Lines Matching +full:1 +full:st
36 #define AT91_ADC_SWRST (1 << 0) /* Software Reset */
37 #define AT91_ADC_START (1 << 1) /* Start Conversion */
42 #define AT91_ADC_TSAMOD_TS_ONLY_MODE (1 << 0) /* Touch Screen Only Mode */
43 #define AT91_ADC_TRGEN (1 << 0) /* Trigger Enable */
44 #define AT91_ADC_TRGSEL (7 << 1) /* Trigger Selection */
45 #define AT91_ADC_TRGSEL_TC0 (0 << 1)
46 #define AT91_ADC_TRGSEL_TC1 (1 << 1)
47 #define AT91_ADC_TRGSEL_TC2 (2 << 1)
48 #define AT91_ADC_TRGSEL_EXTERNAL (6 << 1)
49 #define AT91_ADC_LOWRES (1 << 4) /* Low Resolution */
50 #define AT91_ADC_SLEEP (1 << 5) /* Sleep Mode */
51 #define AT91_ADC_PENDET (1 << 6) /* Pen contact detection enable */
71 #define AT91_ADC_CH(n) (1 << (n)) /* Channel Number */
74 #define AT91_ADC_EOC(n) (1 << (n)) /* End of Conversion on Channel N */
75 #define AT91_ADC_OVRE(n) (1 << ((n) + 8))/* Overrun Error on Channel N */
76 #define AT91_ADC_DRDY (1 << 16) /* Data Ready */
77 #define AT91_ADC_GOVRE (1 << 17) /* General Overrun Error */
78 #define AT91_ADC_ENDRX (1 << 18) /* End of RX Buffer */
79 #define AT91_ADC_RXFUFF (1 << 19) /* RX Buffer Full */
82 #define AT91_ADC_SR_DRDY_9X5 (1 << 24) /* Data Ready */
90 #define AT91RL_ADC_IER_PEN (1 << 20)
91 #define AT91RL_ADC_IER_NOPEN (1 << 21)
92 #define AT91_ADC_IER_PEN (1 << 29)
93 #define AT91_ADC_IER_NOPEN (1 << 30)
94 #define AT91_ADC_IER_XRDY (1 << 20)
95 #define AT91_ADC_IER_YRDY (1 << 21)
96 #define AT91_ADC_IER_PRDY (1 << 22)
97 #define AT91_ADC_ISR_PENS (1 << 31)
110 #define AT91_ADC_TSMR_TSMODE_4WIRE_NO_PRESS (1 << 0)
119 #define AT91_ADC_TSMR_NOTSDMA (1 << 22) /* No Touchscreen DMA */
121 #define AT91_ADC_TSMR_PENDET_ENA (1 << 24) /* Pen contact detection enable */
138 #define AT91_ADC_CHAN(st, ch) \ argument
139 (st->registers->channel_base + (ch * 4))
140 #define at91_adc_readl(st, reg) \ argument
141 (readl_relaxed(st->reg_base + reg))
142 #define at91_adc_writel(st, reg, val) \ argument
143 (writel_relaxed(val, st->reg_base + reg))
249 struct at91_adc_state *st = iio_priv(idev); in at91_adc_trigger_handler() local
257 st->buffer[j] = at91_adc_readl(st, AT91_ADC_CHAN(st, chan->channel)); in at91_adc_trigger_handler()
261 iio_push_to_buffers_with_timestamp(idev, st->buffer, pf->timestamp); in at91_adc_trigger_handler()
266 at91_adc_readl(st, AT91_ADC_LCDR); in at91_adc_trigger_handler()
268 enable_irq(st->irq); in at91_adc_trigger_handler()
276 struct at91_adc_state *st = iio_priv(idev); in handle_adc_eoc_trigger() local
282 st->last_value = at91_adc_readl(st, AT91_ADC_CHAN(st, st->chnb)); in handle_adc_eoc_trigger()
284 at91_adc_readl(st, AT91_ADC_LCDR); in handle_adc_eoc_trigger()
285 st->done = true; in handle_adc_eoc_trigger()
286 wake_up_interruptible(&st->wq_data_avail); in handle_adc_eoc_trigger()
292 struct at91_adc_state *st = iio_priv(idev); in at91_ts_sample() local
295 unsigned int rxp = 1; in at91_ts_sample()
298 unsigned int xyz_mask_bits = st->res; in at91_ts_sample()
299 unsigned int xyz_mask = (1 << xyz_mask_bits) - 1; in at91_ts_sample()
