Lines Matching full:st
333 #define at91_adc_readl(st, reg) readl_relaxed(st->base + reg) argument
334 #define at91_adc_writel(st, reg, val) writel_relaxed(val, st->base + reg) argument
509 static void at91_adc_config_emr(struct at91_adc_state *st) in at91_adc_config_emr() argument
512 unsigned int emr = at91_adc_readl(st, AT91_SAMA5D2_EMR); in at91_adc_config_emr()
521 switch (st->oversampling_ratio) { in at91_adc_config_emr()
536 at91_adc_writel(st, AT91_SAMA5D2_EMR, emr); in at91_adc_config_emr()
539 static int at91_adc_adjust_val_osr(struct at91_adc_state *st, int *val) in at91_adc_adjust_val_osr() argument
541 if (st->oversampling_ratio == AT91_OSR_1SAMPLES) { in at91_adc_adjust_val_osr()
547 } else if (st->oversampling_ratio == AT91_OSR_4SAMPLES) { in at91_adc_adjust_val_osr()
558 static void at91_adc_adjust_val_osr_array(struct at91_adc_state *st, void *buf, in at91_adc_adjust_val_osr_array() argument
574 at91_adc_adjust_val_osr(st, &val); in at91_adc_adjust_val_osr_array()
580 static int at91_adc_configure_touch(struct at91_adc_state *st, bool state) in at91_adc_configure_touch() argument
582 u32 clk_khz = st->current_sample_rate / 1000; in at91_adc_configure_touch()
589 at91_adc_writel(st, AT91_SAMA5D2_IDR, in at91_adc_configure_touch()
591 at91_adc_writel(st, AT91_SAMA5D2_TSMR, 0); in at91_adc_configure_touch()
617 at91_adc_writel(st, AT91_SAMA5D2_TSMR, tsmr); in at91_adc_configure_touch()
619 acr = at91_adc_readl(st, AT91_SAMA5D2_ACR); in at91_adc_configure_touch()
622 at91_adc_writel(st, AT91_SAMA5D2_ACR, acr); in at91_adc_configure_touch()
625 st->touch_st.sample_period_val = in at91_adc_configure_touch()
629 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_PEN); in at91_adc_configure_touch()
634 static u16 at91_adc_touch_pos(struct at91_adc_state *st, int reg) in at91_adc_touch_pos() argument
645 val = at91_adc_readl(st, reg); in at91_adc_touch_pos()
647 dev_dbg(&st->indio_dev->dev, "pos is 0\n"); in at91_adc_touch_pos()
653 dev_err(&st->indio_dev->dev, "scale is 0\n"); in at91_adc_touch_pos()
661 static u16 at91_adc_touch_x_pos(struct at91_adc_state *st) in at91_adc_touch_x_pos() argument
663 st->touch_st.x_pos = at91_adc_touch_pos(st, AT91_SAMA5D2_XPOSR); in at91_adc_touch_x_pos()
664 return st->touch_st.x_pos; in at91_adc_touch_x_pos()
667 static u16 at91_adc_touch_y_pos(struct at91_adc_state *st) in at91_adc_touch_y_pos() argument
669 return at91_adc_touch_pos(st, AT91_SAMA5D2_YPOSR); in at91_adc_touch_y_pos()
672 static u16 at91_adc_touch_pressure(struct at91_adc_state *st) in at91_adc_touch_pressure() argument
681 val = at91_adc_readl(st, AT91_SAMA5D2_PRESSR); in at91_adc_touch_pressure()
686 pres = rxp * (st->touch_st.x_pos * factor / 1024) * in at91_adc_touch_pressure()
700 static int at91_adc_read_position(struct at91_adc_state *st, int chan, u16 *val) in at91_adc_read_position() argument
703 if (!st->touch_st.touching) in at91_adc_read_position()
706 *val = at91_adc_touch_x_pos(st); in at91_adc_read_position()
708 *val = at91_adc_touch_y_pos(st); in at91_adc_read_position()
715 static int at91_adc_read_pressure(struct at91_adc_state *st, int chan, u16 *val) in at91_adc_read_pressure() argument
