7.0