302 /* x position = (x / xscale) * max, max = 2^MAX_POS_BITS - 1 */ in at91_ts_sample()
303 reg = at91_adc_readl(st, AT91_ADC_TSXPOSR); in at91_ts_sample()
309 return -1; in at91_ts_sample()
313 /* y position = (y / yscale) * max, max = 2^MAX_POS_BITS - 1 */ in at91_ts_sample()
314 reg = at91_adc_readl(st, AT91_ADC_TSYPOSR); in at91_ts_sample()
320 return -1; in at91_ts_sample()
325 reg = at91_adc_readl(st, AT91_ADC_TSPRESSR); in at91_ts_sample()
333 pres = st->ts_pressure_threshold; /* no pen contacted */ in at91_ts_sample()
338 if (pres < st->ts_pressure_threshold) { in at91_ts_sample()
341 input_report_abs(st->ts_input, ABS_X, x); in at91_ts_sample()
342 input_report_abs(st->ts_input, ABS_Y, y); in at91_ts_sample()
343 input_report_abs(st->ts_input, ABS_PRESSURE, pres); in at91_ts_sample()
344 input_report_key(st->ts_input, BTN_TOUCH, 1); in at91_ts_sample()
345 input_sync(st->ts_input); in at91_ts_sample()
356 struct at91_adc_state *st = iio_priv(idev); in at91_adc_rl_interrupt() local
357 u32 status = at91_adc_readl(st, st->registers->status_register); in at91_adc_rl_interrupt()
360 status &= at91_adc_readl(st, AT91_ADC_IMR); in at91_adc_rl_interrupt()
361 if (status & GENMASK(st->num_channels - 1, 0)) in at91_adc_rl_interrupt()
366 reg = at91_adc_readl(st, AT91_ADC_MR); in at91_adc_rl_interrupt()
368 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_adc_rl_interrupt()
370 at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_PEN); in at91_adc_rl_interrupt()
371 at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_NOPEN in at91_adc_rl_interrupt()
374 at91_adc_writel(st, st->registers->trigger_register, in at91_adc_rl_interrupt()
376 AT91_ADC_TRGR_TRGPER_(st->ts_sample_period_val)); in at91_adc_rl_interrupt()
378 reg = at91_adc_readl(st, AT91_ADC_MR); in at91_adc_rl_interrupt()
379 reg |= AT91_ADC_PENDBC_(st->ts_pendbc) & AT91_ADC_PENDBC; in at91_adc_rl_interrupt()
380 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_adc_rl_interrupt()
381 at91_adc_writel(st, st->registers->trigger_register, in at91_adc_rl_interrupt()
384 at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_NOPEN in at91_adc_rl_interrupt()
386 at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_PEN); in at91_adc_rl_interrupt()
387 st->ts_bufferedmeasure = false; in at91_adc_rl_interrupt()
388 input_report_key(st->ts_input, BTN_TOUCH, 0); in at91_adc_rl_interrupt()
389 input_sync(st->ts_input); in at91_adc_rl_interrupt()
390 } else if (status & AT91_ADC_EOC(3) && st->ts_input) { in at91_adc_rl_interrupt()
392 if (st->ts_bufferedmeasure) { in at91_adc_rl_interrupt()
398 input_report_abs(st->ts_input, ABS_X, st->ts_prev_absx); in at91_adc_rl_interrupt()
399 input_report_abs(st->ts_input, ABS_Y, st->ts_prev_absy); in at91_adc_rl_interrupt()
400 input_report_key(st->ts_input, BTN_TOUCH, 1); in at91_adc_rl_interrupt()
401 input_sync(st->ts_input); in at91_adc_rl_interrupt()
403 st->ts_bufferedmeasure = true; in at91_adc_rl_interrupt()
