Lines Matching refs:ddata
140 static bool cpcap_usb_vbus_valid(struct cpcap_phy_ddata *ddata)
144 error = iio_read_channel_processed(ddata->vbus, &value);
148 dev_err(ddata->dev, "error reading VBUS: %i\n", error);
176 static int cpcap_phy_get_ints_state(struct cpcap_phy_ddata *ddata,
181 error = regmap_read(ddata->reg, CPCAP_REG_INTS1, &val);
189 error = regmap_read(ddata->reg, CPCAP_REG_INTS2, &val);
198 error = regmap_read(ddata->reg, CPCAP_REG_INTS4, &val);
208 static int cpcap_usb_set_uart_mode(struct cpcap_phy_ddata *ddata);
209 static int cpcap_usb_set_usb_mode(struct cpcap_phy_ddata *ddata);
211 static void cpcap_usb_try_musb_mailbox(struct cpcap_phy_ddata *ddata,
220 dev_dbg(ddata->dev, "%s: musb_mailbox failed: %i\n",
226 struct cpcap_phy_ddata *ddata;
231 ddata = container_of(work, struct cpcap_phy_ddata, detect_work.work);
233 error = cpcap_phy_get_ints_state(ddata, &s);
237 vbus = cpcap_usb_vbus_valid(ddata);
240 if (s.id_ground && ddata->vbus_provider) {
241 dev_dbg(ddata->dev, "still in USB A-host mode, kicking VBUS\n");
243 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
245 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
255 if (vbus && s.id_ground && ddata->docked) {
256 dev_dbg(ddata->dev, "still docked as A-host, signal ID down\n");
258 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
264 if (vbus && s.id_ground && !ddata->vbus_provider) {
265 dev_dbg(ddata->dev, "connected to a dock\n");
267 ddata->docked = true;
269 error = cpcap_usb_set_usb_mode(ddata);
273 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
280 schedule_delayed_work(&ddata->detect_work,
286 if (s.id_ground && !ddata->docked) {
287 dev_dbg(ddata->dev, "id ground, USB host mode\n");
289 ddata->vbus_provider = true;
291 error = cpcap_usb_set_usb_mode(ddata);
295 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
297 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
307 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
313 vbus = cpcap_usb_vbus_valid(ddata);
317 dev_dbg(ddata->dev, "connected to USB host\n");
318 error = cpcap_usb_set_usb_mode(ddata);
321 cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_VALID);
326 ddata->vbus_provider = false;
327 ddata->docked = false;
328 cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_OFF);
331 error = cpcap_usb_set_uart_mode(ddata);
335 dev_dbg(ddata->dev, "set UART mode\n");
340 dev_err(ddata->dev, "error setting cable state: %i\n", error);
345 struct cpcap_phy_ddata *ddata = data;
347 if (!atomic_read(&ddata->active))
350 schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
356 struct cpcap_phy_ddata *ddata,
365 error = devm_request_threaded_irq(ddata->dev, irq, NULL,
369 name, ddata);
371 dev_err(ddata->dev, "could not get irq %s: %i\n",
392 struct cpcap_phy_ddata *ddata)
397 error = cpcap_usb_init_irq(pdev, ddata, cpcap_phy_irqs[i]);
411 static int cpcap_usb_gpio_set_mode(struct cpcap_phy_ddata *ddata,
414 if (!ddata->gpio[0] || !ddata->gpio[1])
417 gpiod_set_value(ddata->gpio[0], mode & 1);
418 gpiod_set_value(ddata->gpio[1], mode >> 1);
423 static int cpcap_usb_set_uart_mode(struct cpcap_phy_ddata *ddata)
428 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_UNKNOWN_DISABLED);
432 if (ddata->pins_uart) {
433 error = pinctrl_select_state(ddata->pins, ddata->pins_uart);
438 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC1,
444 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC2,
450 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3, 0x7fff,
456 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_DM_DP);
463 dev_err(ddata->dev, "%s failed with %i\n", __func__, error);
468 static int cpcap_usb_set_usb_mode(struct cpcap_phy_ddata *ddata)
