Lines Matching refs:st
338 #define at91_adc_readl(st, reg) readl_relaxed(st->base + reg) argument
339 #define at91_adc_writel(st, reg, val) writel_relaxed(val, st->base + reg) argument
497 static void at91_adc_config_emr(struct at91_adc_state *st) in at91_adc_config_emr() argument
500 unsigned int emr = at91_adc_readl(st, AT91_SAMA5D2_EMR); in at91_adc_config_emr()
509 switch (st->oversampling_ratio) { in at91_adc_config_emr()
524 at91_adc_writel(st, AT91_SAMA5D2_EMR, emr); in at91_adc_config_emr()
527 static int at91_adc_adjust_val_osr(struct at91_adc_state *st, int *val) in at91_adc_adjust_val_osr() argument
529 if (st->oversampling_ratio == AT91_OSR_1SAMPLES) { in at91_adc_adjust_val_osr()
535 } else if (st->oversampling_ratio == AT91_OSR_4SAMPLES) { in at91_adc_adjust_val_osr()
546 static void at91_adc_adjust_val_osr_array(struct at91_adc_state *st, void *buf, in at91_adc_adjust_val_osr_array() argument
562 at91_adc_adjust_val_osr(st, &val); in at91_adc_adjust_val_osr_array()
568 static int at91_adc_configure_touch(struct at91_adc_state *st, bool state) in at91_adc_configure_touch() argument
570 u32 clk_khz = st->current_sample_rate / 1000; in at91_adc_configure_touch()
577 at91_adc_writel(st, AT91_SAMA5D2_IDR, in at91_adc_configure_touch()
579 at91_adc_writel(st, AT91_SAMA5D2_TSMR, 0); in at91_adc_configure_touch()
605 at91_adc_writel(st, AT91_SAMA5D2_TSMR, tsmr); in at91_adc_configure_touch()
607 acr = at91_adc_readl(st, AT91_SAMA5D2_ACR); in at91_adc_configure_touch()
610 at91_adc_writel(st, AT91_SAMA5D2_ACR, acr); in at91_adc_configure_touch()
613 st->touch_st.sample_period_val = in at91_adc_configure_touch()
617 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_PEN); in at91_adc_configure_touch()
622 static u16 at91_adc_touch_pos(struct at91_adc_state *st, int reg) in at91_adc_touch_pos() argument
633 val = at91_adc_readl(st, reg); in at91_adc_touch_pos()
635 dev_dbg(&iio_priv_to_dev(st)->dev, "pos is 0\n"); in at91_adc_touch_pos()
641 dev_err(&iio_priv_to_dev(st)->dev, "scale is 0\n"); in at91_adc_touch_pos()
649 static u16 at91_adc_touch_x_pos(struct at91_adc_state *st) in at91_adc_touch_x_pos() argument
651 st->touch_st.x_pos = at91_adc_touch_pos(st, AT91_SAMA5D2_XPOSR); in at91_adc_touch_x_pos()
652 return st->touch_st.x_pos; in at91_adc_touch_x_pos()
655 static u16 at91_adc_touch_y_pos(struct at91_adc_state *st) in at91_adc_touch_y_pos() argument
657 return at91_adc_touch_pos(st, AT91_SAMA5D2_YPOSR); in at91_adc_touch_y_pos()
660 static u16 at91_adc_touch_pressure(struct at91_adc_state *st) in at91_adc_touch_pressure() argument
669 val = at91_adc_readl(st, AT91_SAMA5D2_PRESSR); in at91_adc_touch_pressure()
674 pres = rxp * (st->touch_st.x_pos * factor / 1024) * in at91_adc_touch_pressure()
688 static int at91_adc_read_position(struct at91_adc_state *st, int chan, u16 *val) in at91_adc_read_position() argument
691 if (!st->touch_st.touching) in at91_adc_read_position()
694 *val = at91_adc_touch_x_pos(st); in at91_adc_read_position()
696 *val = at91_adc_touch_y_pos(st); in at91_adc_read_position()
