Lines Matching refs:ddata
132 static bool cpcap_usb_vbus_valid(struct cpcap_phy_ddata *ddata)
136 error = iio_read_channel_processed(ddata->vbus, &value);
140 dev_err(ddata->dev, "error reading VBUS: %i\n", error);
168 static int cpcap_phy_get_ints_state(struct cpcap_phy_ddata *ddata,
173 error = regmap_read(ddata->reg, CPCAP_REG_INTS1, &val);
181 error = regmap_read(ddata->reg, CPCAP_REG_INTS2, &val);
190 error = regmap_read(ddata->reg, CPCAP_REG_INTS4, &val);
200 static int cpcap_usb_set_uart_mode(struct cpcap_phy_ddata *ddata);
201 static int cpcap_usb_set_usb_mode(struct cpcap_phy_ddata *ddata);
203 static void cpcap_usb_try_musb_mailbox(struct cpcap_phy_ddata *ddata,
212 dev_dbg(ddata->dev, "%s: musb_mailbox failed: %i\n",
218 struct cpcap_phy_ddata *ddata;
223 ddata = container_of(work, struct cpcap_phy_ddata, detect_work.work);
225 error = cpcap_phy_get_ints_state(ddata, &s);
229 vbus = cpcap_usb_vbus_valid(ddata);
232 if (s.id_ground && ddata->vbus_provider) {
233 dev_dbg(ddata->dev, "still in USB A-host mode, kicking VBUS\n");
235 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
237 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
247 if (vbus && s.id_ground && ddata->docked) {
248 dev_dbg(ddata->dev, "still docked as A-host, signal ID down\n");
250 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
256 if (vbus && s.id_ground && !ddata->vbus_provider) {
257 dev_dbg(ddata->dev, "connected to a dock\n");
259 ddata->docked = true;
261 error = cpcap_usb_set_usb_mode(ddata);
265 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
272 schedule_delayed_work(&ddata->detect_work,
278 if (s.id_ground && !ddata->docked) {
279 dev_dbg(ddata->dev, "id ground, USB host mode\n");
281 ddata->vbus_provider = true;
283 error = cpcap_usb_set_usb_mode(ddata);
287 cpcap_usb_try_musb_mailbox(ddata, MUSB_ID_GROUND);
289 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
299 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
305 vbus = cpcap_usb_vbus_valid(ddata);
309 dev_dbg(ddata->dev, "connected to USB host\n");
310 error = cpcap_usb_set_usb_mode(ddata);
313 cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_VALID);
318 ddata->vbus_provider = false;
319 ddata->docked = false;
320 cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_OFF);
323 error = cpcap_usb_set_uart_mode(ddata);
327 dev_dbg(ddata->dev, "set UART mode\n");
332 dev_err(ddata->dev, "error setting cable state: %i\n", error);
337 struct cpcap_phy_ddata *ddata = data;
339 if (!atomic_read(&ddata->active))
342 schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
348 struct cpcap_phy_ddata *ddata,
357 error = devm_request_threaded_irq(ddata->dev, irq, NULL,
361 name, ddata);
363 dev_err(ddata->dev, "could not get irq %s: %i\n",
384 struct cpcap_phy_ddata *ddata)
389 error = cpcap_usb_init_irq(pdev, ddata, cpcap_phy_irqs[i]);
403 static int cpcap_usb_gpio_set_mode(struct cpcap_phy_ddata *ddata,
406 if (!ddata->gpio[0] || !ddata->gpio[1])
409 gpiod_set_value(ddata->gpio[0], mode & 1);
410 gpiod_set_value(ddata->gpio[1], mode >> 1);
415 static int cpcap_usb_set_uart_mode(struct cpcap_phy_ddata *ddata)
420 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_UNKNOWN_DISABLED);
424 if (ddata->pins_uart) {
425 error = pinctrl_select_state(ddata->pins, ddata->pins_uart);
430 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC1,
436 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC2,
442 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3, 0x7fff,
448 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_DM_DP);
455 dev_err(ddata->dev, "%s failed with %i\n", __func__, error);
460 static int cpcap_usb_set_usb_mode(struct cpcap_phy_ddata *ddata)