718 if (!st->touch_st.touching) in at91_adc_read_pressure()
721 *val = at91_adc_touch_pressure(st); in at91_adc_read_pressure()
731 struct at91_adc_state *st = iio_priv(indio); in at91_adc_configure_trigger() local
732 u32 status = at91_adc_readl(st, AT91_SAMA5D2_TRGR); in at91_adc_configure_trigger()
738 status |= st->selected_trig->trgmod_value; in at91_adc_configure_trigger()
741 at91_adc_writel(st, AT91_SAMA5D2_TRGR, status); in at91_adc_configure_trigger()
749 struct at91_adc_state *st = iio_priv(indio); in at91_adc_reenable_trigger() local
752 if (st->dma_st.dma_chan) in at91_adc_reenable_trigger()
755 enable_irq(st->irq); in at91_adc_reenable_trigger()
758 at91_adc_readl(st, AT91_SAMA5D2_LCDR); in at91_adc_reenable_trigger()
767 static int at91_adc_dma_size_done(struct at91_adc_state *st) in at91_adc_dma_size_done() argument
773 status = dmaengine_tx_status(st->dma_st.dma_chan, in at91_adc_dma_size_done()
774 st->dma_st.dma_chan->cookie, in at91_adc_dma_size_done()
780 i = st->dma_st.rx_buf_sz - state.residue; in at91_adc_dma_size_done()
783 if (i >= st->dma_st.buf_idx) in at91_adc_dma_size_done()
784 size = i - st->dma_st.buf_idx; in at91_adc_dma_size_done()
786 size = st->dma_st.rx_buf_sz + i - st->dma_st.buf_idx; in at91_adc_dma_size_done()
799 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_dma_start() local
805 if (!st->dma_st.dma_chan) in at91_adc_dma_start()
809 st->dma_st.buf_idx = 0; in at91_adc_dma_start()
815 st->dma_st.rx_buf_sz = 0; in at91_adc_dma_start()
825 st->dma_st.rx_buf_sz += chan->scan_type.storagebits / 8; in at91_adc_dma_start()
827 st->dma_st.rx_buf_sz *= st->dma_st.watermark; in at91_adc_dma_start()
830 desc = dmaengine_prep_dma_cyclic(st->dma_st.dma_chan, in at91_adc_dma_start()
831 st->dma_st.rx_dma_buf, in at91_adc_dma_start()
832 st->dma_st.rx_buf_sz, in at91_adc_dma_start()
833 st->dma_st.rx_buf_sz / 2, in at91_adc_dma_start()
848 dmaengine_terminate_async(st->dma_st.dma_chan); in at91_adc_dma_start()
853 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_GOVRE); in at91_adc_dma_start()
855 dma_async_issue_pending(st->dma_st.dma_chan); in at91_adc_dma_start()
858 st->dma_st.dma_ts = iio_get_time_ns(indio_dev); in at91_adc_dma_start()
866 struct at91_adc_state *st) in at91_adc_buffer_check_use_irq() argument
869 if (st->dma_st.dma_chan) in at91_adc_buffer_check_use_irq()
879 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_current_chan_is_touch() local
882 &st->touch_st.channels_bitmask, in at91_adc_current_chan_is_touch()
890 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_buffer_prepare() local
894 return at91_adc_configure_touch(st, true); in at91_adc_buffer_prepare()
920 cor = at91_adc_readl(st, AT91_SAMA5D2_COR); in at91_adc_buffer_prepare()
929 at91_adc_writel(st, AT91_SAMA5D2_COR, cor); in at91_adc_buffer_prepare()
931 at91_adc_writel(st, AT91_SAMA5D2_CHER, BIT(chan->channel)); in at91_adc_buffer_prepare()
934 if (at91_adc_buffer_check_use_irq(indio_dev, st)) in at91_adc_buffer_prepare()
935 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_DRDY); in at91_adc_buffer_prepare()
