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[PATCH 2/2] iio: gyro: mpu3050: add I2C dependency

Started byArnd Bergmann <arnd@arndb.de>
First post2016-11-08 15:10 +0100
Last post2016-11-08 21:40 +0100
Articles 3 — 3 participants

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  [PATCH 2/2] iio: gyro: mpu3050: add I2C dependency Arnd Bergmann <arnd@arndb.de> - 2016-11-08 15:10 +0100
    Re: [PATCH 2/2] iio: gyro: mpu3050: add I2C dependency Linus Walleij <linus.walleij@linaro.org> - 2016-11-08 16:50 +0100
      Re: [PATCH 2/2] iio: gyro: mpu3050: add I2C dependency Jonathan Cameron <jic23@kernel.org> - 2016-11-08 21:40 +0100

#1517224 — [PATCH 2/2] iio: gyro: mpu3050: add I2C dependency

FromArnd Bergmann <arnd@arndb.de>
Date2016-11-08 15:10 +0100
Subject[PATCH 2/2] iio: gyro: mpu3050: add I2C dependency
Message-ID<sBfg5-1XK-11@gated-at.bofh.it>
The new mpu3050 driver fails to build if I2C is disabled:

drivers/iio/built-in.o: In function `mpu3050_i2c_driver_exit':
mpu3050-i2c.c:(.exit.text+0x17f): undefined reference to `i2c_del_driver'
drivers/iio/built-in.o: In function `mpu3050_i2c_driver_init':
mpu3050-i2c.c:(.init.text+0x215): undefined reference to `i2c_register_driver'

This adds a Kconfig dependency to ensure we only build it when I2C
is available.

Fixes: 3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/iio/gyro/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index 107b5efd4178..3126cf05e6b9 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -93,6 +93,7 @@ config MPU3050
 config MPU3050_I2C
 	tristate "Invensense MPU3050 devices on I2C"
 	depends on !(INPUT_MPU3050=y || INPUT_MPU3050=m)
+	depends on I2C
 	select MPU3050
 	select REGMAP_I2C
 	select I2C_MUX
-- 
2.9.0

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#1517303

FromLinus Walleij <linus.walleij@linaro.org>
Date2016-11-08 16:50 +0100
Message-ID<sBgOR-2Jy-7@gated-at.bofh.it>
In reply to#1517224
On Tue, Nov 8, 2016 at 2:59 PM, Arnd Bergmann <arnd@arndb.de> wrote:

> The new mpu3050 driver fails to build if I2C is disabled:
>
> drivers/iio/built-in.o: In function `mpu3050_i2c_driver_exit':
> mpu3050-i2c.c:(.exit.text+0x17f): undefined reference to `i2c_del_driver'
> drivers/iio/built-in.o: In function `mpu3050_i2c_driver_init':
> mpu3050-i2c.c:(.init.text+0x215): undefined reference to `i2c_register_driver'
>
> This adds a Kconfig dependency to ensure we only build it when I2C
> is available.
>
> Fixes: 3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Acked-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

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#1517564

FromJonathan Cameron <jic23@kernel.org>
Date2016-11-08 21:40 +0100
Message-ID<sBllw-5TP-5@gated-at.bofh.it>
In reply to#1517303
On 08/11/16 15:40, Linus Walleij wrote:
> On Tue, Nov 8, 2016 at 2:59 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> 
>> The new mpu3050 driver fails to build if I2C is disabled:
>>
>> drivers/iio/built-in.o: In function `mpu3050_i2c_driver_exit':
>> mpu3050-i2c.c:(.exit.text+0x17f): undefined reference to `i2c_del_driver'
>> drivers/iio/built-in.o: In function `mpu3050_i2c_driver_init':
>> mpu3050-i2c.c:(.init.text+0x215): undefined reference to `i2c_register_driver'
>>
>> This adds a Kconfig dependency to ensure we only build it when I2C
>> is available.
>>
>> Fixes: 3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope")
>> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> 
> Acked-by: Linus Walleij <linus.walleij@linaro.org>
Applied.  Thanks.

Jonathan
> 
> Yours,
> Linus Walleij
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