90 	struct spi_device *spi = to_spi_device(dev);  in pcf2123_show()  local
103 	ret = spi_write_then_read(spi, txbuf, 1, rxbuf, 1);  in pcf2123_show()
112 	struct spi_device *spi = to_spi_device(dev);  in pcf2123_store()  local
132 	ret = spi_write(spi, txbuf, sizeof(txbuf));  in pcf2123_store()
141 	struct spi_device *spi = to_spi_device(dev);  in pcf2123_rtc_read_time()  local
146 	ret = spi_write_then_read(spi, txbuf, sizeof(txbuf),  in pcf2123_rtc_read_time()
173 	struct spi_device *spi = to_spi_device(dev);  in pcf2123_rtc_set_time()  local
186 	ret = spi_write(spi, txbuf, 2);  in pcf2123_rtc_set_time()
201 	ret = spi_write(spi, txbuf, sizeof(txbuf));  in pcf2123_rtc_set_time()
209 	ret = spi_write(spi, txbuf, 2);  in pcf2123_rtc_set_time()
222 static int pcf2123_probe(struct spi_device *spi)  in pcf2123_probe()  argument
229 	pdata = devm_kzalloc(&spi->dev, sizeof(struct pcf2123_plat_data),  in pcf2123_probe()
233 	spi->dev.platform_data = pdata;  in pcf2123_probe()
238 	dev_dbg(&spi->dev, "resetting RTC (0x%02X 0x%02X)\n",  in pcf2123_probe()
240 	ret = spi_write(spi, txbuf, 2 * sizeof(u8));  in pcf2123_probe()
248 	dev_dbg(&spi->dev, "stopping RTC (0x%02X 0x%02X)\n",  in pcf2123_probe()
250 	ret = spi_write(spi, txbuf, 2 * sizeof(u8));  in pcf2123_probe()
257 	dev_dbg(&spi->dev, "checking for presence of RTC (0x%02X)\n",  in pcf2123_probe()
259 	ret = spi_write_then_read(spi, txbuf, 1 * sizeof(u8),  in pcf2123_probe()
261 	dev_dbg(&spi->dev, "received data from RTC (0x%02X 0x%02X)\n",  in pcf2123_probe()
268 		dev_err(&spi->dev, "chip not found\n");  in pcf2123_probe()
273 	dev_info(&spi->dev, "chip found, driver version " DRV_VERSION "\n");  in pcf2123_probe()
274 	dev_info(&spi->dev, "spiclk %u KHz.\n",  in pcf2123_probe()
275 			(spi->max_speed_hz + 500) / 1000);  in pcf2123_probe()
280 	ret = spi_write(spi, txbuf, sizeof(txbuf));  in pcf2123_probe()
286 	rtc = devm_rtc_device_register(&spi->dev, pcf2123_driver.driver.name,  in pcf2123_probe()
290 		dev_err(&spi->dev, "failed to register.\n");  in pcf2123_probe()
304 		ret = device_create_file(&spi->dev, &pdata->regs[i].attr);  in pcf2123_probe()
306 			dev_err(&spi->dev, "Unable to create sysfs %s\n",  in pcf2123_probe()
316 		device_remove_file(&spi->dev, &pdata->regs[i].attr);  in pcf2123_probe()
319 	spi->dev.platform_data = NULL;  in pcf2123_probe()
323 static int pcf2123_remove(struct spi_device *spi)  in pcf2123_remove()  argument
325 	struct pcf2123_plat_data *pdata = dev_get_platdata(&spi->dev);  in pcf2123_remove()
331 				device_remove_file(&spi->dev,  in pcf2123_remove()