From 78026a6fde8f7b0ca77c059da11f476d69dfde3b Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 20 Nov 2012 13:36:00 +0000 Subject: 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 Signed-off-by: Jonathan Cameron --- drivers/iio/imu/adis.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/iio/imu/adis.c') 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 -- cgit v1.2.3