53 static u32 get_adc_step_mask(struct tiadc_device *adc_dev)  in get_adc_step_mask()  argument
57 	step_en = ((1 << adc_dev->channels) - 1);  in get_adc_step_mask()
58 	step_en <<= TOTAL_STEPS - adc_dev->channels + 1;  in get_adc_step_mask()
62 static u32 get_adc_chan_step_mask(struct tiadc_device *adc_dev,  in get_adc_chan_step_mask()  argument
67 	for (i = 0; i < ARRAY_SIZE(adc_dev->channel_step); i++) {  in get_adc_chan_step_mask()
68 		if (chan->channel == adc_dev->channel_line[i]) {  in get_adc_chan_step_mask()
71 			step = adc_dev->channel_step[i];  in get_adc_chan_step_mask()
80 static u32 get_adc_step_bit(struct tiadc_device *adc_dev, int chan)  in get_adc_step_bit()  argument
82 	return 1 << adc_dev->channel_step[chan];  in get_adc_step_bit()
87 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_step_config()  local
107 	for (i = 0; i < adc_dev->channels; i++) {  in tiadc_step_config()
110 		chan = adc_dev->channel_line[i];  in tiadc_step_config()
111 		tiadc_writel(adc_dev, REG_STEPCONFIG(steps),  in tiadc_step_config()
113 		tiadc_writel(adc_dev, REG_STEPDELAY(steps),  in tiadc_step_config()
115 		adc_dev->channel_step[i] = steps;  in tiadc_step_config()
123 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_irq_h()  local
125 	status = tiadc_readl(adc_dev, REG_IRQSTATUS);  in tiadc_irq_h()
133 		config = tiadc_readl(adc_dev, REG_CTRL);  in tiadc_irq_h()
135 		tiadc_writel(adc_dev, REG_CTRL, config);  in tiadc_irq_h()
136 		tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1OVRRUN  in tiadc_irq_h()
138 		tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_TSCSSENB));  in tiadc_irq_h()
142 		tiadc_writel(adc_dev, REG_IRQCLR, IRQENB_FIFO1THRES);  in tiadc_irq_h()
152 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_worker_h()  local
154 	u16 *data = adc_dev->data;  in tiadc_worker_h()
156 	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);  in tiadc_worker_h()
159 			read = tiadc_readl(adc_dev, REG_FIFO1);  in tiadc_worker_h()
165 	tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1THRES);  in tiadc_worker_h()
166 	tiadc_writel(adc_dev, REG_IRQENABLE, IRQENB_FIFO1THRES);  in tiadc_worker_h()
173 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_buffer_preenable()  local
176 	tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |  in tiadc_buffer_preenable()
181 	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);  in tiadc_buffer_preenable()
183 		read = tiadc_readl(adc_dev, REG_FIFO1);  in tiadc_buffer_preenable()
190 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_buffer_postenable()  local
195 	for_each_set_bit(bit, indio_dev->active_scan_mask, adc_dev->channels)  in tiadc_buffer_postenable()
196 		enb |= (get_adc_step_bit(adc_dev, bit) << 1);  in tiadc_buffer_postenable()
197 	adc_dev->buffer_en_ch_steps = enb;  in tiadc_buffer_postenable()
199 	am335x_tsc_se_set_cache(adc_dev->mfd_tscadc, enb);  in tiadc_buffer_postenable()
201 	tiadc_writel(adc_dev,  REG_IRQSTATUS, IRQENB_FIFO1THRES  in tiadc_buffer_postenable()
203 	tiadc_writel(adc_dev,  REG_IRQENABLE, IRQENB_FIFO1THRES  in tiadc_buffer_postenable()
211 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_buffer_predisable()  local
214 	tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |  in tiadc_buffer_predisable()
216 	am335x_tsc_se_clr(adc_dev->mfd_tscadc, adc_dev->buffer_en_ch_steps);  in tiadc_buffer_predisable()
217 	adc_dev->buffer_en_ch_steps = 0;  in tiadc_buffer_predisable()
220 	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);  in tiadc_buffer_predisable()
222 		read = tiadc_readl(adc_dev, REG_FIFO1);  in tiadc_buffer_predisable()
274 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_iio_buffered_hardware_remove()  local
276 	free_irq(adc_dev->mfd_tscadc->irq, indio_dev);  in tiadc_iio_buffered_hardware_remove()
294 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_channel_init()  local
310 		chan->channel = adc_dev->channel_line[i];  in tiadc_channel_init()
333 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_read_raw()  local
343 	step_en = get_adc_chan_step_mask(adc_dev, chan);  in tiadc_read_raw()
347 	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);  in tiadc_read_raw()
349 		tiadc_readl(adc_dev, REG_FIFO1);  in tiadc_read_raw()
351 	am335x_tsc_se_set_once(adc_dev->mfd_tscadc, step_en);  in tiadc_read_raw()
354 				(IDLE_TIMEOUT * adc_dev->channels);  in tiadc_read_raw()
357 		fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);  in tiadc_read_raw()
362 			am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);  in tiadc_read_raw()
366 	map_val = adc_dev->channel_step[chan->scan_index];  in tiadc_read_raw()
376 		read = tiadc_readl(adc_dev, REG_FIFO1);  in tiadc_read_raw()
386 	am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);  in tiadc_read_raw()
401 	struct tiadc_device	*adc_dev;  in tiadc_probe()  local
420 	adc_dev = iio_priv(indio_dev);  in tiadc_probe()
422 	adc_dev->mfd_tscadc = ti_tscadc_dev_get(pdev);  in tiadc_probe()
425 		adc_dev->channel_line[channels] = val;  in tiadc_probe()
428 	adc_dev->channels = channels;  in tiadc_probe()
436 	tiadc_writel(adc_dev, REG_FIFO1THR, FIFO1_THRESHOLD);  in tiadc_probe()
438 	err = tiadc_channel_init(indio_dev, adc_dev->channels);  in tiadc_probe()
445 		adc_dev->mfd_tscadc->irq,  in tiadc_probe()
470 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_remove()  local
477 	step_en = get_adc_step_mask(adc_dev);  in tiadc_remove()
478 	am335x_tsc_se_clr(adc_dev->mfd_tscadc, step_en);  in tiadc_remove()
487 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_suspend()  local
493 		idle = tiadc_readl(adc_dev, REG_CTRL);  in tiadc_suspend()
495 		tiadc_writel(adc_dev, REG_CTRL, (idle |  in tiadc_suspend()
505 	struct tiadc_device *adc_dev = iio_priv(indio_dev);  in tiadc_resume()  local
509 	restore = tiadc_readl(adc_dev, REG_CTRL);  in tiadc_resume()
511 	tiadc_writel(adc_dev, REG_CTRL, restore);  in tiadc_resume()
514 	am335x_tsc_se_set_cache(adc_dev->mfd_tscadc,  in tiadc_resume()
515 			adc_dev->buffer_en_ch_steps);  in tiadc_resume()