703 static int at91_adc_read_pressure(struct at91_adc_state *st, int chan, u16 *val) in at91_adc_read_pressure() argument
706 if (!st->touch_st.touching) in at91_adc_read_pressure()
709 *val = at91_adc_touch_pressure(st); in at91_adc_read_pressure()
719 struct at91_adc_state *st = iio_priv(indio); in at91_adc_configure_trigger() local
720 u32 status = at91_adc_readl(st, AT91_SAMA5D2_TRGR); in at91_adc_configure_trigger()
727 status |= st->selected_trig->trgmod_value; in at91_adc_configure_trigger()
730 at91_adc_writel(st, AT91_SAMA5D2_TRGR, status); in at91_adc_configure_trigger()
743 at91_adc_writel(st, AT91_SAMA5D2_CHER, in at91_adc_configure_trigger()
746 if (!st->dma_st.dma_chan) { in at91_adc_configure_trigger()
747 at91_adc_writel(st, AT91_SAMA5D2_IER, in at91_adc_configure_trigger()
752 if (!st->dma_st.dma_chan) { in at91_adc_configure_trigger()
753 at91_adc_writel(st, AT91_SAMA5D2_IDR, in at91_adc_configure_trigger()
756 at91_adc_writel(st, AT91_SAMA5D2_CHDR, in at91_adc_configure_trigger()
767 struct at91_adc_state *st = iio_priv(indio); in at91_adc_reenable_trigger() local
770 if (st->dma_st.dma_chan) in at91_adc_reenable_trigger()
773 enable_irq(st->irq); in at91_adc_reenable_trigger()
776 at91_adc_readl(st, AT91_SAMA5D2_LCDR); in at91_adc_reenable_trigger()
786 static int at91_adc_dma_size_done(struct at91_adc_state *st) in at91_adc_dma_size_done() argument
792 status = dmaengine_tx_status(st->dma_st.dma_chan, in at91_adc_dma_size_done()
793 st->dma_st.dma_chan->cookie, in at91_adc_dma_size_done()
799 i = st->dma_st.rx_buf_sz - state.residue; in at91_adc_dma_size_done()
802 if (i >= st->dma_st.buf_idx) in at91_adc_dma_size_done()
803 size = i - st->dma_st.buf_idx; in at91_adc_dma_size_done()
805 size = st->dma_st.rx_buf_sz + i - st->dma_st.buf_idx; in at91_adc_dma_size_done()
818 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_dma_start() local
824 if (!st->dma_st.dma_chan) in at91_adc_dma_start()
828 st->dma_st.buf_idx = 0; in at91_adc_dma_start()
834 st->dma_st.rx_buf_sz = 0; in at91_adc_dma_start()
844 st->dma_st.rx_buf_sz += chan->scan_type.storagebits / 8; in at91_adc_dma_start()
846 st->dma_st.rx_buf_sz *= st->dma_st.watermark; in at91_adc_dma_start()
849 desc = dmaengine_prep_dma_cyclic(st->dma_st.dma_chan, in at91_adc_dma_start()
850 st->dma_st.rx_dma_buf, in at91_adc_dma_start()
851 st->dma_st.rx_buf_sz, in at91_adc_dma_start()
852 st->dma_st.rx_buf_sz / 2, in at91_adc_dma_start()
867 dmaengine_terminate_async(st->dma_st.dma_chan); in at91_adc_dma_start()
872 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_GOVRE); in at91_adc_dma_start()
874 dma_async_issue_pending(st->dma_st.dma_chan); in at91_adc_dma_start()
877 st->dma_st.dma_ts = iio_get_time_ns(indio_dev); in at91_adc_dma_start()
887 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_buffer_postenable() local
891 &st->touch_st.channels_bitmask, in at91_adc_buffer_postenable()
894 return at91_adc_configure_touch(st, true); in at91_adc_buffer_postenable()
912 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_buffer_predisable() local
918 &st->touch_st.channels_bitmask, in at91_adc_buffer_predisable()
