Lines Matching refs:wled
181 struct wled {
207 int (*wled_set_brightness)(struct wled *wled, u16 brightness);
210 int (*wled_cabc_config)(struct wled *wled, bool enable);
216 int (*wled_sync_toggle)(struct wled *wled);
219 * Time to wait before checking the OVP status after wled module enable.
222 int (*wled_ovp_delay)(struct wled *wled);
228 bool (*wled_auto_detection_required)(struct wled *wled);
231 static int wled3_set_brightness(struct wled *wled, u16 brightness)
238 for (i = 0; i < wled->cfg.num_strings; ++i) {
239 rc = regmap_bulk_write(wled->regmap, wled->ctrl_addr +
240 WLED3_SINK_REG_BRIGHT(wled->cfg.enabled_strings[i]),
249 static int wled4_set_brightness(struct wled *wled, u16 brightness)
252 u16 low_limit = wled->max_brightness * 4 / 1000;
261 for (i = 0; i < wled->cfg.num_strings; ++i) {
262 rc = regmap_bulk_write(wled->regmap, wled->sink_addr +
263 WLED4_SINK_REG_BRIGHT(wled->cfg.enabled_strings[i]),
272 static int wled5_set_brightness(struct wled *wled, u16 brightness)
275 u16 low_limit = wled->max_brightness * 1 / 1000;
284 offset = (wled->cfg.mod_sel == MOD_A) ?
288 rc = regmap_bulk_write(wled->regmap, wled->sink_addr + offset,
295 struct wled *wled = container_of(work,
296 struct wled, ovp_work.work);
297 enable_irq(wled->ovp_irq);
300 static int wled_module_enable(struct wled *wled, int val)
304 if (wled->disabled_by_short)
307 rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
314 if (wled->ovp_irq > 0) {
322 schedule_delayed_work(&wled->ovp_work, HZ / 100);
324 if (!cancel_delayed_work_sync(&wled->ovp_work))
325 disable_irq(wled->ovp_irq);
332 static int wled3_sync_toggle(struct wled *wled)
335 unsigned int mask = GENMASK(wled->max_string_count - 1, 0);
337 rc = regmap_update_bits(wled->regmap,
338 wled->sink_addr + WLED3_SINK_REG_SYNC,
343 rc = regmap_update_bits(wled->regmap,
344 wled->sink_addr + WLED3_SINK_REG_SYNC,
350 static int wled5_mod_sync_toggle(struct wled *wled)
355 rc = regmap_update_bits(wled->regmap,
356 wled->sink_addr + WLED5_SINK_REG_MOD_SYNC_BIT,
361 val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_SYNC_MOD_A_BIT :
363 return regmap_update_bits(wled->regmap,
364 wled->sink_addr + WLED5_SINK_REG_MOD_SYNC_BIT,
368 static int wled_ovp_fault_status(struct wled *wled, bool *fault_set)
374 rc = regmap_read(wled->regmap,
375 wled->ctrl_addr + WLED3_CTRL_REG_INT_RT_STS,
378 dev_err(wled->dev, "Failed to read INT_RT_STS rc=%d\n", rc);
382 rc = regmap_read(wled->regmap,
383 wled->ctrl_addr + WLED3_CTRL_REG_FAULT_STATUS,
386 dev_err(wled->dev, "Failed to read FAULT_STATUS rc=%d\n", rc);
393 if (wled->version == 4 && (fault_sts & WLED3_CTRL_REG_OVP_FAULT_BIT))
396 if (wled->version == 5 && (fault_sts & (WLED3_CTRL_REG_OVP_FAULT_BIT |
401 dev_dbg(wled->dev, "WLED OVP fault detected, int_rt_sts=0x%x fault_sts=0x%x\n",
407 static int wled4_ovp_delay(struct wled *wled)
412 static int wled5_ovp_delay(struct wled *wled)
419 rc = regmap_read(wled->regmap, wled->ctrl_addr +
427 dev_dbg(wled->dev, "delay_time_us: %d\n", delay_us);
434 struct wled *wled = bl_get_data(bl);
