iio: ad5064: Move bus write callbacks to #if protected sections
Move the SPI and I2C specific write callbacks to the respective "#if IS_ENABLED(CONFIG_SPI_MASTER)" and "#if IS_ENABLED(CONFIG_I2C)" protected sections of the code. This fixes the following warning which occurs if CONFIG_I2C is not set: drivers/iio/dac/ad5064.c: In function ‘ad5064_i2c_write’: drivers/iio/dac/ad5064.c:132: error: implicit declaration of function ‘i2c_master_send’ And the follwing warning which occurs when CONFIG_SPI_MASTER is not set: drivers/iio/dac/ad5064.c:137: warning: ‘ad5064_spi_write’ defined but not used Reported-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Signed-off-by: NJonathan Cameron <jic23@kernel.org>
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