Lines Matching refs:adc
139 static int palmas_disable_auto_conversion(struct palmas_gpadc *adc) in palmas_disable_auto_conversion() argument
143 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_disable_auto_conversion()
148 dev_err(adc->dev, "GPADC_CTRL1 update failed: %d\n", ret); in palmas_disable_auto_conversion()
152 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_disable_auto_conversion()
158 dev_err(adc->dev, "AUTO_CTRL update failed: %d\n", ret); in palmas_disable_auto_conversion()
164 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_disable_auto_conversion()
168 dev_err(adc->dev, "GPADC_CTRL1 update failed: %d\n", ret); in palmas_disable_auto_conversion()
175 struct palmas_gpadc *adc = data; in palmas_gpadc_irq() local
177 complete(&adc->conv_completion); in palmas_gpadc_irq()
184 struct palmas_gpadc *adc = data; in palmas_gpadc_irq_auto() local
186 dev_dbg(adc->dev, "Threshold interrupt %d occurs\n", irq); in palmas_gpadc_irq_auto()
187 palmas_disable_auto_conversion(adc); in palmas_gpadc_irq_auto()
192 static int palmas_gpadc_start_mask_interrupt(struct palmas_gpadc *adc, in palmas_gpadc_start_mask_interrupt() argument
198 ret = palmas_update_bits(adc->palmas, PALMAS_INTERRUPT_BASE, in palmas_gpadc_start_mask_interrupt()
202 ret = palmas_update_bits(adc->palmas, PALMAS_INTERRUPT_BASE, in palmas_gpadc_start_mask_interrupt()
207 dev_err(adc->dev, "GPADC INT MASK update failed: %d\n", ret); in palmas_gpadc_start_mask_interrupt()
212 static int palmas_gpadc_enable(struct palmas_gpadc *adc, int adc_chan, in palmas_gpadc_enable() argument
219 val = (adc->extended_delay in palmas_gpadc_enable()
221 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_gpadc_enable()
225 dev_err(adc->dev, "RT_CTRL update failed: %d\n", ret); in palmas_gpadc_enable()
232 val = (adc->ch0_current in palmas_gpadc_enable()
234 val |= (adc->ch3_current in palmas_gpadc_enable()
237 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_gpadc_enable()
240 dev_err(adc->dev, in palmas_gpadc_enable()
248 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_gpadc_enable()
251 dev_err(adc->dev, "SW_SELECT update failed: %d\n", ret); in palmas_gpadc_enable()
255 ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE, in palmas_gpadc_enable()
258 dev_err(adc->dev, "SW_SELECT write failed: %d\n", ret); in palmas_gpadc_enable()
260 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_gpadc_enable()
264 dev_err(adc->dev, "CTRL1 update failed: %d\n", ret); in palmas_gpadc_enable()
272 static int palmas_gpadc_read_prepare(struct palmas_gpadc *adc, int adc_chan) in palmas_gpadc_read_prepare() argument
276 ret = palmas_gpadc_enable(adc, adc_chan, true); in palmas_gpadc_read_prepare()
280 return palmas_gpadc_start_mask_interrupt(adc, 0); in palmas_gpadc_read_prepare()
283 static void palmas_gpadc_read_done(struct palmas_gpadc *adc, int adc_chan) in palmas_gpadc_read_done() argument
285 palmas_gpadc_start_mask_interrupt(adc, 1); in palmas_gpadc_read_done()
286 palmas_gpadc_enable(adc, adc_chan, false); in palmas_gpadc_read_done()
289 static int palmas_gpadc_calibrate(struct palmas_gpadc *adc, int adc_chan) in palmas_gpadc_calibrate() argument
296 int x1 = adc->adc_info[adc_chan].x1; in palmas_gpadc_calibrate()
297 int x2 = adc->adc_info[adc_chan].x2; in palmas_gpadc_calibrate()