406 st->ts_prev_absx = at91_adc_readl(st, AT91_ADC_CHAN(st, 3)) in at91_adc_rl_interrupt()
408 st->ts_prev_absx /= at91_adc_readl(st, AT91_ADC_CHAN(st, 2)); in at91_adc_rl_interrupt()
410 st->ts_prev_absy = at91_adc_readl(st, AT91_ADC_CHAN(st, 1)) in at91_adc_rl_interrupt()
412 st->ts_prev_absy /= at91_adc_readl(st, AT91_ADC_CHAN(st, 0)); in at91_adc_rl_interrupt()
421 struct at91_adc_state *st = iio_priv(idev); in at91_adc_9x5_interrupt() local
422 u32 status = at91_adc_readl(st, st->registers->status_register); in at91_adc_9x5_interrupt()
428 if (status & GENMASK(st->num_channels - 1, 0)) in at91_adc_9x5_interrupt()
432 at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN); in at91_adc_9x5_interrupt()
433 at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_NOPEN | in at91_adc_9x5_interrupt()
436 at91_adc_writel(st, st->registers->trigger_register, in at91_adc_9x5_interrupt()
438 AT91_ADC_TRGR_TRGPER_(st->ts_sample_period_val)); in at91_adc_9x5_interrupt()
440 at91_adc_writel(st, st->registers->trigger_register, 0); in at91_adc_9x5_interrupt()
441 at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_NOPEN | in at91_adc_9x5_interrupt()
443 at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN); in at91_adc_9x5_interrupt()
445 input_report_key(st->ts_input, BTN_TOUCH, 0); in at91_adc_9x5_interrupt()
446 input_sync(st->ts_input); in at91_adc_9x5_interrupt()
457 at91_adc_readl(st, AT91_ADC_TSXPOSR); in at91_adc_9x5_interrupt()
458 at91_adc_readl(st, AT91_ADC_TSYPOSR); in at91_adc_9x5_interrupt()
459 at91_adc_readl(st, AT91_ADC_TSPRESSR); in at91_adc_9x5_interrupt()
468 struct at91_adc_state *st = iio_priv(idev); in at91_adc_channel_init() local
474 if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE) in at91_adc_channel_init()
476 else if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_5WIRE) in at91_adc_channel_init()
480 st->channels_mask &= ~rsvd_mask; in at91_adc_channel_init()
482 idev->num_channels = bitmap_weight(&st->channels_mask, in at91_adc_channel_init()
483 st->num_channels) + 1; in at91_adc_channel_init()
486 ((idev->num_channels + 1) * in at91_adc_channel_init()
493 for_each_set_bit(bit, &st->channels_mask, st->num_channels) { in at91_adc_channel_init()
497 chan->indexed = 1; in at91_adc_channel_init()
501 chan->scan_type.realbits = st->res; in at91_adc_channel_init()
510 timestamp->channel = -1; in at91_adc_channel_init()
524 struct at91_adc_state *st = iio_priv(idev); in at91_adc_get_trigger_value_by_name() local
527 for (i = 0; i < st->trigger_number; i++) { in at91_adc_get_trigger_value_by_name()
552 struct at91_adc_state *st = iio_priv(idev); in at91_adc_configure_trigger() local
553 struct at91_adc_reg_desc *reg = st->registers; in at91_adc_configure_trigger()
554 u32 status = at91_adc_readl(st, reg->trigger_register); in at91_adc_configure_trigger()
559 st->trigger_list, in at91_adc_configure_trigger()
565 st->buffer = kmalloc(idev->scan_bytes, GFP_KERNEL); in at91_adc_configure_trigger()
566 if (st->buffer == NULL) in at91_adc_configure_trigger()