438 mutex_lock(&wled->lock);
440 rc = wled->wled_set_brightness(wled, brightness);
442 dev_err(wled->dev, "wled failed to set brightness rc:%d\n",
447 if (wled->version < 5) {
448 rc = wled->wled_sync_toggle(wled);
450 dev_err(wled->dev, "wled sync failed rc:%d\n", rc);
458 rc = wled5_mod_sync_toggle(wled);
460 dev_err(wled->dev, "wled mod sync failed rc:%d\n",
467 if (!!brightness != !!wled->brightness) {
468 rc = wled_module_enable(wled, !!brightness);
470 dev_err(wled->dev, "wled enable failed rc:%d\n", rc);
475 wled->brightness = brightness;
478 mutex_unlock(&wled->lock);
483 static int wled4_cabc_config(struct wled *wled, bool enable)
488 for (i = 0; i < wled->cfg.num_strings; i++) {
489 j = wled->cfg.enabled_strings[i];
492 rc = regmap_update_bits(wled->regmap, wled->sink_addr +
502 static int wled5_cabc_config(struct wled *wled, bool enable)
507 if (wled->cabc_disabled)
510 reg = enable ? wled->cfg.cabc_sel : 0;
511 offset = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_MOD_A_SRC_SEL :
514 rc = regmap_update_bits(wled->regmap, wled->sink_addr + offset,
521 if (!wled->cfg.cabc_sel)
522 wled->cabc_disabled = true;
533 struct wled *wled = _wled;
537 wled->short_count++;
538 mutex_lock(&wled->lock);
539 rc = wled_module_enable(wled, false);
541 dev_err(wled->dev, "wled disable failed rc:%d\n", rc);
546 wled->last_short_event);
548 wled->short_count = 1;
550 if (wled->short_count > WLED_SHORT_CNT_MAX) {
551 dev_err(wled->dev, "Short triggered %d times, disabling WLED forever!\n",
552 wled->short_count);
553 wled->disabled_by_short = true;
557 wled->last_short_event = ktime_get();
560 rc = wled_module_enable(wled, true);
562 dev_err(wled->dev, "wled enable failed rc:%d\n", rc);
565 mutex_unlock(&wled->lock);
572 static void wled_auto_string_detection(struct wled *wled)
580 rc = regmap_read(wled->regmap, wled->sink_addr +
583 dev_err(wled->dev, "Failed to read SINK configuration rc=%d\n",
589 rc = regmap_update_bits(wled->regmap,
590 wled->ctrl_addr + WLED3_CTRL_REG_MOD_EN,
593 dev_err(wled->dev, "Failed to disable WLED module rc=%d\n", rc);
598 rc = wled4_set_brightness(wled, AUTO_DETECT_BRIGHTNESS);
600 dev_err(wled->dev, "Failed to set brightness for auto detection rc=%d\n",
605 if (wled->cfg.cabc) {
606 rc = wled->wled_cabc_config(wled, false);
612 rc = regmap_write(wled->regmap,
613 wled->sink_addr + WLED4_SINK_REG_CURR_SINK, 0);
615 dev_err(wled->dev, "Failed to disable all sinks rc=%d\n", rc);
620 for (i = 0; i < wled->cfg.num_strings; i++) {
621 j = wled->cfg.enabled_strings[i];
625 rc = regmap_write(wled->regmap, wled->ctrl_addr +
628 dev_err(wled->dev, "Failed to enable feedback for SINK %d rc = %d\n",
634 rc = regmap_write(wled->regmap, wled->sink_addr +
637 dev_err(wled->dev, "Failed to configure SINK %d rc=%d\n",
643 rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
648 dev_err(wled->dev, "Failed to enable WLED module rc=%d\n",
653 delay_time_us = wled->wled_ovp_delay(wled);
656 rc = wled_ovp_fault_status(wled, &fault_set);
658 dev_err(wled->dev, "Error in getting OVP fault_sts, rc=%d\n",