942 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_buffer_postdisable() local
947 return at91_adc_configure_touch(st, false); in at91_adc_buffer_postdisable()
971 at91_adc_writel(st, AT91_SAMA5D2_CHDR, BIT(chan->channel)); in at91_adc_buffer_postdisable()
973 if (st->dma_st.dma_chan) in at91_adc_buffer_postdisable()
974 at91_adc_readl(st, chan->address); in at91_adc_buffer_postdisable()
977 if (at91_adc_buffer_check_use_irq(indio_dev, st)) in at91_adc_buffer_postdisable()
978 at91_adc_writel(st, AT91_SAMA5D2_IDR, AT91_SAMA5D2_IER_DRDY); in at91_adc_buffer_postdisable()
981 at91_adc_readl(st, AT91_SAMA5D2_OVER); in at91_adc_buffer_postdisable()
984 if (st->dma_st.dma_chan) in at91_adc_buffer_postdisable()
985 dmaengine_terminate_sync(st->dma_st.dma_chan); in at91_adc_buffer_postdisable()
1018 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_trigger_handler_nodma() local
1029 while ((at91_adc_readl(st, AT91_SAMA5D2_ISR) & mask) != mask && in at91_adc_trigger_handler_nodma()
1057 val = at91_adc_readl(st, chan->address); in at91_adc_trigger_handler_nodma()
1058 at91_adc_adjust_val_osr(st, &val); in at91_adc_trigger_handler_nodma()
1059 st->buffer[i] = val; in at91_adc_trigger_handler_nodma()
1061 st->buffer[i] = 0; in at91_adc_trigger_handler_nodma()
1066 iio_push_to_buffers_with_timestamp(indio_dev, st->buffer, in at91_adc_trigger_handler_nodma()
1072 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_trigger_handler_dma() local
1073 int transferred_len = at91_adc_dma_size_done(st); in at91_adc_trigger_handler_dma()
1078 u32 status = at91_adc_readl(st, AT91_SAMA5D2_ISR); in at91_adc_trigger_handler_dma()
1084 sample_size = div_s64(st->dma_st.rx_buf_sz, st->dma_st.watermark); in at91_adc_trigger_handler_dma()
1092 interval = div_s64((ns - st->dma_st.dma_ts), sample_count); in at91_adc_trigger_handler_dma()
1099 at91_adc_adjust_val_osr_array(st, in at91_adc_trigger_handler_dma()
1100 &st->dma_st.rx_buf[st->dma_st.buf_idx], in at91_adc_trigger_handler_dma()
1104 (st->dma_st.rx_buf + st->dma_st.buf_idx), in at91_adc_trigger_handler_dma()
1105 (st->dma_st.dma_ts + interval * sample_index)); in at91_adc_trigger_handler_dma()
1109 st->dma_st.buf_idx += sample_size; in at91_adc_trigger_handler_dma()
1111 if (st->dma_st.buf_idx >= st->dma_st.rx_buf_sz) in at91_adc_trigger_handler_dma()
1112 st->dma_st.buf_idx = 0; in at91_adc_trigger_handler_dma()
1116 st->dma_st.dma_ts = iio_get_time_ns(indio_dev); in at91_adc_trigger_handler_dma()
1123 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_trigger_handler() local
1130 at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_START); in at91_adc_trigger_handler()
1132 if (st->dma_st.dma_chan) in at91_adc_trigger_handler()
1168 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_setup_samp_freq() local
1171 f_per = clk_get_rate(st->per_clk); in at91_adc_setup_samp_freq()
1174 startup = at91_adc_startup_time(st->soc_info.startup_time, in at91_adc_setup_samp_freq()
1177 mr = at91_adc_readl(st, AT91_SAMA5D2_MR); in at91_adc_setup_samp_freq()
1181 at91_adc_writel(st, AT91_SAMA5D2_MR, mr); in at91_adc_setup_samp_freq()