569 at91_adc_writel(st, reg->trigger_register, in at91_adc_configure_trigger()
573 st->num_channels) { in at91_adc_configure_trigger()
575 at91_adc_writel(st, AT91_ADC_CHER, in at91_adc_configure_trigger()
579 at91_adc_writel(st, AT91_ADC_IER, reg->drdy_mask); in at91_adc_configure_trigger()
582 at91_adc_writel(st, AT91_ADC_IDR, reg->drdy_mask); in at91_adc_configure_trigger()
584 at91_adc_writel(st, reg->trigger_register, in at91_adc_configure_trigger()
588 st->num_channels) { in at91_adc_configure_trigger()
590 at91_adc_writel(st, AT91_ADC_CHDR, in at91_adc_configure_trigger()
593 kfree(st->buffer); in at91_adc_configure_trigger()
629 struct at91_adc_state *st = iio_priv(idev); in at91_adc_trigger_init() local
632 st->trig = devm_kcalloc(&idev->dev, in at91_adc_trigger_init()
633 st->trigger_number, sizeof(*st->trig), in at91_adc_trigger_init()
636 if (st->trig == NULL) { in at91_adc_trigger_init()
641 for (i = 0; i < st->trigger_number; i++) { in at91_adc_trigger_init()
642 if (st->trigger_list[i].is_external && !(st->use_external)) in at91_adc_trigger_init()
645 st->trig[i] = at91_adc_allocate_trigger(idev, in at91_adc_trigger_init()
646 st->trigger_list + i); in at91_adc_trigger_init()
647 if (st->trig[i] == NULL) { in at91_adc_trigger_init()
659 iio_trigger_unregister(st->trig[i]); in at91_adc_trigger_init()
660 iio_trigger_free(st->trig[i]); in at91_adc_trigger_init()
668 struct at91_adc_state *st = iio_priv(idev); in at91_adc_trigger_remove() local
671 for (i = 0; i < st->trigger_number; i++) { in at91_adc_trigger_remove()
672 iio_trigger_unregister(st->trig[i]); in at91_adc_trigger_remove()
673 iio_trigger_free(st->trig[i]); in at91_adc_trigger_remove()
692 struct at91_adc_state *st = iio_priv(idev); in at91_adc_read_raw() local
697 mutex_lock(&st->lock); in at91_adc_read_raw()
699 st->chnb = chan->channel; in at91_adc_read_raw()
700 at91_adc_writel(st, AT91_ADC_CHER, in at91_adc_read_raw()
702 at91_adc_writel(st, AT91_ADC_IER, BIT(chan->channel)); in at91_adc_read_raw()
703 at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_START); in at91_adc_read_raw()
705 ret = wait_event_interruptible_timeout(st->wq_data_avail, in at91_adc_read_raw()
706 st->done, in at91_adc_read_raw()
712 at91_adc_writel(st, AT91_ADC_CHDR, in at91_adc_read_raw()
714 at91_adc_writel(st, AT91_ADC_IDR, BIT(chan->channel)); in at91_adc_read_raw()
718 *val = st->last_value; in at91_adc_read_raw()
719 st->last_value = 0; in at91_adc_read_raw()
720 st->done = false; in at91_adc_read_raw()
729 mutex_unlock(&st->lock); in at91_adc_read_raw()
733 *val = st->vref_mv; in at91_adc_read_raw()
745 struct at91_adc_state *st = iio_priv(idev); in at91_adc_of_get_resolution() local
778 st->res = resolutions[i]; in at91_adc_of_get_resolution()
780 st->low_res = true; in at91_adc_of_get_resolution()
782 st->low_res = false; in at91_adc_of_get_resolution()
784 dev_info(&idev->dev, "Resolution used: %u bits\n", st->res); in at91_adc_of_get_resolution()
