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

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
...@@ -135,6 +135,29 @@ int adis_read_reg_16(struct adis *adis, unsigned int reg, uint16_t *val) ...@@ -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
......
...@@ -183,4 +183,15 @@ static inline void adis_remove_trigger(struct adis *adis) ...@@ -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
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