921 return at91_adc_configure_touch(st, false); in at91_adc_buffer_predisable()
932 if (!st->dma_st.dma_chan) in at91_adc_buffer_predisable()
936 dmaengine_terminate_sync(st->dma_st.dma_chan); in at91_adc_buffer_predisable()
954 if (st->dma_st.dma_chan) in at91_adc_buffer_predisable()
955 at91_adc_readl(st, chan->address); in at91_adc_buffer_predisable()
959 at91_adc_readl(st, AT91_SAMA5D2_OVER); in at91_adc_buffer_predisable()
992 struct at91_adc_state *st = iio_priv(indio); in at91_adc_trigger_init() local
994 st->trig = at91_adc_allocate_trigger(indio, st->selected_trig->name); in at91_adc_trigger_init()
995 if (IS_ERR(st->trig)) { in at91_adc_trigger_init()
998 return PTR_ERR(st->trig); in at91_adc_trigger_init()
1007 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_trigger_handler_nodma() local
1030 val = at91_adc_readl(st, chan->address); in at91_adc_trigger_handler_nodma()
1031 at91_adc_adjust_val_osr(st, &val); in at91_adc_trigger_handler_nodma()
1032 st->buffer[i] = val; in at91_adc_trigger_handler_nodma()
1034 st->buffer[i] = 0; in at91_adc_trigger_handler_nodma()
1039 iio_push_to_buffers_with_timestamp(indio_dev, st->buffer, in at91_adc_trigger_handler_nodma()
1045 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_trigger_handler_dma() local
1046 int transferred_len = at91_adc_dma_size_done(st); in at91_adc_trigger_handler_dma()
1051 u32 status = at91_adc_readl(st, AT91_SAMA5D2_ISR); in at91_adc_trigger_handler_dma()
1057 sample_size = div_s64(st->dma_st.rx_buf_sz, st->dma_st.watermark); in at91_adc_trigger_handler_dma()
1065 interval = div_s64((ns - st->dma_st.dma_ts), sample_count); in at91_adc_trigger_handler_dma()
1072 at91_adc_adjust_val_osr_array(st, in at91_adc_trigger_handler_dma()
1073 &st->dma_st.rx_buf[st->dma_st.buf_idx], in at91_adc_trigger_handler_dma()
1077 (st->dma_st.rx_buf + st->dma_st.buf_idx), in at91_adc_trigger_handler_dma()
1078 (st->dma_st.dma_ts + interval * sample_index)); in at91_adc_trigger_handler_dma()
1082 st->dma_st.buf_idx += sample_size; in at91_adc_trigger_handler_dma()
1084 if (st->dma_st.buf_idx >= st->dma_st.rx_buf_sz) in at91_adc_trigger_handler_dma()
1085 st->dma_st.buf_idx = 0; in at91_adc_trigger_handler_dma()
1089 st->dma_st.dma_ts = iio_get_time_ns(indio_dev); in at91_adc_trigger_handler_dma()
1096 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_trigger_handler() local
1098 if (st->dma_st.dma_chan) in at91_adc_trigger_handler()
1110 struct at91_adc_state *st = iio_priv(indio); in at91_adc_buffer_init() local
1112 if (st->selected_trig->hw_trig) { in at91_adc_buffer_init()
1150 static void at91_adc_setup_samp_freq(struct at91_adc_state *st, unsigned freq) in at91_adc_setup_samp_freq() argument
1152 struct iio_dev *indio_dev = iio_priv_to_dev(st); in at91_adc_setup_samp_freq()
1155 f_per = clk_get_rate(st->per_clk); in at91_adc_setup_samp_freq()
1158 startup = at91_adc_startup_time(st->soc_info.startup_time, in at91_adc_setup_samp_freq()
1161 mr = at91_adc_readl(st, AT91_SAMA5D2_MR); in at91_adc_setup_samp_freq()
1165 at91_adc_writel(st, AT91_SAMA5D2_MR, mr); in at91_adc_setup_samp_freq()