801 * Startup Time = (ticks + 1) * 8 / ADC Clock in calc_startup_ticks_9260()
803 return round_up((startup_time * adc_clk_khz / 1000) - 1, 8) / 8; in calc_startup_ticks_9260()
829 ticks = size - 1; in calc_startup_ticks_9x5()
837 struct at91_adc_state *st, struct device *dev) in at91_adc_probe_dt_ts() argument
851 st->touchscreen_type = prop; in at91_adc_probe_dt_ts()
858 if (!st->caps->has_tsmr) in at91_adc_probe_dt_ts()
862 st->ts_pressure_threshold = prop; in at91_adc_probe_dt_ts()
863 if (st->ts_pressure_threshold) { in at91_adc_probe_dt_ts()
874 struct at91_adc_state *st = iio_priv(idev); in at91_adc_probe_dt() local
883 st->caps = (struct at91_adc_caps *) in at91_adc_probe_dt()
886 st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers"); in at91_adc_probe_dt()
893 st->channels_mask = prop; in at91_adc_probe_dt()
895 st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode"); in at91_adc_probe_dt()
902 st->startup_time = prop; in at91_adc_probe_dt()
906 st->sample_hold_time = prop; in at91_adc_probe_dt()
913 st->vref_mv = prop; in at91_adc_probe_dt()
919 st->registers = &st->caps->registers; in at91_adc_probe_dt()
920 st->num_channels = st->caps->num_channels; in at91_adc_probe_dt()
921 st->trigger_number = of_get_child_count(node); in at91_adc_probe_dt()
922 st->trigger_list = devm_kcalloc(&idev->dev, in at91_adc_probe_dt()
923 st->trigger_number, in at91_adc_probe_dt()
926 if (!st->trigger_list) { in at91_adc_probe_dt()
933 struct at91_adc_trigger *trig = st->trigger_list + i; in at91_adc_probe_dt()
954 if (st->caps->has_ts) in at91_adc_probe_dt()
955 return at91_adc_probe_dt_ts(node, st, &idev->dev); in at91_adc_probe_dt()
965 static int at91_adc_probe_pdata(struct at91_adc_state *st, in at91_adc_probe_pdata() argument
973 st->caps = (struct at91_adc_caps *) in at91_adc_probe_pdata()
976 st->use_external = pdata->use_external_triggers; in at91_adc_probe_pdata()
977 st->vref_mv = pdata->vref; in at91_adc_probe_pdata()
978 st->channels_mask = pdata->channels_used; in at91_adc_probe_pdata()
979 st->num_channels = st->caps->num_channels; in at91_adc_probe_pdata()
980 st->startup_time = pdata->startup_time; in at91_adc_probe_pdata()
981 st->trigger_number = pdata->trigger_number; in at91_adc_probe_pdata()
982 st->trigger_list = pdata->trigger_list; in at91_adc_probe_pdata()
983 st->registers = &st->caps->registers; in at91_adc_probe_pdata()
984 st->touchscreen_type = pdata->touchscreen_type; in at91_adc_probe_pdata()
996 struct at91_adc_state *st = input_get_drvdata(dev); in atmel_ts_open() local
998 if (st->caps->has_tsmr) in atmel_ts_open()
999 at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN); in atmel_ts_open()
1001 at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_PEN); in atmel_ts_open()
1007 struct at91_adc_state *st = input_get_drvdata(dev); in atmel_ts_close() local
1009 if (st->caps->has_tsmr) in atmel_ts_close()
1010 at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN); in atmel_ts_close()