1185 st->current_sample_rate = freq; in at91_adc_setup_samp_freq()
1188 static inline unsigned at91_adc_get_sample_freq(struct at91_adc_state *st) in at91_adc_get_sample_freq() argument
1190 return st->current_sample_rate; in at91_adc_get_sample_freq()
1195 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_touch_data_handler() local
1206 at91_adc_read_position(st, chan->channel, &val); in at91_adc_touch_data_handler()
1208 at91_adc_read_pressure(st, chan->channel, &val); in at91_adc_touch_data_handler()
1211 st->buffer[i] = val; in at91_adc_touch_data_handler()
1222 schedule_work(&st->touch_st.workq); in at91_adc_touch_data_handler()
1225 static void at91_adc_pen_detect_interrupt(struct at91_adc_state *st) in at91_adc_pen_detect_interrupt() argument
1227 at91_adc_writel(st, AT91_SAMA5D2_IDR, AT91_SAMA5D2_IER_PEN); in at91_adc_pen_detect_interrupt()
1228 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_NOPEN | in at91_adc_pen_detect_interrupt()
1231 at91_adc_writel(st, AT91_SAMA5D2_TRGR, in at91_adc_pen_detect_interrupt()
1233 AT91_SAMA5D2_TRGR_TRGPER(st->touch_st.sample_period_val)); in at91_adc_pen_detect_interrupt()
1234 st->touch_st.touching = true; in at91_adc_pen_detect_interrupt()
1239 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_no_pen_detect_interrupt() local
1241 at91_adc_writel(st, AT91_SAMA5D2_TRGR, in at91_adc_no_pen_detect_interrupt()
1243 at91_adc_writel(st, AT91_SAMA5D2_IDR, AT91_SAMA5D2_IER_NOPEN | in at91_adc_no_pen_detect_interrupt()
1246 st->touch_st.touching = false; in at91_adc_no_pen_detect_interrupt()
1250 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_PEN); in at91_adc_no_pen_detect_interrupt()
1257 struct at91_adc_state *st = container_of(touch_st, in at91_adc_workq_handler() local
1259 struct iio_dev *indio_dev = st->indio_dev; in at91_adc_workq_handler()
1261 iio_push_to_buffers(indio_dev, st->buffer); in at91_adc_workq_handler()
1267 struct at91_adc_state *st = iio_priv(indio); in at91_adc_interrupt() local
1268 u32 status = at91_adc_readl(st, AT91_SAMA5D2_ISR); in at91_adc_interrupt()
1269 u32 imr = at91_adc_readl(st, AT91_SAMA5D2_IMR); in at91_adc_interrupt()
1277 at91_adc_pen_detect_interrupt(st); in at91_adc_interrupt()
1290 status = at91_adc_readl(st, AT91_SAMA5D2_XPOSR); in at91_adc_interrupt()
1291 status = at91_adc_readl(st, AT91_SAMA5D2_YPOSR); in at91_adc_interrupt()
1292 status = at91_adc_readl(st, AT91_SAMA5D2_PRESSR); in at91_adc_interrupt()
1298 } else if (iio_buffer_enabled(indio) && st->dma_st.dma_chan) { in at91_adc_interrupt()
1304 st->conversion_value = at91_adc_readl(st, st->chan->address); in at91_adc_interrupt()
1305 st->conversion_done = true; in at91_adc_interrupt()
1306 wake_up_interruptible(&st->wq_data_available); in at91_adc_interrupt()
1314 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_read_info_raw() local
1327 mutex_lock(&st->lock); in at91_adc_read_info_raw()
1329 ret = at91_adc_read_position(st, chan->channel, in at91_adc_read_info_raw()
1332 mutex_unlock(&st->lock); in at91_adc_read_info_raw()
1335 return at91_adc_adjust_val_osr(st, val); in at91_adc_read_info_raw()