1169 st->current_sample_rate = freq; in at91_adc_setup_samp_freq()
1172 static inline unsigned at91_adc_get_sample_freq(struct at91_adc_state *st) in at91_adc_get_sample_freq() argument
1174 return st->current_sample_rate; in at91_adc_get_sample_freq()
1179 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_touch_data_handler() local
1190 at91_adc_read_position(st, chan->channel, &val); in at91_adc_touch_data_handler()
1192 at91_adc_read_pressure(st, chan->channel, &val); in at91_adc_touch_data_handler()
1195 st->buffer[i] = val; in at91_adc_touch_data_handler()
1206 schedule_work(&st->touch_st.workq); in at91_adc_touch_data_handler()
1209 static void at91_adc_pen_detect_interrupt(struct at91_adc_state *st) in at91_adc_pen_detect_interrupt() argument
1211 at91_adc_writel(st, AT91_SAMA5D2_IDR, AT91_SAMA5D2_IER_PEN); in at91_adc_pen_detect_interrupt()
1212 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_NOPEN | in at91_adc_pen_detect_interrupt()
1215 at91_adc_writel(st, AT91_SAMA5D2_TRGR, in at91_adc_pen_detect_interrupt()
1217 AT91_SAMA5D2_TRGR_TRGPER(st->touch_st.sample_period_val)); in at91_adc_pen_detect_interrupt()
1218 st->touch_st.touching = true; in at91_adc_pen_detect_interrupt()
1221 static void at91_adc_no_pen_detect_interrupt(struct at91_adc_state *st) in at91_adc_no_pen_detect_interrupt() argument
1223 struct iio_dev *indio_dev = iio_priv_to_dev(st); in at91_adc_no_pen_detect_interrupt()
1225 at91_adc_writel(st, AT91_SAMA5D2_TRGR, in at91_adc_no_pen_detect_interrupt()
1227 at91_adc_writel(st, AT91_SAMA5D2_IDR, AT91_SAMA5D2_IER_NOPEN | in at91_adc_no_pen_detect_interrupt()
1230 st->touch_st.touching = false; in at91_adc_no_pen_detect_interrupt()
1234 at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_PEN); in at91_adc_no_pen_detect_interrupt()
1241 struct at91_adc_state *st = container_of(touch_st, in at91_adc_workq_handler() local
1243 struct iio_dev *indio_dev = iio_priv_to_dev(st); in at91_adc_workq_handler()
1245 iio_push_to_buffers(indio_dev, st->buffer); in at91_adc_workq_handler()
1251 struct at91_adc_state *st = iio_priv(indio); in at91_adc_interrupt() local
1252 u32 status = at91_adc_readl(st, AT91_SAMA5D2_ISR); in at91_adc_interrupt()
1253 u32 imr = at91_adc_readl(st, AT91_SAMA5D2_IMR); in at91_adc_interrupt()
1261 at91_adc_pen_detect_interrupt(st); in at91_adc_interrupt()
1264 at91_adc_no_pen_detect_interrupt(st); in at91_adc_interrupt()
1274 status = at91_adc_readl(st, AT91_SAMA5D2_XPOSR); in at91_adc_interrupt()
1275 status = at91_adc_readl(st, AT91_SAMA5D2_YPOSR); in at91_adc_interrupt()
1276 status = at91_adc_readl(st, AT91_SAMA5D2_PRESSR); in at91_adc_interrupt()
1277 } else if (iio_buffer_enabled(indio) && !st->dma_st.dma_chan) { in at91_adc_interrupt()
1281 } else if (iio_buffer_enabled(indio) && st->dma_st.dma_chan) { in at91_adc_interrupt()
1287 st->conversion_value = at91_adc_readl(st, st->chan->address); in at91_adc_interrupt()
1288 st->conversion_done = true; in at91_adc_interrupt()
1289 wake_up_interruptible(&st->wq_data_available); in at91_adc_interrupt()
1297 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_read_info_raw() local