298 int v1 = adc->adc_info[adc_chan].v1; in palmas_gpadc_calibrate()
299 int v2 = adc->adc_info[adc_chan].v2; in palmas_gpadc_calibrate()
301 ret = palmas_read(adc->palmas, PALMAS_TRIM_GPADC_BASE, in palmas_gpadc_calibrate()
302 adc->adc_info[adc_chan].trim1_reg, &d1); in palmas_gpadc_calibrate()
304 dev_err(adc->dev, "TRIM read failed: %d\n", ret); in palmas_gpadc_calibrate()
308 ret = palmas_read(adc->palmas, PALMAS_TRIM_GPADC_BASE, in palmas_gpadc_calibrate()
309 adc->adc_info[adc_chan].trim2_reg, &d2); in palmas_gpadc_calibrate()
311 dev_err(adc->dev, "TRIM read failed: %d\n", ret); in palmas_gpadc_calibrate()
321 adc->adc_info[adc_chan].gain_error = k; in palmas_gpadc_calibrate()
322 adc->adc_info[adc_chan].gain = gain; in palmas_gpadc_calibrate()
324 adc->adc_info[adc_chan].offset = (d1 * 1000) - ((k - 1000) * x1); in palmas_gpadc_calibrate()
330 static int palmas_gpadc_start_conversion(struct palmas_gpadc *adc, int adc_chan) in palmas_gpadc_start_conversion() argument
335 init_completion(&adc->conv_completion); in palmas_gpadc_start_conversion()
336 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_gpadc_start_conversion()
341 dev_err(adc->dev, "SELECT_SW_START write failed: %d\n", ret); in palmas_gpadc_start_conversion()
345 ret = wait_for_completion_timeout(&adc->conv_completion, in palmas_gpadc_start_conversion()
348 dev_err(adc->dev, "conversion not completed\n"); in palmas_gpadc_start_conversion()
352 ret = palmas_bulk_read(adc->palmas, PALMAS_GPADC_BASE, in palmas_gpadc_start_conversion()
355 dev_err(adc->dev, "SW_CONV0_LSB read failed: %d\n", ret); in palmas_gpadc_start_conversion()
364 static int palmas_gpadc_get_calibrated_code(struct palmas_gpadc *adc, in palmas_gpadc_get_calibrated_code() argument
367 if (!adc->adc_info[adc_chan].is_uncalibrated) in palmas_gpadc_get_calibrated_code()
368 val = (val*1000 - adc->adc_info[adc_chan].offset) / in palmas_gpadc_get_calibrated_code()
369 adc->adc_info[adc_chan].gain_error; in palmas_gpadc_get_calibrated_code()
372 dev_err(adc->dev, "Mismatch with calibration\n"); in palmas_gpadc_get_calibrated_code()
376 val = (val * adc->adc_info[adc_chan].gain) / 1000; in palmas_gpadc_get_calibrated_code()
384 struct palmas_gpadc *adc = iio_priv(indio_dev); in palmas_gpadc_read_raw() local
396 ret = palmas_gpadc_read_prepare(adc, adc_chan); in palmas_gpadc_read_raw()
400 ret = palmas_gpadc_start_conversion(adc, adc_chan); in palmas_gpadc_read_raw()
402 dev_err(adc->dev, in palmas_gpadc_read_raw()
409 adc, adc_chan, ret); in palmas_gpadc_read_raw()
421 palmas_gpadc_read_done(adc, adc_chan); in palmas_gpadc_read_raw()
490 struct palmas_gpadc *adc; in palmas_gpadc_probe() local
509 indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc)); in palmas_gpadc_probe()
515 adc = iio_priv(indio_dev); in palmas_gpadc_probe()
516 adc->dev = &pdev->dev; in palmas_gpadc_probe()
517 adc->palmas = dev_get_drvdata(pdev->dev.parent); in palmas_gpadc_probe()
518 adc->adc_info = palmas_gpadc_info; in palmas_gpadc_probe()
519 init_completion(&adc->conv_completion); in palmas_gpadc_probe()
522 adc->auto_conversion_period = gpadc_pdata->auto_conversion_period_ms; in palmas_gpadc_probe()
523 adc->irq = palmas_irq_get_virq(adc->palmas, PALMAS_GPADC_EOC_SW_IRQ); in palmas_gpadc_probe()
