56 	struct spi_device *spi = to_spi_device(dev);  in ds1390_set_reg()  local
63 	spi_write(spi, buf, 2);  in ds1390_set_reg()
69 	struct spi_device *spi = to_spi_device(dev);  in ds1390_get_reg()  local
79 	status = spi_write_then_read(spi, chip->txrx_buf, 1, chip->txrx_buf, 1);  in ds1390_get_reg()
88 static void ds1390_trickle_of_init(struct spi_device *spi)  in ds1390_trickle_of_init()  argument
93 	if (of_property_read_u32(spi->dev.of_node, "trickle-resistor-ohms",  in ds1390_trickle_of_init()
99 	if (of_property_read_bool(spi->dev.of_node, "trickle-diode-disable"))  in ds1390_trickle_of_init()
116 		dev_warn(&spi->dev,  in ds1390_trickle_of_init()
121 	ds1390_set_reg(&spi->dev, DS1390_REG_TRICKLE, value);  in ds1390_trickle_of_init()
129 	struct spi_device *spi = to_spi_device(dev);  in ds1390_read_time()  local
137 	status = spi_write_then_read(spi, chip->txrx_buf, 1, chip->txrx_buf, 7);  in ds1390_read_time()
158 	struct spi_device *spi = to_spi_device(dev);  in ds1390_set_time()  local
173 	return spi_write_then_read(spi, chip->txrx_buf, 8, NULL, 0);  in ds1390_set_time()
181 static int ds1390_probe(struct spi_device *spi)  in ds1390_probe()  argument
187 	spi->mode = SPI_MODE_3;  in ds1390_probe()
188 	spi->bits_per_word = 8;  in ds1390_probe()
189 	spi_setup(spi);  in ds1390_probe()
191 	chip = devm_kzalloc(&spi->dev, sizeof(*chip), GFP_KERNEL);  in ds1390_probe()
195 	spi_set_drvdata(spi, chip);  in ds1390_probe()
197 	res = ds1390_get_reg(&spi->dev, DS1390_REG_SECONDS, &tmp);  in ds1390_probe()
199 		dev_err(&spi->dev, "unable to read device\n");  in ds1390_probe()
203 	if (spi->dev.of_node)  in ds1390_probe()
204 		ds1390_trickle_of_init(spi);  in ds1390_probe()
206 	chip->rtc = devm_rtc_device_register(&spi->dev, "ds1390",  in ds1390_probe()
209 		dev_err(&spi->dev, "unable to register device\n");  in ds1390_probe()
226 MODULE_DEVICE_TABLE(spi, ds1390_spi_ids);