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Commit 78026a6f authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron
Browse files

iio:imu:adis: Add debugfs register access support 



Provide a IIO debugfs register access function for the ADIS library. This
function can be used by individual drivers to allow raw register access via
debugfs.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 709ab36e

drivers/iio/imu/adis.c

+23 −0
Original line number Original line Diff line number Diff line
@@ -135,6 +135,29 @@ int adis_read_reg_16(struct adis *adis, unsigned int reg, uint16_t *val) 
}

}

EXPORT_SYMBOL_GPL(adis_read_reg_16);

EXPORT_SYMBOL_GPL(adis_read_reg_16);





#ifdef CONFIG_DEBUG_FS



int adis_debugfs_reg_access(struct iio_dev *indio_dev,

	unsigned int reg, unsigned int writeval, unsigned int *readval)

{

	struct adis *adis = iio_device_get_drvdata(indio_dev);



	if (readval) {

		uint16_t val16;

		int ret;



		ret = adis_read_reg_16(adis, reg, &val16);

		*readval = val16;



		return ret;

	} else {

		return adis_write_reg_16(adis, reg, writeval);

	}

}

EXPORT_SYMBOL(adis_debugfs_reg_access);



#endif



/**

/**

 * adis_enable_irq() - Enable or disable data ready IRQ

 * adis_enable_irq() - Enable or disable data ready IRQ

 * @adis: The adis device

 * @adis: The adis device

include/linux/iio/imu/adis.h

+11 −0
Original line number Original line Diff line number Diff line
@@ -183,4 +183,15 @@ static inline void adis_remove_trigger(struct adis *adis) 




#endif /* CONFIG_IIO_BUFFER */

#endif /* CONFIG_IIO_BUFFER */





#ifdef CONFIG_DEBUG_FS



int adis_debugfs_reg_access(struct iio_dev *indio_dev,

	unsigned int reg, unsigned int writeval, unsigned int *readval);



#else



#define adis_debugfs_reg_access NULL



#endif



#endif
 
#endif