1341 mutex_lock(&st->lock); in at91_adc_read_info_raw()
1343 ret = at91_adc_read_pressure(st, chan->channel, in at91_adc_read_info_raw()
1346 mutex_unlock(&st->lock); in at91_adc_read_info_raw()
1349 return at91_adc_adjust_val_osr(st, val); in at91_adc_read_info_raw()
1357 mutex_lock(&st->lock); in at91_adc_read_info_raw()
1359 st->chan = chan; in at91_adc_read_info_raw()
1365 at91_adc_writel(st, AT91_SAMA5D2_COR, cor); in at91_adc_read_info_raw()
1366 at91_adc_writel(st, AT91_SAMA5D2_CHER, BIT(chan->channel)); in at91_adc_read_info_raw()
1367 at91_adc_writel(st, AT91_SAMA5D2_IER, BIT(chan->channel)); in at91_adc_read_info_raw()
1368 at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_START); in at91_adc_read_info_raw()
1370 ret = wait_event_interruptible_timeout(st->wq_data_available, in at91_adc_read_info_raw()
1371 st->conversion_done, in at91_adc_read_info_raw()
1377 *val = st->conversion_value; in at91_adc_read_info_raw()
1378 ret = at91_adc_adjust_val_osr(st, val); in at91_adc_read_info_raw()
1381 st->conversion_done = false; in at91_adc_read_info_raw()
1384 at91_adc_writel(st, AT91_SAMA5D2_IDR, BIT(chan->channel)); in at91_adc_read_info_raw()
1385 at91_adc_writel(st, AT91_SAMA5D2_CHDR, BIT(chan->channel)); in at91_adc_read_info_raw()
1388 at91_adc_readl(st, AT91_SAMA5D2_LCDR); in at91_adc_read_info_raw()
1390 mutex_unlock(&st->lock); in at91_adc_read_info_raw()
1400 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_read_raw() local
1406 *val = st->vref_uv / 1000; in at91_adc_read_raw()
1413 *val = at91_adc_get_sample_freq(st); in at91_adc_read_raw()
1417 *val = st->oversampling_ratio; in at91_adc_read_raw()
1429 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_write_raw() local
1437 if (val == st->oversampling_ratio) in at91_adc_write_raw()
1439 st->oversampling_ratio = val; in at91_adc_write_raw()
1441 at91_adc_config_emr(st); in at91_adc_write_raw()
1444 if (val < st->soc_info.min_sample_rate || in at91_adc_write_raw()
1445 val > st->soc_info.max_sample_rate) in at91_adc_write_raw()
1458 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_dma_init() local
1469 if (st->dma_st.dma_chan) in at91_adc_dma_init()
1472 st->dma_st.dma_chan = dma_request_chan(&pdev->dev, "rx"); in at91_adc_dma_init()
1473 if (IS_ERR(st->dma_st.dma_chan)) { in at91_adc_dma_init()
1475 st->dma_st.dma_chan = NULL; in at91_adc_dma_init()
1479 st->dma_st.rx_buf = dma_alloc_coherent(st->dma_st.dma_chan->device->dev, in at91_adc_dma_init()
1481 &st->dma_st.rx_dma_buf, in at91_adc_dma_init()
1483 if (!st->dma_st.rx_buf) { in at91_adc_dma_init()
1490 config.src_addr = (phys_addr_t)(st->dma_st.phys_addr in at91_adc_dma_init()
1496 if (dmaengine_slave_config(st->dma_st.dma_chan, &config)) { in at91_adc_dma_init()
1502 dma_chan_name(st->dma_st.dma_chan)); in at91_adc_dma_init()
1507 dma_free_coherent(st->dma_st.dma_chan->device->dev, pages * PAGE_SIZE, in at91_adc_dma_init()
1508 st->dma_st.rx_buf, st->dma_st.rx_dma_buf); in at91_adc_dma_init()
1510 dma_release_channel(st->dma_st.dma_chan); in at91_adc_dma_init()
1511 st->dma_st.dma_chan = NULL; in at91_adc_dma_init()