664 dev_dbg(wled->dev, "WLED OVP fault detected with SINK %d\n",
670 rc = regmap_update_bits(wled->regmap,
671 wled->ctrl_addr + WLED3_CTRL_REG_MOD_EN,
674 dev_err(wled->dev, "Failed to disable WLED module rc=%d\n",
681 dev_err(wled->dev, "No valid WLED sinks found\n");
682 wled->disabled_by_short = true;
687 dev_warn(wled->dev, "%x is not a valid sink configuration - using %x instead\n",
693 rc = regmap_write(wled->regmap,
694 wled->sink_addr + WLED4_SINK_REG_CURR_SINK,
697 dev_err(wled->dev, "Failed to reconfigure the default sink rc=%d\n",
703 if (wled->version == 4) {
704 for (i = 0; i < wled->cfg.num_strings; i++) {
705 j = wled->cfg.enabled_strings[i];
713 rc = regmap_write(wled->regmap, wled->sink_addr +
716 dev_err(wled->dev, "Failed to configure MODULATOR_EN rc=%d\n",
724 rc = wled->wled_cabc_config(wled, true);
729 rc = regmap_write(wled->regmap,
730 wled->ctrl_addr + WLED3_CTRL_REG_FEEDBACK_CONTROL, 0);
732 dev_err(wled->dev, "Failed to restore feedback setting rc=%d\n",
738 rc = wled4_set_brightness(wled, wled->brightness);
740 dev_err(wled->dev, "Failed to set brightness after auto detection rc=%d\n",
745 rc = regmap_update_bits(wled->regmap,
746 wled->ctrl_addr + WLED3_CTRL_REG_MOD_EN,
750 dev_err(wled->dev, "Failed to enable WLED module rc=%d\n", rc);
761 static bool wled4_auto_detection_required(struct wled *wled)
765 if (!wled->cfg.auto_detection_enabled)
773 if (!wled->auto_detection_ovp_count) {
774 wled->start_ovp_fault_time = ktime_get();
775 wled->auto_detection_ovp_count++;
778 wled->start_ovp_fault_time);
780 wled->auto_detection_ovp_count = 0;
782 wled->auto_detection_ovp_count++;
784 if (wled->auto_detection_ovp_count >=
786 wled->auto_detection_ovp_count = 0;
794 static bool wled5_auto_detection_required(struct wled *wled)
796 if (!wled->cfg.auto_detection_enabled)
811 static int wled_auto_detection_at_init(struct wled *wled)
816 if (!wled->cfg.auto_detection_enabled)
819 rc = wled_ovp_fault_status(wled, &fault_set);
821 dev_err(wled->dev, "Error in getting OVP fault_sts, rc=%d\n",
827 mutex_lock(&wled->lock);
828 wled_auto_string_detection(wled);
829 mutex_unlock(&wled->lock);
837 struct wled *wled = _wled;
841 rc = regmap_read(wled->regmap,
842 wled->ctrl_addr + WLED3_CTRL_REG_INT_RT_STS, &int_sts);
844 dev_err(wled->dev, "Error in reading WLED3_INT_RT_STS rc=%d\n",
849 rc = regmap_read(wled->regmap, wled->ctrl_addr +
852 dev_err(wled->dev, "Error in reading WLED_FAULT_STATUS rc=%d\n",
859 dev_dbg(wled->dev, "WLED OVP fault detected, int_sts=%x fault_sts= %x\n",
863 if (wled->wled_auto_detection_required(wled)) {
864 mutex_lock(&wled->lock);
865 wled_auto_string_detection(wled);
866 mutex_unlock(&wled->lock);
873 static int wled3_setup(struct wled *wled)
879 rc = regmap_update_bits(wled->regmap,
880 wled->ctrl_addr + WLED3_CTRL_REG_OVP,
881 WLED3_CTRL_REG_OVP_MASK, wled->cfg.ovp);
885 rc = regmap_update_bits(wled->regmap,
886 wled->ctrl_addr + WLED3_CTRL_REG_ILIMIT,
888 wled->cfg.boost_i_limit);
892 rc = regmap_update_bits(wled->regmap,
