87 typedef int (*ad5064_write_func)(struct ad5064_state *st, unsigned int cmd,
192 static int ad5064_write(struct ad5064_state *st, unsigned int cmd,  in ad5064_write()  argument
197 	return st->write(st, cmd, addr, val);  in ad5064_write()
200 static int ad5064_sync_powerdown_mode(struct ad5064_state *st,  in ad5064_sync_powerdown_mode()  argument
207 	if (st->chip_info->regmap_type == AD5064_REGMAP_LTC) {  in ad5064_sync_powerdown_mode()
211 		if (st->chip_info->regmap_type == AD5064_REGMAP_ADI2)  in ad5064_sync_powerdown_mode()
219 		if (st->pwr_down[chan->channel])  in ad5064_sync_powerdown_mode()
220 			val |= st->pwr_down_mode[chan->channel] << shift;  in ad5064_sync_powerdown_mode()
223 	ret = ad5064_write(st, AD5064_CMD_POWERDOWN_DAC, address, val, 0);  in ad5064_sync_powerdown_mode()
241 	struct ad5064_state *st = iio_priv(indio_dev);  in ad5064_get_powerdown_mode()  local
243 	return st->pwr_down_mode[chan->channel] - 1;  in ad5064_get_powerdown_mode()
249 	struct ad5064_state *st = iio_priv(indio_dev);  in ad5064_set_powerdown_mode()  local
252 	mutex_lock(&st->lock);  in ad5064_set_powerdown_mode()
253 	st->pwr_down_mode[chan->channel] = mode + 1;  in ad5064_set_powerdown_mode()
255 	ret = ad5064_sync_powerdown_mode(st, chan);  in ad5064_set_powerdown_mode()
256 	mutex_unlock(&st->lock);  in ad5064_set_powerdown_mode()
278 	struct ad5064_state *st = iio_priv(indio_dev);  in ad5064_read_dac_powerdown()  local
280 	return sysfs_emit(buf, "%d\n", st->pwr_down[chan->channel]);  in ad5064_read_dac_powerdown()
287 	struct ad5064_state *st = iio_priv(indio_dev);  in ad5064_write_dac_powerdown()  local
295 	mutex_lock(&st->lock);  in ad5064_write_dac_powerdown()
296 	st->pwr_down[chan->channel] = pwr_down;  in ad5064_write_dac_powerdown()
298 	ret = ad5064_sync_powerdown_mode(st, chan);  in ad5064_write_dac_powerdown()
299 	mutex_unlock(&st->lock);  in ad5064_write_dac_powerdown()
303 static int ad5064_get_vref(struct ad5064_state *st,  in ad5064_get_vref()  argument
308 	if (st->use_internal_vref)  in ad5064_get_vref()
309 		return st->chip_info->internal_vref;  in ad5064_get_vref()
311 	i = st->chip_info->shared_vref ? 0 : chan->channel;  in ad5064_get_vref()
312 	return regulator_get_voltage(st->vref_reg[i].consumer);  in ad5064_get_vref()
321 	struct ad5064_state *st = iio_priv(indio_dev);  in ad5064_read_raw()  local
326 		*val = st->dac_cache[chan->channel];  in ad5064_read_raw()
329 		scale_uv = ad5064_get_vref(st, chan);  in ad5064_read_raw()
345 	struct ad5064_state *st = iio_priv(indio_dev);  in ad5064_write_raw()  local
353 		mutex_lock(&st->lock);  in ad5064_write_raw()
354 		ret = ad5064_write(st, AD5064_CMD_WRITE_INPUT_N_UPDATE_N,  in ad5064_write_raw()
357 			st->dac_cache[chan->channel] = val;  in ad5064_write_raw()
358 		mutex_unlock(&st->lock);  in ad5064_write_raw()
778 static inline unsigned int ad5064_num_vref(struct ad5064_state *st)  in ad5064_num_vref()  argument
780 	return st->chip_info->shared_vref ? 1 : st->chip_info->num_channels;  in ad5064_num_vref()
790 static const char *ad5064_vref_name(struct ad5064_state *st,  in ad5064_vref_name()  argument
793 	return st->chip_info->shared_vref ? "vref" : ad5064_vref_names[vref];  in ad5064_vref_name()