1519 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_dma_disable() local
1525 if (!st->dma_st.dma_chan) in at91_adc_dma_disable()
1529 dmaengine_terminate_sync(st->dma_st.dma_chan); in at91_adc_dma_disable()
1531 dma_free_coherent(st->dma_st.dma_chan->device->dev, pages * PAGE_SIZE, in at91_adc_dma_disable()
1532 st->dma_st.rx_buf, st->dma_st.rx_dma_buf); in at91_adc_dma_disable()
1533 dma_release_channel(st->dma_st.dma_chan); in at91_adc_dma_disable()
1534 st->dma_st.dma_chan = NULL; in at91_adc_dma_disable()
1541 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_set_watermark() local
1547 if (!st->selected_trig->hw_trig) { in at91_adc_set_watermark()
1553 st->dma_st.watermark = val; in at91_adc_set_watermark()
1580 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_update_scan_mode() local
1582 if (bitmap_subset(scan_mask, &st->touch_st.channels_bitmask, in at91_adc_update_scan_mode()
1589 if (bitmap_intersects(&st->touch_st.channels_bitmask, scan_mask, in at91_adc_update_scan_mode()
1597 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_hw_init() local
1599 at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_SWRST); in at91_adc_hw_init()
1600 at91_adc_writel(st, AT91_SAMA5D2_IDR, 0xffffffff); in at91_adc_hw_init()
1605 at91_adc_writel(st, AT91_SAMA5D2_MR, in at91_adc_hw_init()
1608 at91_adc_setup_samp_freq(indio_dev, st->soc_info.min_sample_rate); in at91_adc_hw_init()
1611 at91_adc_config_emr(st); in at91_adc_hw_init()
1618 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_get_fifo_state() local
1620 return scnprintf(buf, PAGE_SIZE, "%d\n", !!st->dma_st.dma_chan); in at91_adc_get_fifo_state()
1627 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_get_watermark() local
1629 return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark); in at91_adc_get_watermark()
1674 struct at91_adc_state *st = iio_priv(indio); in at91_adc_buffer_and_trigger_init() local
1678 if (st->selected_trig->hw_trig) in at91_adc_buffer_and_trigger_init()
1691 if (!st->selected_trig->hw_trig) in at91_adc_buffer_and_trigger_init()
1694 st->trig = at91_adc_allocate_trigger(indio, st->selected_trig->name); in at91_adc_buffer_and_trigger_init()
1695 if (IS_ERR(st->trig)) { in at91_adc_buffer_and_trigger_init()
1697 return PTR_ERR(st->trig); in at91_adc_buffer_and_trigger_init()
1704 st->dma_st.watermark = 1; in at91_adc_buffer_and_trigger_init()
1712 struct at91_adc_state *st; in at91_adc_probe() local
1717 indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); in at91_adc_probe()
1727 st = iio_priv(indio_dev); in at91_adc_probe()
1728 st->indio_dev = indio_dev; in at91_adc_probe()
1730 bitmap_set(&st->touch_st.channels_bitmask, in at91_adc_probe()
1732 bitmap_set(&st->touch_st.channels_bitmask, in at91_adc_probe()
1734 bitmap_set(&st->touch_st.channels_bitmask, in at91_adc_probe()
1737 st->oversampling_ratio = AT91_OSR_1SAMPLES; in at91_adc_probe()
1741 &st->soc_info.min_sample_rate); in at91_adc_probe()
1750 &st->soc_info.max_sample_rate); in at91_adc_probe()
1758 &st->soc_info.startup_time); in at91_adc_probe()
1772 st->selected_trig = NULL; in at91_adc_probe()