1012 at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_PEN); in atmel_ts_close()
1017 struct at91_adc_state *st = iio_priv(idev); in at91_ts_hw_init() local
1026 st->ts_pendbc = round_up(TOUCH_PEN_DETECT_DEBOUNCE_US * adc_clk_khz / in at91_ts_hw_init()
1027 1000, 1); in at91_ts_hw_init()
1029 while (st->ts_pendbc >> ++i) in at91_ts_hw_init()
1031 if (abs(st->ts_pendbc - (1 << i)) < abs(st->ts_pendbc - (1 << (i - 1)))) in at91_ts_hw_init()
1032 st->ts_pendbc = i; in at91_ts_hw_init()
1034 st->ts_pendbc = i - 1; in at91_ts_hw_init()
1036 if (!st->caps->has_tsmr) { in at91_ts_hw_init()
1037 reg = at91_adc_readl(st, AT91_ADC_MR); in at91_ts_hw_init()
1040 reg |= AT91_ADC_PENDBC_(st->ts_pendbc) & AT91_ADC_PENDBC; in at91_ts_hw_init()
1041 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_ts_hw_init()
1044 at91_adc_writel(st, AT91_ADC_TSR, reg); in at91_ts_hw_init()
1046 st->ts_sample_period_val = round_up((TOUCH_SAMPLE_PERIOD_US_RL * in at91_ts_hw_init()
1047 adc_clk_khz / 1000) - 1, 1); in at91_ts_hw_init()
1060 if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE) in at91_ts_hw_init()
1066 reg |= AT91_ADC_TSMR_TSAV_(st->caps->ts_filter_average) in at91_ts_hw_init()
1068 reg |= AT91_ADC_TSMR_PENDBC_(st->ts_pendbc) & AT91_ADC_TSMR_PENDBC; in at91_ts_hw_init()
1073 at91_adc_writel(st, AT91_ADC_TSMR, reg); in at91_ts_hw_init()
1077 * 0 = 200 kOhm, 1 = 150 kOhm, 2 = 100 kOhm, 3 = 50 kOhm in at91_ts_hw_init()
1080 at91_adc_writel(st, AT91_ADC_ACR, st->caps->ts_pen_detect_sensitivity in at91_ts_hw_init()
1083 /* Sample Period Time = (TRGPER + 1) / ADCClock */ in at91_ts_hw_init()
1084 st->ts_sample_period_val = round_up((TOUCH_SAMPLE_PERIOD_US * in at91_ts_hw_init()
1085 adc_clk_khz / 1000) - 1, 1); in at91_ts_hw_init()
1093 struct at91_adc_state *st = iio_priv(idev); in at91_ts_register() local
1112 if (st->caps->has_tsmr) { in at91_ts_register()
1113 input_set_abs_params(input, ABS_X, 0, (1 << MAX_POS_BITS) - 1, in at91_ts_register()
1115 input_set_abs_params(input, ABS_Y, 0, (1 << MAX_POS_BITS) - 1, in at91_ts_register()
1119 if (st->touchscreen_type != ATMEL_ADC_TOUCHSCREEN_4WIRE) { in at91_ts_register()
1126 input_set_abs_params(input, ABS_X, 0, (1 << MAX_RLPOS_BITS) - 1, in at91_ts_register()
1128 input_set_abs_params(input, ABS_Y, 0, (1 << MAX_RLPOS_BITS) - 1, in at91_ts_register()
1132 st->ts_input = input; in at91_ts_register()
1133 input_set_drvdata(input, st); in at91_ts_register()
1142 input_free_device(st->ts_input); in at91_ts_register()
1146 static void at91_ts_unregister(struct at91_adc_state *st) in at91_ts_unregister() argument
1148 input_unregister_device(st->ts_input); in at91_ts_unregister()
1156 struct at91_adc_state *st; in at91_adc_probe() local
1163 st = iio_priv(idev); in at91_adc_probe()
1168 ret = at91_adc_probe_pdata(st, pdev); in at91_adc_probe()
1181 st->irq = platform_get_irq(pdev, 0); in at91_adc_probe()
1182 if (st->irq < 0) in at91_adc_probe()
1185 st->reg_base = devm_platform_ioremap_resource(pdev, 0); in at91_adc_probe()
1186 if (IS_ERR(st->reg_base)) in at91_adc_probe()
