Commit d3e0e14d authored by Nishant Malpani's avatar Nishant Malpani Committed by Jonathan Cameron
Browse files

iio: gyro: adxrs290: Add debugfs register access support 



Extend support to read/write byte data from/to the device using
debugfs iio interface.

Signed-off-by: default avatarNishant Malpani <nish.malpani25@gmail.com>
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200910180450.29696-4-nish.malpani25@gmail.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 85434c2a

drivers/iio/gyro/adxrs290.c

+26 −0
Original line number Diff line number Diff line
@@ -436,6 +436,31 @@ static int adxrs290_read_avail(struct iio_dev *indio_dev, 
	}

}



static int adxrs290_reg_access_rw(struct spi_device *spi, unsigned int reg,

				  unsigned int *readval)

{

	int ret;



	ret = spi_w8r8(spi, ADXRS290_READ_REG(reg));

	if (ret < 0)

		return ret;



	*readval = ret;



	return 0;

}



static int adxrs290_reg_access(struct iio_dev *indio_dev, unsigned int reg,

			       unsigned int writeval, unsigned int *readval)

{

	struct adxrs290_state *st = iio_priv(indio_dev);



	if (readval)

		return adxrs290_reg_access_rw(st->spi, reg, readval);

	else

		return adxrs290_spi_write_reg(st->spi, reg, writeval);

}



static int adxrs290_data_rdy_trigger_set_state(struct iio_trigger *trig,

					       bool state)

{
@@ -551,6 +576,7 @@ static const struct iio_info adxrs290_info = { 
	.read_raw = &adxrs290_read_raw,

	.write_raw = &adxrs290_write_raw,

	.read_avail = &adxrs290_read_avail,

	.debugfs_reg_access = &adxrs290_reg_access,

};



static int adxrs290_probe_trigger(struct iio_dev *indio_dev)