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 val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_SYNC_MOD_A_BIT :
357 rc = regmap_update_bits(wled->regmap,
358 wled->sink_addr + WLED5_SINK_REG_MOD_SYNC_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);
1086 static int wled5_setup(struct wled *wled)
1093 rc = regmap_update_bits(wled->regmap,
1094 wled->ctrl_addr + WLED3_CTRL_REG_OVP,
1095 WLED5_CTRL_REG_OVP_MASK, wled->cfg.ovp);
1099 rc = regmap_update_bits(wled->regmap,
1100 wled->ctrl_addr + WLED3_CTRL_REG_ILIMIT,
1102 wled->cfg.boost_i_limit);
1106 rc = regmap_update_bits(wled->regmap,
1107 wled->ctrl_addr + WLED3_CTRL_REG_FREQ,
1109 wled->cfg.switch_freq);
1114 for (i = 0; i < wled->cfg.num_strings; ++i) {
1115 j = wled->cfg.enabled_strings[i];
1116 addr = wled->sink_addr +
1118 rc = regmap_update_bits(wled->regmap, addr,
1120 wled->cfg.string_i_limit);
1124 addr = wled->sink_addr + WLED5_SINK_REG_STR_SRC_SEL(j);
1125 rc = regmap_update_bits(wled->regmap, addr,
1127 wled->cfg.mod_sel == MOD_A ?
1135 rc = wled5_cabc_config(wled, wled->cfg.cabc_sel ? true : false);
1140 addr = wled->sink_addr + WLED5_SINK_REG_MOD_A_EN;
1141 val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_MOD_EN_MASK : 0;
1142 rc = regmap_update_bits(wled->regmap, addr,
1147 addr = wled->sink_addr + WLED5_SINK_REG_MOD_B_EN;
1148 val = (wled->cfg.mod_sel == MOD_B) ? WLED5_SINK_REG_MOD_EN_MASK : 0;
1149 rc = regmap_update_bits(wled->regmap, addr,
1154 offset = (wled->cfg.mod_sel == MOD_A) ?
1158 addr = wled->sink_addr + offset;
1159 val = (wled->max_brightness == WLED5_SINK_REG_BRIGHT_MAX_15B) ?
1162 rc = regmap_write(wled->regmap, addr, val);
1166 rc = regmap_update_bits(wled->regmap,
1167 wled->sink_addr + WLED4_SINK_REG_CURR_SINK,
1173 rc = wled->wled_sync_toggle(wled);
1179 rc = wled_auto_detection_at_init(wled);
1303 static int wled_configure(struct wled *wled)
1305 struct wled_config *cfg = &wled->cfg;
1306 struct device *dev = wled->dev;
1401 dev_err(wled->dev, "invalid IO resources\n");
1404 wled->ctrl_addr = be32_to_cpu(*prop_addr);
1406 rc = of_property_read_string(dev->of_node, "label", &wled->name);
1408 wled->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFn", dev->of_node);
1410 switch (wled->version) {
1415 wled->wled_set_brightness = wled3_set_brightness;
1416 wled->wled_sync_toggle = wled3_sync_toggle;
1417 wled->max_string_count = 3;
1418 wled->sink_addr = wled->ctrl_addr;
1425 wled->wled_set_brightness = wled4_set_brightness;
1426 wled->wled_sync_toggle = wled3_sync_toggle;
1427 wled->wled_cabc_config = wled4_cabc_config;
1428 wled->wled_ovp_delay = wled4_ovp_delay;
1429 wled->wled_auto_detection_required =
1431 wled->max_string_count = 4;
1435 dev_err(wled->dev, "invalid IO resources\n");
1438 wled->sink_addr = be32_to_cpu(*prop_addr);
1445 wled->wled_set_brightness = wled5_set_brightness;
1446 wled->wled_sync_toggle = wled3_sync_toggle;
