174 	struct spi_device	*spi;  member
213 static int ad7877_read(struct spi_device *spi, u16 reg)  in ad7877_read()  argument
236 	status = spi_sync(spi, &req->msg);  in ad7877_read()
244 static int ad7877_write(struct spi_device *spi, u16 reg, u16 val)  in ad7877_write()  argument
261 	status = spi_sync(spi, &req->msg);  in ad7877_write()
268 static int ad7877_read_adc(struct spi_device *spi, unsigned command)  in ad7877_read_adc()  argument
270 	struct ad7877 *ts = spi_get_drvdata(spi);  in ad7877_read_adc()
323 	status = spi_sync(spi, &req->msg);  in ad7877_read_adc()
404 	error = spi_sync(ts->spi, &ts->msg);  in ad7877_irq()
406 		dev_err(&ts->spi->dev, "spi_sync --> %d\n", error);  in ad7877_irq()
426 		disable_irq(ts->spi->irq);  in ad7877_disable()
446 		enable_irq(ts->spi->irq);  in ad7877_enable()
456 	ssize_t v = ad7877_read_adc(ts->spi, \
524 	ad7877_write(ts->spi, AD7877_REG_DAC, (ts->dac << 4) | AD7877_DAC_CONF);  in ad7877_dac_store()
554 	ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |  in ad7877_gpio3_store()
585 	ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |  in ad7877_gpio4_store()
630 static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)  in ad7877_setup_ts_def_msg()  argument
642 	ad7877_write(spi, AD7877_REG_CTRL2, ts->cmd_crtl2);  in ad7877_setup_ts_def_msg()
648 	ad7877_write(spi, AD7877_REG_CTRL1, ts->cmd_crtl1);  in ad7877_setup_ts_def_msg()
679 static int ad7877_probe(struct spi_device *spi)  in ad7877_probe()  argument
683 	struct ad7877_platform_data	*pdata = dev_get_platdata(&spi->dev);  in ad7877_probe()
687 	if (!spi->irq) {  in ad7877_probe()
688 		dev_dbg(&spi->dev, "no IRQ?\n");  in ad7877_probe()
693 		dev_dbg(&spi->dev, "no platform data?\n");  in ad7877_probe()
698 	if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {  in ad7877_probe()
699 		dev_dbg(&spi->dev, "SPI CLK %d Hz?\n",spi->max_speed_hz);  in ad7877_probe()
703 	spi->bits_per_word = 16;  in ad7877_probe()
704 	err = spi_setup(spi);  in ad7877_probe()
706 		dev_dbg(&spi->dev, "spi master doesn't support 16 bits/word\n");  in ad7877_probe()
717 	spi_set_drvdata(spi, ts);  in ad7877_probe()
718 	ts->spi = spi;  in ad7877_probe()
736 	snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));  in ad7877_probe()
740 	input_dev->dev.parent = &spi->dev;  in ad7877_probe()
760 	ad7877_write(spi, AD7877_REG_SEQ1, AD7877_MM_SEQUENCE);  in ad7877_probe()
762 	verify = ad7877_read(spi, AD7877_REG_SEQ1);  in ad7877_probe()
765 		dev_err(&spi->dev, "%s: Failed to probe %s\n",  in ad7877_probe()
766 			dev_name(&spi->dev), input_dev->name);  in ad7877_probe()
772 		ad7877_write(spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_3_CONF);  in ad7877_probe()
774 	ad7877_setup_ts_def_msg(spi, ts);  in ad7877_probe()
778 	err = request_threaded_irq(spi->irq, NULL, ad7877_irq,  in ad7877_probe()
780 				   spi->dev.driver->name, ts);  in ad7877_probe()
782 		dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);  in ad7877_probe()
786 	err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group);  in ad7877_probe()
797 	sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);  in ad7877_probe()
799 	free_irq(spi->irq, ts);  in ad7877_probe()
806 static int ad7877_remove(struct spi_device *spi)  in ad7877_remove()  argument
808 	struct ad7877 *ts = spi_get_drvdata(spi);  in ad7877_remove()
810 	sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);  in ad7877_remove()
813 	free_irq(ts->spi->irq, ts);  in ad7877_remove()
818 	dev_dbg(&spi->dev, "unregistered touchscreen\n");  in ad7877_remove()