1310 mutex_lock(&st->lock); in at91_adc_read_info_raw()
1312 ret = at91_adc_read_position(st, chan->channel, in at91_adc_read_info_raw()
1315 mutex_unlock(&st->lock); in at91_adc_read_info_raw()
1318 return at91_adc_adjust_val_osr(st, val); in at91_adc_read_info_raw()
1324 mutex_lock(&st->lock); in at91_adc_read_info_raw()
1326 ret = at91_adc_read_pressure(st, chan->channel, in at91_adc_read_info_raw()
1329 mutex_unlock(&st->lock); in at91_adc_read_info_raw()
1332 return at91_adc_adjust_val_osr(st, val); in at91_adc_read_info_raw()
1340 mutex_lock(&st->lock); in at91_adc_read_info_raw()
1342 st->chan = chan; in at91_adc_read_info_raw()
1348 at91_adc_writel(st, AT91_SAMA5D2_COR, cor); in at91_adc_read_info_raw()
1349 at91_adc_writel(st, AT91_SAMA5D2_CHER, BIT(chan->channel)); in at91_adc_read_info_raw()
1350 at91_adc_writel(st, AT91_SAMA5D2_IER, BIT(chan->channel)); in at91_adc_read_info_raw()
1351 at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_START); in at91_adc_read_info_raw()
1353 ret = wait_event_interruptible_timeout(st->wq_data_available, in at91_adc_read_info_raw()
1354 st->conversion_done, in at91_adc_read_info_raw()
1360 *val = st->conversion_value; in at91_adc_read_info_raw()
1361 ret = at91_adc_adjust_val_osr(st, val); in at91_adc_read_info_raw()
1364 st->conversion_done = false; in at91_adc_read_info_raw()
1367 at91_adc_writel(st, AT91_SAMA5D2_IDR, BIT(chan->channel)); in at91_adc_read_info_raw()
1368 at91_adc_writel(st, AT91_SAMA5D2_CHDR, BIT(chan->channel)); in at91_adc_read_info_raw()
1371 at91_adc_readl(st, AT91_SAMA5D2_LCDR); in at91_adc_read_info_raw()
1373 mutex_unlock(&st->lock); in at91_adc_read_info_raw()
1383 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_read_raw() local
1389 *val = st->vref_uv / 1000; in at91_adc_read_raw()
1396 *val = at91_adc_get_sample_freq(st); in at91_adc_read_raw()
1400 *val = st->oversampling_ratio; in at91_adc_read_raw()
1412 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_write_raw() local
1420 if (val == st->oversampling_ratio) in at91_adc_write_raw()
1422 st->oversampling_ratio = val; in at91_adc_write_raw()
1424 at91_adc_config_emr(st); in at91_adc_write_raw()
1427 if (val < st->soc_info.min_sample_rate || in at91_adc_write_raw()
1428 val > st->soc_info.max_sample_rate) in at91_adc_write_raw()
1431 at91_adc_setup_samp_freq(st, val); in at91_adc_write_raw()
1441 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_dma_init() local
1452 if (st->dma_st.dma_chan) in at91_adc_dma_init()
1455 st->dma_st.dma_chan = dma_request_slave_channel(&pdev->dev, "rx"); in at91_adc_dma_init()
1457 if (!st->dma_st.dma_chan) { in at91_adc_dma_init()
1462 st->dma_st.rx_buf = dma_alloc_coherent(st->dma_st.dma_chan->device->dev, in at91_adc_dma_init()
1464 &st->dma_st.rx_dma_buf, in at91_adc_dma_init()
1466 if (!st->dma_st.rx_buf) { in at91_adc_dma_init()
1473 config.src_addr = (phys_addr_t)(st->dma_st.phys_addr in at91_adc_dma_init()
1479 if (dmaengine_slave_config(st->dma_st.dma_chan, &config)) { in at91_adc_dma_init()
1485 dma_chan_name(st->dma_st.dma_chan)); in at91_adc_dma_init()