893 wled->ctrl_addr + WLED3_CTRL_REG_FREQ,
895 wled->cfg.switch_freq);
899 for (i = 0; i < wled->cfg.num_strings; ++i) {
900 j = wled->cfg.enabled_strings[i];
901 addr = wled->ctrl_addr + WLED3_SINK_REG_STR_MOD_EN(j);
902 rc = regmap_update_bits(wled->regmap, addr,
908 if (wled->cfg.ext_gen) {
909 addr = wled->ctrl_addr + WLED3_SINK_REG_STR_MOD_SRC(j);
910 rc = regmap_update_bits(wled->regmap, addr,
917 addr = wled->ctrl_addr + WLED3_SINK_REG_STR_FULL_SCALE_CURR(j);
918 rc = regmap_update_bits(wled->regmap, addr,
920 wled->cfg.string_i_limit);
924 addr = wled->ctrl_addr + WLED3_SINK_REG_STR_CABC(j);
925 rc = regmap_update_bits(wled->regmap, addr,
927 wled->cfg.cabc ?
935 rc = regmap_update_bits(wled->regmap,
936 wled->ctrl_addr + WLED3_SINK_REG_CURR_SINK,
956 static int wled4_setup(struct wled *wled)
963 rc = regmap_update_bits(wled->regmap,
964 wled->ctrl_addr + WLED3_CTRL_REG_OVP,
965 WLED3_CTRL_REG_OVP_MASK, wled->cfg.ovp);
969 rc = regmap_update_bits(wled->regmap,
970 wled->ctrl_addr + WLED3_CTRL_REG_ILIMIT,
972 wled->cfg.boost_i_limit);
976 rc = regmap_update_bits(wled->regmap,
977 wled->ctrl_addr + WLED3_CTRL_REG_FREQ,
979 wled->cfg.switch_freq);
983 if (wled->cfg.external_pfet) {
985 rc = regmap_write(wled->regmap, wled->ctrl_addr +
991 rc = regmap_write(wled->regmap,
992 wled->ctrl_addr + WLED4_CTRL_REG_TEST1,
998 rc = regmap_read(wled->regmap, wled->sink_addr +
1003 for (i = 0; i < wled->cfg.num_strings; i++) {
1004 j = wled->cfg.enabled_strings[i];
1010 rc = wled_auto_detection_at_init(wled);
1014 rc = regmap_update_bits(wled->regmap,
1015 wled->sink_addr + WLED4_SINK_REG_CURR_SINK,
1020 rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
1027 for (i = 0; i < wled->cfg.num_strings; i++) {
1028 j = wled->cfg.enabled_strings[i];
1030 addr = wled->sink_addr +
1032 rc = regmap_update_bits(wled->regmap, addr,
1038 addr = wled->sink_addr +
1040 rc = regmap_update_bits(wled->regmap, addr,
1042 wled->cfg.string_i_limit);
1047 rc = wled4_cabc_config(wled, wled->cfg.cabc);
1051 rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
1058 rc = regmap_update_bits(wled->regmap,
1059 wled->sink_addr + WLED4_SINK_REG_CURR_SINK,
1064 rc = wled->wled_sync_toggle(wled);
1066 dev_err(wled->dev, "Failed to toggle sync reg rc:%d\n", rc);
1070 rc = wled_auto_detection_at_init(wled);
1087 static int wled5_setup(struct wled *wled)
1094 rc = regmap_update_bits(wled->regmap,
1095 wled->ctrl_addr + WLED3_CTRL_REG_OVP,
1096 WLED5_CTRL_REG_OVP_MASK, wled->cfg.ovp);
1100 rc = regmap_update_bits(wled->regmap,
1101 wled->ctrl_addr + WLED3_CTRL_REG_ILIMIT,
1103 wled->cfg.boost_i_limit);
1107 rc = regmap_update_bits(wled->regmap,
1108 wled->ctrl_addr + WLED3_CTRL_REG_FREQ,
1110 wled->cfg.switch_freq);
1115 for (i = 0; i < wled->cfg.num_strings; ++i) {
1116 j = wled->cfg.enabled_strings[i];
1117 addr = wled->sink_addr +
1119 rc = regmap_update_bits(wled->regmap, addr,
1121 wled->cfg.string_i_limit);
1125 addr = wled->sink_addr + WLED5_SINK_REG_STR_SRC_SEL(j);
1126 rc = regmap_update_bits(wled->regmap, addr,
1128 wled->cfg.mod_sel == MOD_A ?