524 if (adc->irq < 0) { in palmas_gpadc_probe()
525 dev_err(adc->dev, in palmas_gpadc_probe()
526 "get virq failed: %d\n", adc->irq); in palmas_gpadc_probe()
527 ret = adc->irq; in palmas_gpadc_probe()
530 ret = request_threaded_irq(adc->irq, NULL, in palmas_gpadc_probe()
532 IRQF_ONESHOT, dev_name(adc->dev), in palmas_gpadc_probe()
533 adc); in palmas_gpadc_probe()
535 dev_err(adc->dev, in palmas_gpadc_probe()
536 "request irq %d failed: %d\n", adc->irq, ret); in palmas_gpadc_probe()
541 memcpy(&adc->wakeup1_data, gpadc_pdata->adc_wakeup1_data, in palmas_gpadc_probe()
542 sizeof(adc->wakeup1_data)); in palmas_gpadc_probe()
543 adc->wakeup1_enable = true; in palmas_gpadc_probe()
544 adc->irq_auto_0 = platform_get_irq(pdev, 1); in palmas_gpadc_probe()
545 ret = request_threaded_irq(adc->irq_auto_0, NULL, in palmas_gpadc_probe()
548 "palmas-adc-auto-0", adc); in palmas_gpadc_probe()
550 dev_err(adc->dev, "request auto0 irq %d failed: %d\n", in palmas_gpadc_probe()
551 adc->irq_auto_0, ret); in palmas_gpadc_probe()
557 memcpy(&adc->wakeup2_data, gpadc_pdata->adc_wakeup2_data, in palmas_gpadc_probe()
558 sizeof(adc->wakeup2_data)); in palmas_gpadc_probe()
559 adc->wakeup2_enable = true; in palmas_gpadc_probe()
560 adc->irq_auto_1 = platform_get_irq(pdev, 2); in palmas_gpadc_probe()
561 ret = request_threaded_irq(adc->irq_auto_1, NULL, in palmas_gpadc_probe()
564 "palmas-adc-auto-1", adc); in palmas_gpadc_probe()
566 dev_err(adc->dev, "request auto1 irq %d failed: %d\n", in palmas_gpadc_probe()
567 adc->irq_auto_1, ret); in palmas_gpadc_probe()
574 adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_0; in palmas_gpadc_probe()
576 adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_5; in palmas_gpadc_probe()
578 adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_15; in palmas_gpadc_probe()
580 adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_20; in palmas_gpadc_probe()
584 adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_0; in palmas_gpadc_probe()
586 adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_10; in palmas_gpadc_probe()
588 adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_400; in palmas_gpadc_probe()
590 adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_800; in palmas_gpadc_probe()
592 adc->extended_delay = gpadc_pdata->extended_delay; in palmas_gpadc_probe()
602 dev_err(adc->dev, "iio_device_register() failed: %d\n", ret); in palmas_gpadc_probe()
608 if (!(adc->adc_info[i].is_uncalibrated)) in palmas_gpadc_probe()
609 palmas_gpadc_calibrate(adc, i); in palmas_gpadc_probe()
612 if (adc->wakeup1_enable || adc->wakeup2_enable) in palmas_gpadc_probe()
619 free_irq(adc->irq_auto_1, adc); in palmas_gpadc_probe()
622 free_irq(adc->irq_auto_0, adc); in palmas_gpadc_probe()
624 free_irq(adc->irq, adc); in palmas_gpadc_probe()
632 struct palmas_gpadc *adc = iio_priv(indio_dev); in palmas_gpadc_remove() local
634 if (adc->wakeup1_enable || adc->wakeup2_enable) in palmas_gpadc_remove()
637 free_irq(adc->irq, adc); in palmas_gpadc_remove()
638 if (adc->wakeup1_enable) in palmas_gpadc_remove()
639 free_irq(adc->irq_auto_0, adc); in palmas_gpadc_remove()
640 if (adc->wakeup2_enable) in palmas_gpadc_remove()
641 free_irq(adc->irq_auto_1, adc); in palmas_gpadc_remove()
647 static int palmas_adc_wakeup_configure(struct palmas_gpadc *adc) in palmas_adc_wakeup_configure() argument