1490 dma_free_coherent(st->dma_st.dma_chan->device->dev, pages * PAGE_SIZE, in at91_adc_dma_init()
1491 st->dma_st.rx_buf, st->dma_st.rx_dma_buf); in at91_adc_dma_init()
1493 dma_release_channel(st->dma_st.dma_chan); in at91_adc_dma_init()
1494 st->dma_st.dma_chan = 0; in at91_adc_dma_init()
1502 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_dma_disable() local
1508 if (!st->dma_st.dma_chan) in at91_adc_dma_disable()
1512 dmaengine_terminate_sync(st->dma_st.dma_chan); in at91_adc_dma_disable()
1514 dma_free_coherent(st->dma_st.dma_chan->device->dev, pages * PAGE_SIZE, in at91_adc_dma_disable()
1515 st->dma_st.rx_buf, st->dma_st.rx_dma_buf); in at91_adc_dma_disable()
1516 dma_release_channel(st->dma_st.dma_chan); in at91_adc_dma_disable()
1517 st->dma_st.dma_chan = 0; in at91_adc_dma_disable()
1524 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_set_watermark() local
1529 if (!st->selected_trig->hw_trig) { in at91_adc_set_watermark()
1535 st->dma_st.watermark = val; in at91_adc_set_watermark()
1554 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_update_scan_mode() local
1556 if (bitmap_subset(scan_mask, &st->touch_st.channels_bitmask, in at91_adc_update_scan_mode()
1563 if (bitmap_intersects(&st->touch_st.channels_bitmask, scan_mask, in at91_adc_update_scan_mode()
1569 static void at91_adc_hw_init(struct at91_adc_state *st) in at91_adc_hw_init() argument
1571 at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_SWRST); in at91_adc_hw_init()
1572 at91_adc_writel(st, AT91_SAMA5D2_IDR, 0xffffffff); in at91_adc_hw_init()
1577 at91_adc_writel(st, AT91_SAMA5D2_MR, in at91_adc_hw_init()
1580 at91_adc_setup_samp_freq(st, st->soc_info.min_sample_rate); in at91_adc_hw_init()
1583 at91_adc_config_emr(st); in at91_adc_hw_init()
1591 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_get_fifo_state() local
1593 return scnprintf(buf, PAGE_SIZE, "%d\n", !!st->dma_st.dma_chan); in at91_adc_get_fifo_state()
1601 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_get_watermark() local
1603 return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark); in at91_adc_get_watermark()
1648 struct at91_adc_state *st; in at91_adc_probe() local
1653 indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); in at91_adc_probe()
1664 st = iio_priv(indio_dev); in at91_adc_probe()
1666 bitmap_set(&st->touch_st.channels_bitmask, in at91_adc_probe()
1668 bitmap_set(&st->touch_st.channels_bitmask, in at91_adc_probe()
1670 bitmap_set(&st->touch_st.channels_bitmask, in at91_adc_probe()
1673 st->oversampling_ratio = AT91_OSR_1SAMPLES; in at91_adc_probe()
1677 &st->soc_info.min_sample_rate); in at91_adc_probe()
1686 &st->soc_info.max_sample_rate); in at91_adc_probe()
1694 &st->soc_info.startup_time); in at91_adc_probe()
1708 st->selected_trig = NULL; in at91_adc_probe()
1713 st->selected_trig = &at91_adc_trigger_list[i]; in at91_adc_probe()
1717 if (!st->selected_trig) { in at91_adc_probe()
1722 init_waitqueue_head(&st->wq_data_available); in at91_adc_probe()
1723 mutex_init(&st->lock); in at91_adc_probe()
1724 INIT_WORK(&st->touch_st.workq, at91_adc_workq_handler); in at91_adc_probe()