1187 return PTR_ERR(st->reg_base); in at91_adc_probe()
1193 at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_SWRST); in at91_adc_probe()
1194 at91_adc_writel(st, AT91_ADC_IDR, 0xFFFFFFFF); in at91_adc_probe()
1196 if (st->caps->has_tsmr) in at91_adc_probe()
1197 ret = request_irq(st->irq, at91_adc_9x5_interrupt, 0, in at91_adc_probe()
1200 ret = request_irq(st->irq, at91_adc_rl_interrupt, 0, in at91_adc_probe()
1207 st->clk = devm_clk_get(&pdev->dev, "adc_clk"); in at91_adc_probe()
1208 if (IS_ERR(st->clk)) { in at91_adc_probe()
1210 ret = PTR_ERR(st->clk); in at91_adc_probe()
1214 ret = clk_prepare_enable(st->clk); in at91_adc_probe()
1221 st->adc_clk = devm_clk_get(&pdev->dev, "adc_op_clk"); in at91_adc_probe()
1222 if (IS_ERR(st->adc_clk)) { in at91_adc_probe()
1224 ret = PTR_ERR(st->adc_clk); in at91_adc_probe()
1228 ret = clk_prepare_enable(st->adc_clk); in at91_adc_probe()
1237 * datasheet : ADC Clock = MCK / ((Prescaler + 1) * 2), ADC Clock being in at91_adc_probe()
1240 mstrclk = clk_get_rate(st->clk); in at91_adc_probe()
1241 adc_clk = clk_get_rate(st->adc_clk); in at91_adc_probe()
1247 prsc = (mstrclk / (2 * adc_clk)) - 1; in at91_adc_probe()
1249 if (!st->startup_time) { in at91_adc_probe()
1254 ticks = (*st->caps->calc_startup_ticks)(st->startup_time, adc_clk_khz); in at91_adc_probe()
1259 * The formula thus is : Sample and Hold Time = (shtim + 1) / ADCClock in at91_adc_probe()
1261 if (st->sample_hold_time > 0) in at91_adc_probe()
1262 shtim = round_up((st->sample_hold_time * adc_clk_khz / 1000) in at91_adc_probe()
1263 - 1, 1); in at91_adc_probe()
1267 reg = AT91_ADC_PRESCAL_(prsc) & st->registers->mr_prescal_mask; in at91_adc_probe()
1268 reg |= AT91_ADC_STARTUP_(ticks) & st->registers->mr_startup_mask; in at91_adc_probe()
1269 if (st->low_res) in at91_adc_probe()
1271 if (st->sleep_mode) in at91_adc_probe()
1274 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_adc_probe()
1283 init_waitqueue_head(&st->wq_data_avail); in at91_adc_probe()
1284 mutex_init(&st->lock); in at91_adc_probe()
1291 if (!st->touchscreen_type) { in at91_adc_probe()
1321 if (!st->touchscreen_type) { in at91_adc_probe()
1325 at91_ts_unregister(st); in at91_adc_probe()
1328 clk_disable_unprepare(st->adc_clk); in at91_adc_probe()
1330 clk_disable_unprepare(st->clk); in at91_adc_probe()
1332 free_irq(st->irq, idev); in at91_adc_probe()
1339 struct at91_adc_state *st = iio_priv(idev); in at91_adc_remove() local
1342 if (!st->touchscreen_type) { in at91_adc_remove()
1346 at91_ts_unregister(st); in at91_adc_remove()
1348 clk_disable_unprepare(st->adc_clk); in at91_adc_remove()
1349 clk_disable_unprepare(st->clk); in at91_adc_remove()
1350 free_irq(st->irq, idev); in at91_adc_remove()
1359 struct at91_adc_state *st = iio_priv(idev); in at91_adc_suspend() local
1362 clk_disable_unprepare(st->clk); in at91_adc_suspend()
1370 struct at91_adc_state *st = iio_priv(idev); in at91_adc_resume() local
1372 clk_prepare_enable(st->clk); in at91_adc_resume()