655 adc_period = adc->auto_conversion_period; in palmas_adc_wakeup_configure()
663 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_configure()
668 dev_err(adc->dev, "AUTO_CTRL write failed: %d\n", ret); in palmas_adc_wakeup_configure()
673 if (adc->wakeup1_enable) { in palmas_adc_wakeup_configure()
676 ch0 = adc->wakeup1_data.adc_channel_number; in palmas_adc_wakeup_configure()
678 if (adc->wakeup1_data.adc_high_threshold > 0) { in palmas_adc_wakeup_configure()
679 thres = adc->wakeup1_data.adc_high_threshold; in palmas_adc_wakeup_configure()
682 thres = adc->wakeup1_data.adc_low_threshold; in palmas_adc_wakeup_configure()
686 ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_configure()
689 dev_err(adc->dev, in palmas_adc_wakeup_configure()
694 ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_configure()
698 dev_err(adc->dev, in palmas_adc_wakeup_configure()
704 if (adc->wakeup2_enable) { in palmas_adc_wakeup_configure()
707 ch1 = adc->wakeup2_data.adc_channel_number; in palmas_adc_wakeup_configure()
709 if (adc->wakeup2_data.adc_high_threshold > 0) { in palmas_adc_wakeup_configure()
710 thres = adc->wakeup2_data.adc_high_threshold; in palmas_adc_wakeup_configure()
713 thres = adc->wakeup2_data.adc_low_threshold; in palmas_adc_wakeup_configure()
717 ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_configure()
720 dev_err(adc->dev, in palmas_adc_wakeup_configure()
725 ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_configure()
729 dev_err(adc->dev, in palmas_adc_wakeup_configure()
735 ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_configure()
738 dev_err(adc->dev, "AUTO_SELECT write failed: %d\n", ret); in palmas_adc_wakeup_configure()
742 ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_configure()
747 dev_err(adc->dev, "AUTO_CTRL write failed: %d\n", ret); in palmas_adc_wakeup_configure()
752 static int palmas_adc_wakeup_reset(struct palmas_gpadc *adc) in palmas_adc_wakeup_reset() argument
756 ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE, in palmas_adc_wakeup_reset()
759 dev_err(adc->dev, "AUTO_SELECT write failed: %d\n", ret); in palmas_adc_wakeup_reset()
763 ret = palmas_disable_auto_conversion(adc); in palmas_adc_wakeup_reset()
765 dev_err(adc->dev, "Disable auto conversion failed: %d\n", ret); in palmas_adc_wakeup_reset()
773 struct palmas_gpadc *adc = iio_priv(indio_dev); in palmas_gpadc_suspend() local
774 int wakeup = adc->wakeup1_enable || adc->wakeup2_enable; in palmas_gpadc_suspend()
780 ret = palmas_adc_wakeup_configure(adc); in palmas_gpadc_suspend()
784 if (adc->wakeup1_enable) in palmas_gpadc_suspend()
785 enable_irq_wake(adc->irq_auto_0); in palmas_gpadc_suspend()
787 if (adc->wakeup2_enable) in palmas_gpadc_suspend()
788 enable_irq_wake(adc->irq_auto_1); in palmas_gpadc_suspend()
796 struct palmas_gpadc *adc = iio_priv(indio_dev); in palmas_gpadc_resume() local
797 int wakeup = adc->wakeup1_enable || adc->wakeup2_enable; in palmas_gpadc_resume()
803 ret = palmas_adc_wakeup_reset(adc); in palmas_gpadc_resume()
807 if (adc->wakeup1_enable) in palmas_gpadc_resume()
808 disable_irq_wake(adc->irq_auto_0); in palmas_gpadc_resume()
810 if (adc->wakeup2_enable) in palmas_gpadc_resume()
811 disable_irq_wake(adc->irq_auto_1); in palmas_gpadc_resume()