1731 st->dma_st.phys_addr = res->start; in at91_adc_probe()
1733 st->base = devm_ioremap_resource(&pdev->dev, res); in at91_adc_probe()
1734 if (IS_ERR(st->base)) in at91_adc_probe()
1735 return PTR_ERR(st->base); in at91_adc_probe()
1737 st->irq = platform_get_irq(pdev, 0); in at91_adc_probe()
1738 if (st->irq <= 0) { in at91_adc_probe()
1739 if (!st->irq) in at91_adc_probe()
1740 st->irq = -ENXIO; in at91_adc_probe()
1742 return st->irq; in at91_adc_probe()
1745 st->per_clk = devm_clk_get(&pdev->dev, "adc_clk"); in at91_adc_probe()
1746 if (IS_ERR(st->per_clk)) in at91_adc_probe()
1747 return PTR_ERR(st->per_clk); in at91_adc_probe()
1749 st->reg = devm_regulator_get(&pdev->dev, "vddana"); in at91_adc_probe()
1750 if (IS_ERR(st->reg)) in at91_adc_probe()
1751 return PTR_ERR(st->reg); in at91_adc_probe()
1753 st->vref = devm_regulator_get(&pdev->dev, "vref"); in at91_adc_probe()
1754 if (IS_ERR(st->vref)) in at91_adc_probe()
1755 return PTR_ERR(st->vref); in at91_adc_probe()
1757 ret = devm_request_irq(&pdev->dev, st->irq, at91_adc_interrupt, 0, in at91_adc_probe()
1762 ret = regulator_enable(st->reg); in at91_adc_probe()
1766 ret = regulator_enable(st->vref); in at91_adc_probe()
1770 st->vref_uv = regulator_get_voltage(st->vref); in at91_adc_probe()
1771 if (st->vref_uv <= 0) { in at91_adc_probe()
1776 at91_adc_hw_init(st); in at91_adc_probe()
1778 ret = clk_prepare_enable(st->per_clk); in at91_adc_probe()
1790 if (st->selected_trig->hw_trig) { in at91_adc_probe()
1800 st->dma_st.watermark = 1; in at91_adc_probe()
1813 if (st->selected_trig->hw_trig) in at91_adc_probe()
1815 st->selected_trig->name); in at91_adc_probe()
1818 readl_relaxed(st->base + AT91_SAMA5D2_VERSION)); in at91_adc_probe()
1825 clk_disable_unprepare(st->per_clk); in at91_adc_probe()
1827 regulator_disable(st->vref); in at91_adc_probe()
1829 regulator_disable(st->reg); in at91_adc_probe()
1836 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_remove() local
1842 clk_disable_unprepare(st->per_clk); in at91_adc_remove()
1844 regulator_disable(st->vref); in at91_adc_remove()
1845 regulator_disable(st->reg); in at91_adc_remove()
1854 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_suspend() local
1862 at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_SWRST); in at91_adc_suspend()
1864 clk_disable_unprepare(st->per_clk); in at91_adc_suspend()
1865 regulator_disable(st->vref); in at91_adc_suspend()
1866 regulator_disable(st->reg); in at91_adc_suspend()
1875 struct at91_adc_state *st = iio_priv(indio_dev); in at91_adc_resume() local
1882 ret = regulator_enable(st->reg); in at91_adc_resume()
1886 ret = regulator_enable(st->vref); in at91_adc_resume()
1890 ret = clk_prepare_enable(st->per_clk); in at91_adc_resume()
1894 at91_adc_hw_init(st); in at91_adc_resume()
1902 &st->touch_st.channels_bitmask, in at91_adc_resume()
1905 return at91_adc_configure_touch(st, true); in at91_adc_resume()
1907 return at91_adc_configure_trigger(st->trig, true); in at91_adc_resume()
1914 regulator_disable(st->vref); in at91_adc_resume()
1916 regulator_disable(st->reg); in at91_adc_resume()