796 static int ad5064_set_config(struct ad5064_state *st, unsigned int val)  in ad5064_set_config()  argument
800 	switch (st->chip_info->regmap_type) {  in ad5064_set_config()
809 	return ad5064_write(st, cmd, 0, val, 0);  in ad5064_set_config()
812 static int ad5064_request_vref(struct ad5064_state *st, struct device *dev)  in ad5064_request_vref()  argument
817 	for (i = 0; i < ad5064_num_vref(st); ++i)  in ad5064_request_vref()
818 		st->vref_reg[i].supply = ad5064_vref_name(st, i);  in ad5064_request_vref()
820 	if (!st->chip_info->internal_vref)  in ad5064_request_vref()
821 		return devm_regulator_bulk_get(dev, ad5064_num_vref(st),  in ad5064_request_vref()
822 					       st->vref_reg);  in ad5064_request_vref()
829 	st->vref_reg[0].consumer = devm_regulator_get_optional(dev, "vref");  in ad5064_request_vref()
830 	if (!IS_ERR(st->vref_reg[0].consumer))  in ad5064_request_vref()
833 	ret = PTR_ERR(st->vref_reg[0].consumer);  in ad5064_request_vref()
838 	st->use_internal_vref = true;  in ad5064_request_vref()
839 	ret = ad5064_set_config(st, AD5064_CONFIG_INT_VREF_ENABLE);  in ad5064_request_vref()
848 	struct ad5064_state *st = data;  in ad5064_bulk_reg_disable()  local
850 	regulator_bulk_disable(ad5064_num_vref(st), st->vref_reg);  in ad5064_bulk_reg_disable()
857 	struct ad5064_state *st;  in ad5064_probe()  local
862 	indio_dev = devm_iio_device_alloc(dev, sizeof(*st));  in ad5064_probe()
866 	st = iio_priv(indio_dev);  in ad5064_probe()
867 	mutex_init(&st->lock);  in ad5064_probe()
869 	st->chip_info = &ad5064_chip_info_tbl[type];  in ad5064_probe()
870 	st->dev = dev;  in ad5064_probe()
871 	st->write = write;  in ad5064_probe()
873 	ret = ad5064_request_vref(st, dev);  in ad5064_probe()
877 	if (!st->use_internal_vref) {  in ad5064_probe()
878 		ret = regulator_bulk_enable(ad5064_num_vref(st), st->vref_reg);  in ad5064_probe()
882 		ret = devm_add_action_or_reset(dev, ad5064_bulk_reg_disable, st);  in ad5064_probe()
890 	indio_dev->channels = st->chip_info->channels;  in ad5064_probe()
891 	indio_dev->num_channels = st->chip_info->num_channels;  in ad5064_probe()
895 	for (i = 0; i < st->chip_info->num_channels; ++i) {  in ad5064_probe()
896 		st->pwr_down_mode[i] = AD5064_LDAC_PWRDN_1K;  in ad5064_probe()
897 		st->dac_cache[i] = midscale;  in ad5064_probe()
905 static int ad5064_spi_write(struct ad5064_state *st, unsigned int cmd,  in ad5064_spi_write()  argument
908 	struct spi_device *spi = to_spi_device(st->dev);  in ad5064_spi_write()
910 	st->data.spi = cpu_to_be32(AD5064_CMD(cmd) | AD5064_ADDR(addr) | val);  in ad5064_spi_write()
911 	return spi_write(spi, &st->data.spi, sizeof(st->data.spi));  in ad5064_spi_write()
970 static int ad5064_i2c_write(struct ad5064_state *st, unsigned int cmd,  in ad5064_i2c_write()  argument
973 	struct i2c_client *i2c = to_i2c_client(st->dev);  in ad5064_i2c_write()
977 	switch (st->chip_info->regmap_type) {  in ad5064_i2c_write()
986 	st->data.i2c[0] = (cmd << cmd_shift) | addr;  in ad5064_i2c_write()
987 	put_unaligned_be16(val, &st->data.i2c[1]);  in ad5064_i2c_write()
989 	ret = i2c_master_send(i2c, st->data.i2c, 3);  in ad5064_i2c_write()