60 static int mcp4922_spi_write(struct mcp4922_state *state, u8 addr, u32 val)  in mcp4922_spi_write()  argument
62 	state->mosi[1] = val & 0xff;  in mcp4922_spi_write()
63 	state->mosi[0] = (addr == 0) ? 0x00 : 0x80;  in mcp4922_spi_write()
64 	state->mosi[0] |= 0x30 | ((val >> 8) & 0x0f);  in mcp4922_spi_write()
66 	return spi_write(state->spi, state->mosi, 2);  in mcp4922_spi_write()
75 	struct mcp4922_state *state = iio_priv(indio_dev);  in mcp4922_read_raw()  local
79 		*val = state->value[chan->channel];  in mcp4922_read_raw()
82 		*val = state->vref_mv;  in mcp4922_read_raw()
96 	struct mcp4922_state *state = iio_priv(indio_dev);  in mcp4922_write_raw()  local
106 		state->value[chan->channel] = val;  in mcp4922_write_raw()
107 		return mcp4922_spi_write(state, chan->channel, val);  in mcp4922_write_raw()
128 	struct mcp4922_state *state;  in mcp4922_probe()  local
132 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*state));  in mcp4922_probe()
136 	state = iio_priv(indio_dev);  in mcp4922_probe()
137 	state->spi = spi;  in mcp4922_probe()
138 	state->vref_reg = devm_regulator_get(&spi->dev, "vref");  in mcp4922_probe()
139 	if (IS_ERR(state->vref_reg)) {  in mcp4922_probe()
141 		return PTR_ERR(state->vref_reg);  in mcp4922_probe()
144 	ret = regulator_enable(state->vref_reg);  in mcp4922_probe()
151 	ret = regulator_get_voltage(state->vref_reg);  in mcp4922_probe()
157 	state->vref_mv = ret / 1000;  in mcp4922_probe()
178 	regulator_disable(state->vref_reg);  in mcp4922_probe()
186 	struct mcp4922_state *state;  in mcp4922_remove()  local
189 	state = iio_priv(indio_dev);  in mcp4922_remove()
190 	regulator_disable(state->vref_reg);  in mcp4922_remove()