70 static int ad5504_spi_write(struct ad5504_state *st, u8 addr, u16 val)  in ad5504_spi_write()  argument
72 	st->data[0] = cpu_to_be16(AD5504_CMD_WRITE | AD5504_ADDR(addr) |  in ad5504_spi_write()
75 	return spi_write(st->spi, &st->data[0], 2);  in ad5504_spi_write()
78 static int ad5504_spi_read(struct ad5504_state *st, u8 addr)  in ad5504_spi_read()  argument
82 	    .tx_buf = &st->data[0],  in ad5504_spi_read()
83 	    .rx_buf = &st->data[1],  in ad5504_spi_read()
87 	st->data[0] = cpu_to_be16(AD5504_CMD_READ | AD5504_ADDR(addr));  in ad5504_spi_read()
88 	ret = spi_sync_transfer(st->spi, &t, 1);  in ad5504_spi_read()
92 	return be16_to_cpu(st->data[1]) & AD5504_RES_MASK;  in ad5504_spi_read()
101 	struct ad5504_state *st = iio_priv(indio_dev);  in ad5504_read_raw()  local
106 		ret = ad5504_spi_read(st, chan->address);  in ad5504_read_raw()
114 		*val = st->vref_mv;  in ad5504_read_raw()
127 	struct ad5504_state *st = iio_priv(indio_dev);  in ad5504_write_raw()  local
134 		return ad5504_spi_write(st, chan->address, val);  in ad5504_write_raw()
148 	struct ad5504_state *st = iio_priv(indio_dev);  in ad5504_get_powerdown_mode()  local
150 	return st->pwr_down_mode;  in ad5504_get_powerdown_mode()
156 	struct ad5504_state *st = iio_priv(indio_dev);  in ad5504_set_powerdown_mode()  local
158 	st->pwr_down_mode = mode;  in ad5504_set_powerdown_mode()
173 	struct ad5504_state *st = iio_priv(indio_dev);  in ad5504_read_dac_powerdown()  local
176 			!(st->pwr_down_mask & (1 << chan->channel)));  in ad5504_read_dac_powerdown()
185 	struct ad5504_state *st = iio_priv(indio_dev);  in ad5504_write_dac_powerdown()  local
192 		st->pwr_down_mask |= (1 << chan->channel);  in ad5504_write_dac_powerdown()
194 		st->pwr_down_mask &= ~(1 << chan->channel);  in ad5504_write_dac_powerdown()
196 	ret = ad5504_spi_write(st, AD5504_ADDR_CTRL,  in ad5504_write_dac_powerdown()
197 				AD5504_DAC_PWRDWN_MODE(st->pwr_down_mode) |  in ad5504_write_dac_powerdown()
198 				AD5504_DAC_PWR(st->pwr_down_mask));  in ad5504_write_dac_powerdown()
201 	ad5504_spi_write(st, AD5504_ADDR_NOOP, 0);  in ad5504_write_dac_powerdown()
278 	struct ad5504_state *st;  in ad5504_probe()  local
282 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));  in ad5504_probe()
299 	st = iio_priv(indio_dev);  in ad5504_probe()
301 		st->vref_mv = voltage_uv / 1000;  in ad5504_probe()
303 		st->vref_mv = pdata->vref_mv;  in ad5504_probe()
307 	st->reg = reg;  in ad5504_probe()
308 	st->spi = spi;  in ad5504_probe()
310 	indio_dev->name = spi_get_device_id(st->spi)->name;  in ad5504_probe()
312 	if (spi_get_device_id(st->spi)->driver_data == ID_AD5501)  in ad5504_probe()
324 					   spi_get_device_id(st->spi)->name,  in ad5504_probe()
346 	struct ad5504_state *st = iio_priv(indio_dev);  in ad5504_remove()  local
350 	if (!IS_ERR(st->reg))  in ad5504_remove()
351 		regulator_disable(st->reg);  in ad5504_remove()