1447 wled->wled_cabc_config = wled5_cabc_config;
1448 wled->wled_ovp_delay = wled5_ovp_delay;
1449 wled->wled_auto_detection_required =
1451 wled->max_string_count = 4;
1455 dev_err(wled->dev, "invalid IO resources\n");
1458 wled->sink_addr = be32_to_cpu(*prop_addr);
1462 dev_err(wled->dev, "Invalid WLED version\n");
1501 if (string_len > wled->max_string_count) {
1503 wled->max_string_count);
1509 wled->cfg.enabled_strings,
1518 if (wled->cfg.enabled_strings[i] >= wled->max_string_count) {
1521 wled->cfg.enabled_strings[i], i);
1531 if (val < 1 || val > wled->max_string_count) {
1533 wled->max_string_count);
1552 static int wled_configure_short_irq(struct wled *wled,
1557 if (!wled->has_short_detect)
1560 rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
1567 wled->short_irq = platform_get_irq_byname(pdev, "short");
1568 if (wled->short_irq < 0) {
1573 rc = devm_request_threaded_irq(wled->dev, wled->short_irq,
1576 "wled_short_irq", wled);
1578 dev_err(wled->dev, "Unable to request short_irq (err:%d)\n",
1584 static int wled_configure_ovp_irq(struct wled *wled,
1590 wled->ovp_irq = platform_get_irq_byname(pdev, "ovp");
1591 if (wled->ovp_irq < 0) {
1596 rc = devm_request_threaded_irq(wled->dev, wled->ovp_irq, NULL,
1598 "wled_ovp_irq", wled);
1600 dev_err(wled->dev, "Unable to request ovp_irq (err:%d)\n",
1602 wled->ovp_irq = 0;
1606 rc = regmap_read(wled->regmap, wled->ctrl_addr +
1613 disable_irq(wled->ovp_irq);
1626 struct wled *wled;
1637 wled = devm_kzalloc(&pdev->dev, sizeof(*wled), GFP_KERNEL);
1638 if (!wled)
1641 wled->regmap = regmap;
1642 wled->dev = &pdev->dev;
1644 wled->version = (uintptr_t)of_device_get_match_data(&pdev->dev);
1645 if (!wled->version) {
1650 mutex_init(&wled->lock);
1651 rc = wled_configure(wled);
1657 wled->max_brightness = val;
1659 switch (wled->version) {
1661 wled->cfg.auto_detection_enabled = false;
1662 rc = wled3_setup(wled);
1670 wled->has_short_detect = true;
1671 rc = wled4_setup(wled);
1679 wled->has_short_detect = true;
1680 if (wled->cfg.cabc_sel)
1681 wled->max_brightness = WLED5_SINK_REG_BRIGHT_MAX_12B;
1683 rc = wled5_setup(wled);
1691 dev_err(wled->dev, "Invalid WLED version\n");
1695 INIT_DELAYED_WORK(&wled->ovp_work, wled_ovp_work);
1697 rc = wled_configure_short_irq(wled, pdev);
1701 rc = wled_configure_ovp_irq(wled, pdev);
1711 props.max_brightness = wled->max_brightness;
1712 bl = devm_backlight_device_register(&pdev->dev, wled->name,
1713 &pdev->dev, wled,
1720 struct wled *wled = dev_get_drvdata(&pdev->dev);
1722 mutex_destroy(&wled->lock);
1723 cancel_delayed_work_sync(&wled->ovp_work);
1724 disable_irq(wled->short_irq);
1725 disable_irq(wled->ovp_irq);
1731 { .compatible = "qcom,pm8941-wled", .data = (void *)3 },
1732 { .compatible = "qcom,pmi8998-wled", .data = (void *)4 },
1733 { .compatible = "qcom,pm660l-wled", .data = (void *)4 },
1734 { .compatible = "qcom,pm8150l-wled", .data = (void *)5 },
1743 .name = "qcom,wled",