iio/dac/ad5421.c

137 	struct ad5421_state *st = iio_priv(indio_dev);
139 	st->data[0].d32 = cpu_to_be32((reg << 16) | val);
141 	return spi_write(st->spi, &st->data[0].d8[1], 3);
147 	struct ad5421_state *st = iio_priv(indio_dev);
150 	mutex_lock(&st->lock);
152 	mutex_unlock(&st->lock);
159 	struct ad5421_state *st = iio_priv(indio_dev);
163 			.tx_buf = &st->data[0].d8[1],
167 			.rx_buf = &st->data[1].d8[1],
172 	mutex_lock(&st->lock);
174 	st->data[0].d32 = cpu_to_be32((1 << 23) | (reg << 16));
176 	ret = spi_sync_transfer(st->spi, t, ARRAY_SIZE(t));
178 		ret = be32_to_cpu(st->data[1].d32) & 0xffff;
180 	mutex_unlock(&st->lock);
188 	struct ad5421_state *st = iio_priv(indio_dev);
191 	mutex_lock(&st->lock);
193 	st->ctrl &= ~clr;
194 	st->ctrl |= set;
196 	ret = ad5421_write_unlocked(indio_dev, AD5421_REG_CTRL, st->ctrl);
198 	mutex_unlock(&st->lock);
206 	struct ad5421_state *st = iio_priv(indio_dev);
239 		events &= st->fault_mask;
281 static void ad5421_get_current_min_max(struct ad5421_state *st,
286 	switch (st->current_range) {
306 static inline unsigned int ad5421_get_offset(struct ad5421_state *st)
310 	ad5421_get_current_min_max(st, &min, &max);
317 	struct ad5421_state *st = iio_priv(indio_dev);
332 		ad5421_get_current_min_max(st, &min, &max);
337 		*val = ad5421_get_offset(st);
389 	struct ad5421_state *st = iio_priv(indio_dev);
406 	mutex_lock(&st->lock);
408 		st->fault_mask |= mask;
410 		st->fault_mask &= ~mask;
411 	mutex_unlock(&st->lock);
420 	struct ad5421_state *st = iio_priv(indio_dev);
437 	return (bool)(st->fault_mask & mask);
476 	struct ad5421_state *st;
479 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
485 	st = iio_priv(indio_dev);
488 	st->spi = spi;
496 	mutex_init(&st->lock);
498 	st->ctrl = AD5421_CTRL_WATCHDOG_DISABLE |
502 		st->current_range = pdata->current_range;
504 			st->ctrl |= AD5421_CTRL_PWR_DOWN_INT_VREF;
506 		st->current_range = AD5421_CURRENT_RANGE_4mA_20mA;