473 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_UNKNOWN_DISABLED);
477 if (ddata->pins_utmi) {
478 error = pinctrl_select_state(ddata->pins, ddata->pins_utmi);
480 dev_err(ddata->dev, "could not set usb mode: %i\n",
487 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC1,
492 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
501 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC2,
508 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_OTG_DM_DP);
515 dev_err(ddata->dev, "%s failed with %i\n", __func__, error);
520 static int cpcap_usb_init_optional_pins(struct cpcap_phy_ddata *ddata)
522 ddata->pins = devm_pinctrl_get(ddata->dev);
523 if (IS_ERR(ddata->pins)) {
524 dev_info(ddata->dev, "default pins not configured: %ld\n",
525 PTR_ERR(ddata->pins));
526 ddata->pins = NULL;
531 ddata->pins_ulpi = pinctrl_lookup_state(ddata->pins, "ulpi");
532 if (IS_ERR(ddata->pins_ulpi)) {
533 dev_info(ddata->dev, "ulpi pins not configured\n");
534 ddata->pins_ulpi = NULL;
537 ddata->pins_utmi = pinctrl_lookup_state(ddata->pins, "utmi");
538 if (IS_ERR(ddata->pins_utmi)) {
539 dev_info(ddata->dev, "utmi pins not configured\n");
540 ddata->pins_utmi = NULL;
543 ddata->pins_uart = pinctrl_lookup_state(ddata->pins, "uart");
544 if (IS_ERR(ddata->pins_uart)) {
545 dev_info(ddata->dev, "uart pins not configured\n");
546 ddata->pins_uart = NULL;
549 if (ddata->pins_uart)
550 return pinctrl_select_state(ddata->pins, ddata->pins_uart);
555 static void cpcap_usb_init_optional_gpios(struct cpcap_phy_ddata *ddata)
560 ddata->gpio[i] = devm_gpiod_get_index(ddata->dev, "mode",
562 if (IS_ERR(ddata->gpio[i])) {
563 dev_info(ddata->dev, "no mode change GPIO%i: %li\n",
564 i, PTR_ERR(ddata->gpio[i]));
565 ddata->gpio[i] = NULL;
570 static int cpcap_usb_init_iio(struct cpcap_phy_ddata *ddata)
575 ddata->vbus = devm_iio_channel_get(ddata->dev, "vbus");
576 if (IS_ERR(ddata->vbus)) {
577 error = PTR_ERR(ddata->vbus);
581 if (!ddata->vbus->indio_dev) {
586 error = iio_get_channel_type(ddata->vbus, &type);
598 dev_err(ddata->dev, "could not initialize VBUS or ID IIO: %i\n",
619 struct cpcap_phy_ddata *ddata;
631 ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
632 if (!ddata)
635 ddata->reg = dev_get_regmap(pdev->dev.parent, NULL);
636 if (!ddata->reg)
643 ddata->dev = &pdev->dev;
644 ddata->phy.dev = ddata->dev;
645 ddata->phy.label = "cpcap_usb_phy";
646 ddata->phy.otg = otg;
647 ddata->phy.type = USB_PHY_TYPE_USB2;
650 otg->usb_phy = &ddata->phy;
651 INIT_DELAYED_WORK(&ddata->detect_work, cpcap_usb_detect);
652 platform_set_drvdata(pdev, ddata);
654 ddata->vusb = devm_regulator_get(&pdev->dev, "vusb");
655 if (IS_ERR(ddata->vusb))
656 return PTR_ERR(ddata->vusb);
658 error = regulator_enable(ddata->vusb);
662 generic_phy = devm_phy_create(ddata->dev, NULL, &ops);
668 phy_set_drvdata(generic_phy, ddata);
670 phy_provider = devm_of_phy_provider_register(ddata->dev,
677 error = cpcap_usb_init_optional_pins(ddata);
681 cpcap_usb_init_optional_gpios(ddata);
683 error = cpcap_usb_init_iio(ddata);
687 error = cpcap_usb_init_interrupts(pdev, ddata);
691 usb_add_phy_dev(&ddata->phy);
692 atomic_set(&ddata->active, 1);
693 schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
698 regulator_disable(ddata->vusb);
705 struct cpcap_phy_ddata *ddata = platform_get_drvdata(pdev);
708 atomic_set(&ddata->active, 0);
709 error = cpcap_usb_set_uart_mode(ddata);
711 dev_err(ddata->dev, "could not set UART mode\n");
713 cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_OFF);
715 usb_remove_phy(&ddata->phy);
716 cancel_delayed_work_sync(&ddata->detect_work);
717 regulator_disable(ddata->vusb);