39 	struct spi_device	*spi = dev_get_drvdata(dev);  in ds1302_rtc_set_time()  local
49 	status = spi_write_then_read(spi, buf, 2,  in ds1302_rtc_set_time()
68 	return spi_write_then_read(spi, buf, sizeof(buf),  in ds1302_rtc_set_time()
74 	struct spi_device	*spi = dev_get_drvdata(dev);  in ds1302_rtc_get_time()  local
82 	status = spi_write_then_read(spi, &addr, sizeof(addr),  in ds1302_rtc_get_time()
104 static int ds1302_probe(struct spi_device *spi)  in ds1302_probe()  argument
116 	if (spi->bits_per_word && (spi->bits_per_word != 8)) {  in ds1302_probe()
117 		dev_err(&spi->dev, "bad word length\n");  in ds1302_probe()
119 	} else if (spi->max_speed_hz > 2000000) {  in ds1302_probe()
120 		dev_err(&spi->dev, "speed is too high\n");  in ds1302_probe()
122 	} else if (spi->mode & SPI_CPHA) {  in ds1302_probe()
123 		dev_err(&spi->dev, "bad mode\n");  in ds1302_probe()
128 	status = spi_write_then_read(spi, &addr, sizeof(addr), buf, 1);  in ds1302_probe()
130 		dev_err(&spi->dev, "control register read error %d\n",  in ds1302_probe()
136 		status = spi_write_then_read(spi, &addr, sizeof(addr), buf, 1);  in ds1302_probe()
138 			dev_err(&spi->dev, "control register read error %d\n",  in ds1302_probe()
144 			dev_err(&spi->dev, "junk in control register\n");  in ds1302_probe()
153 		status = spi_write_then_read(spi, buf, 2, NULL, 0);  in ds1302_probe()
155 			dev_err(&spi->dev, "control register write error %d\n",  in ds1302_probe()
161 		status = spi_write_then_read(spi, &addr, sizeof(addr), buf, 1);  in ds1302_probe()
163 			dev_err(&spi->dev,  in ds1302_probe()
170 			dev_err(&spi->dev, "failed to detect chip\n");  in ds1302_probe()
175 	spi_set_drvdata(spi, spi);  in ds1302_probe()
177 	rtc = devm_rtc_device_register(&spi->dev, "ds1302",  in ds1302_probe()
181 		dev_err(&spi->dev, "error %d registering rtc\n", status);  in ds1302_probe()
200 MODULE_DEVICE_TABLE(spi, ds1302_spi_ids);