1136 rc = wled5_cabc_config(wled, wled->cfg.cabc_sel ? true : false);
1141 addr = wled->sink_addr + WLED5_SINK_REG_MOD_A_EN;
1142 val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_MOD_EN_MASK : 0;
1143 rc = regmap_update_bits(wled->regmap, addr,
1148 addr = wled->sink_addr + WLED5_SINK_REG_MOD_B_EN;
1149 val = (wled->cfg.mod_sel == MOD_B) ? WLED5_SINK_REG_MOD_EN_MASK : 0;
1150 rc = regmap_update_bits(wled->regmap, addr,
1155 offset = (wled->cfg.mod_sel == MOD_A) ?
1159 addr = wled->sink_addr + offset;
1160 val = (wled->max_brightness == WLED5_SINK_REG_BRIGHT_MAX_15B) ?
1163 rc = regmap_write(wled->regmap, addr, val);
1167 rc = regmap_update_bits(wled->regmap,
1168 wled->sink_addr + WLED4_SINK_REG_CURR_SINK,
1174 rc = wled->wled_sync_toggle(wled);
1180 rc = wled_auto_detection_at_init(wled);
1305 static int wled_configure(struct wled *wled)
1307 struct wled_config *cfg = &wled->cfg;
1308 struct device *dev = wled->dev;
1403 dev_err(wled->dev, "invalid IO resources\n");
1406 wled->ctrl_addr = be32_to_cpu(*prop_addr);
1408 rc = of_property_read_string(dev->of_node, "label", &wled->name);
1410 wled->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFn", dev->of_node);
1412 switch (wled->version) {
1417 wled->wled_set_brightness = wled3_set_brightness;
1418 wled->wled_sync_toggle = wled3_sync_toggle;
1419 wled->max_string_count = 3;
1420 wled->sink_addr = wled->ctrl_addr;
1427 wled->wled_set_brightness = wled4_set_brightness;
1428 wled->wled_sync_toggle = wled3_sync_toggle;
1429 wled->wled_cabc_config = wled4_cabc_config;
1430 wled->wled_ovp_delay = wled4_ovp_delay;
1431 wled->wled_auto_detection_required =
1433 wled->max_string_count = 4;
1437 dev_err(wled->dev, "invalid IO resources\n");
1440 wled->sink_addr = be32_to_cpu(*prop_addr);
1447 wled->wled_set_brightness = wled5_set_brightness;
1448 wled->wled_sync_toggle = wled3_sync_toggle;
1449 wled->wled_cabc_config = wled5_cabc_config;
1450 wled->wled_ovp_delay = wled5_ovp_delay;
1451 wled->wled_auto_detection_required =
1453 wled->max_string_count = 4;
1457 dev_err(wled->dev, "invalid IO resources\n");
1460 wled->sink_addr = be32_to_cpu(*prop_addr);
1464 dev_err(wled->dev, "Invalid WLED version\n");
1503 if (string_len > wled->max_string_count) {
1505 wled->max_string_count);
1511 wled->cfg.enabled_strings,
1520 if (wled->cfg.enabled_strings[i] >= wled->max_string_count) {
1523 wled->cfg.enabled_strings[i], i);
1533 if (val < 1 || val > wled->max_string_count) {
1535 wled->max_string_count);
