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| author | Lars-Peter Clausen <lars@metafoo.de> | 2012-11-20 13:36:00 +0000 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2012-11-20 18:47:21 +0000 |
| commit | 78026a6fde8f7b0ca77c059da11f476d69dfde3b (patch) | |
| tree | abb879862232984c237630668a85e93ba9bd7bf3 | |
| parent | 709ab36e9559ff5c7df6e6f2d9e3c4a4410f8d49 (diff) | |
| download | linux-78026a6fde8f7b0ca77c059da11f476d69dfde3b.tar.gz | |
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: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| -rw-r--r-- | drivers/iio/imu/adis.c | 23 | ||||
| -rw-r--r-- | include/linux/iio/imu/adis.h | 11 |
2 files changed, 34 insertions, 0 deletions
diff --git a/drivers/iio/imu/adis.c b/drivers/iio/imu/adis.c index 8259b774078f..28d4df2fe76a 100644 --- a/drivers/iio/imu/adis.c +++ b/drivers/iio/imu/adis.c @@ -135,6 +135,29 @@ error_ret: } 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: The adis device diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index 8c3304d44b97..fce7bc3ba0b5 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -183,4 +183,15 @@ static inline void adis_remove_trigger(struct adis *adis) #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 |