465 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_UNKNOWN_DISABLED);
469 if (ddata->pins_utmi) {
470 error = pinctrl_select_state(ddata->pins, ddata->pins_utmi);
472 dev_err(ddata->dev, "could not set usb mode: %i\n",
479 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC1,
484 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
493 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC2,
500 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_OTG_DM_DP);
507 dev_err(ddata->dev, "%s failed with %i\n", __func__, error);
512 static int cpcap_usb_init_optional_pins(struct cpcap_phy_ddata *ddata)
514 ddata->pins = devm_pinctrl_get(ddata->dev);
515 if (IS_ERR(ddata->pins)) {
516 dev_info(ddata->dev, "default pins not configured: %ld\n",
517 PTR_ERR(ddata->pins));
518 ddata->pins = NULL;
523 ddata->pins_ulpi = pinctrl_lookup_state(ddata->pins, "ulpi");
524 if (IS_ERR(ddata->pins_ulpi)) {
525 dev_info(ddata->dev, "ulpi pins not configured\n");
526 ddata->pins_ulpi = NULL;
529 ddata->pins_utmi = pinctrl_lookup_state(ddata->pins, "utmi");
530 if (IS_ERR(ddata->pins_utmi)) {
531 dev_info(ddata->dev, "utmi pins not configured\n");
532 ddata->pins_utmi = NULL;
535 ddata->pins_uart = pinctrl_lookup_state(ddata->pins, "uart");
536 if (IS_ERR(ddata->pins_uart)) {
537 dev_info(ddata->dev, "uart pins not configured\n");
538 ddata->pins_uart = NULL;
541 if (ddata->pins_uart)
542 return pinctrl_select_state(ddata->pins, ddata->pins_uart);
547 static void cpcap_usb_init_optional_gpios(struct cpcap_phy_ddata *ddata)
552 ddata->gpio[i] = devm_gpiod_get_index(ddata->dev, "mode",
554 if (IS_ERR(ddata->gpio[i])) {
555 dev_info(ddata->dev, "no mode change GPIO%i: %li\n",
556 i, PTR_ERR(ddata->gpio[i]));
557 ddata->gpio[i] = NULL;
562 static int cpcap_usb_init_iio(struct cpcap_phy_ddata *ddata)
567 ddata->vbus = devm_iio_channel_get(ddata->dev, "vbus");
568 if (IS_ERR(ddata->vbus)) {
569 error = PTR_ERR(ddata->vbus);
573 if (!ddata->vbus->indio_dev) {
578 error = iio_get_channel_type(ddata->vbus, &type);
590 dev_err(ddata->dev, "could not initialize VBUS or ID IIO: %i\n",
611 struct cpcap_phy_ddata *ddata;
623 ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
624 if (!ddata)
627 ddata->reg = dev_get_regmap(pdev->dev.parent, NULL);
628 if (!ddata->reg)
635 ddata->dev = &pdev->dev;
636 ddata->phy.dev = ddata->dev;
637 ddata->phy.label = "cpcap_usb_phy";
638 ddata->phy.otg = otg;
639 ddata->phy.type = USB_PHY_TYPE_USB2;
642 otg->usb_phy = &ddata->phy;
643 INIT_DELAYED_WORK(&ddata->detect_work, cpcap_usb_detect);
644 platform_set_drvdata(pdev, ddata);
646 ddata->vusb = devm_regulator_get(&pdev->dev, "vusb");
647 if (IS_ERR(ddata->vusb))
648 return PTR_ERR(ddata->vusb);
650 error = regulator_enable(ddata->vusb);
654 generic_phy = devm_phy_create(ddata->dev, NULL, &ops);
660 phy_set_drvdata(generic_phy, ddata);
662 phy_provider = devm_of_phy_provider_register(ddata->dev,
669 error = cpcap_usb_init_optional_pins(ddata);
673 cpcap_usb_init_optional_gpios(ddata);
675 error = cpcap_usb_init_iio(ddata);
679 error = cpcap_usb_init_interrupts(pdev, ddata);
683 usb_add_phy_dev(&ddata->phy);
684 atomic_set(&ddata->active, 1);
685 schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
690 regulator_disable(ddata->vusb);
697 struct cpcap_phy_ddata *ddata = platform_get_drvdata(pdev);
700 atomic_set(&ddata->active, 0);
701 error = cpcap_usb_set_uart_mode(ddata);
703 dev_err(ddata->dev, "could not set UART mode\n");
705 cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_OFF);
707 usb_remove_phy(&ddata->phy);
708 cancel_delayed_work_sync(&ddata->detect_work);
709 regulator_disable(ddata->vusb);