1554 static int wled_configure_short_irq(struct wled *wled,
1559 if (!wled->has_short_detect)
1562 rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
1569 wled->short_irq = platform_get_irq_byname(pdev, "short");
1570 if (wled->short_irq < 0) {
1575 rc = devm_request_threaded_irq(wled->dev, wled->short_irq,
1578 "wled_short_irq", wled);
1580 dev_err(wled->dev, "Unable to request short_irq (err:%d)\n",
1586 static int wled_configure_ovp_irq(struct wled *wled,
1592 wled->ovp_irq = platform_get_irq_byname(pdev, "ovp");
1593 if (wled->ovp_irq < 0) {
1598 rc = devm_request_threaded_irq(wled->dev, wled->ovp_irq, NULL,
1600 "wled_ovp_irq", wled);
1602 dev_err(wled->dev, "Unable to request ovp_irq (err:%d)\n",
1604 wled->ovp_irq = 0;
1608 rc = regmap_read(wled->regmap, wled->ctrl_addr +
1615 disable_irq(wled->ovp_irq);
1628 struct wled *wled;
1639 wled = devm_kzalloc(&pdev->dev, sizeof(*wled), GFP_KERNEL);
1640 if (!wled)
1643 wled->regmap = regmap;
1644 wled->dev = &pdev->dev;
1646 wled->version = (uintptr_t)of_device_get_match_data(&pdev->dev);
1647 if (!wled->version) {
1652 mutex_init(&wled->lock);
1653 rc = wled_configure(wled);
1659 wled->max_brightness = val;
1661 switch (wled->version) {
1663 wled->cfg.auto_detection_enabled = false;
1664 rc = wled3_setup(wled);
1672 wled->has_short_detect = true;
1673 rc = wled4_setup(wled);
1681 wled->has_short_detect = true;
1682 if (wled->cfg.cabc_sel)
1683 wled->max_brightness = WLED5_SINK_REG_BRIGHT_MAX_12B;
1685 rc = wled5_setup(wled);
1693 dev_err(wled->dev, "Invalid WLED version\n");
1697 INIT_DELAYED_WORK(&wled->ovp_work, wled_ovp_work);
1699 rc = wled_configure_short_irq(wled, pdev);
1703 rc = wled_configure_ovp_irq(wled, pdev);
1713 props.max_brightness = wled->max_brightness;
1714 bl = devm_backlight_device_register(&pdev->dev, wled->name,
1715 &pdev->dev, wled,
1722 struct wled *wled = platform_get_drvdata(pdev);
1724 mutex_destroy(&wled->lock);
1725 cancel_delayed_work_sync(&wled->ovp_work);
1726 disable_irq(wled->short_irq);
1727 disable_irq(wled->ovp_irq);
1731 { .compatible = "qcom,pm8941-wled", .data = (void *)3 },
1732 { .compatible = "qcom,pmi8950-wled", .data = (void *)4 },
1733 { .compatible = "qcom,pmi8994-wled", .data = (void *)4 },
1734 { .compatible = "qcom,pmi8998-wled", .data = (void *)4 },
1735 { .compatible = "qcom,pm660l-wled", .data = (void *)4 },
1736 { .compatible = "qcom,pm6150l-wled", .data = (void *)5 },
1737 { .compatible = "qcom,pm8150l-wled", .data = (void *)5 },
1746 .name = "qcom,wled",