1777 st->selected_trig = &at91_adc_trigger_list[i]; in at91_adc_probe()
1781 if (!st->selected_trig) { in at91_adc_probe()
1786 init_waitqueue_head(&st->wq_data_available); in at91_adc_probe()
1787 mutex_init(&st->lock); in at91_adc_probe()
1788 INIT_WORK(&st->touch_st.workq, at91_adc_workq_handler); in at91_adc_probe()
1790 st->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); in at91_adc_probe()
1791 if (IS_ERR(st->base)) in at91_adc_probe()
1792 return PTR_ERR(st->base); in at91_adc_probe()
1795 st->dma_st.phys_addr = res->start; in at91_adc_probe()
1797 st->irq = platform_get_irq(pdev, 0); in at91_adc_probe()
1798 if (st->irq <= 0) { in at91_adc_probe()
1799 if (!st->irq) in at91_adc_probe()
1800 st->irq = -ENXIO; in at91_adc_probe()
1802 return st->irq; in at91_adc_probe()
1805 st->per_clk = devm_clk_get(&pdev->dev, "adc_clk"); in at91_adc_probe()
1806 if (IS_ERR(st->per_clk)) in at91_adc_probe()
1807 return PTR_ERR(st->per_clk); in at91_adc_probe()
1809 st->reg = devm_regulator_get(&pdev->dev, "vddana"); in at91_adc_probe()
1810 if (IS_ERR(st->reg)) in at91_adc_probe()
1811 return PTR_ERR(st->reg); in at91_adc_probe()
1813 st->vref = devm_regulator_get(&pdev->dev, "vref"); in at91_adc_probe()
1814 if (IS_ERR(st->vref)) in at91_adc_probe()
1815 return PTR_ERR(st->vref); in at91_adc_probe()
1817 ret = devm_request_irq(&pdev->dev, st->irq, at91_adc_interrupt, 0, in at91_adc_probe()
1822 ret = regulator_enable(st->reg); in at91_adc_probe()
1826 ret = regulator_enable(st->vref); in at91_adc_probe()
1830 st->vref_uv = regulator_get_voltage(st->vref); in at91_adc_probe()
1831 if (st->vref_uv <= 0) { in at91_adc_probe()
1838 ret = clk_prepare_enable(st->per_clk); in at91_adc_probe()
1855 if (st->selected_trig->hw_trig) in at91_adc_probe()
1857 st->selected_trig->name); in at91_adc_probe()
1860 readl_relaxed(st->base + AT91_SAMA5D2_VERSION)); in at91_adc_probe()
1867 clk_disable_unprepare(st->per_clk); in at91_adc_probe()
1869 regulator_disable(st->vref); in at91_adc_probe()
1871 regulator_disable(st->reg); in at91_adc_probe()
1878 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_remove() local
1884 clk_disable_unprepare(st->per_clk); in at91_adc_remove()
1886 regulator_disable(st->vref); in at91_adc_remove()
1887 regulator_disable(st->reg); in at91_adc_remove()
1895 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_suspend() local
1903 at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_SWRST); in at91_adc_suspend()
1905 clk_disable_unprepare(st->per_clk); in at91_adc_suspend()
1906 regulator_disable(st->vref); in at91_adc_suspend()
1907 regulator_disable(st->reg); in at91_adc_suspend()
1915 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_resume() local
1922 ret = regulator_enable(st->reg); in at91_adc_resume()
1926 ret = regulator_enable(st->vref); in at91_adc_resume()
1930 ret = clk_prepare_enable(st->per_clk); in at91_adc_resume()
1942 return at91_adc_configure_touch(st, true); in at91_adc_resume()
1944 return at91_adc_configure_trigger(st->trig, true); in at91_adc_resume()
1950 regulator_disable(st->vref); in at91_adc_resume()
1952 regulator_disable(st->reg); in at91_adc_resume()