Lines Matching refs:hub
242 static int usb251x_check_gpio_chip(struct usb251xb *hub)
244 struct gpio_chip *gc = gpiod_to_chip(hub->gpio_reset);
245 struct i2c_adapter *adap = hub->i2c->adapter;
248 if (!hub->gpio_reset)
256 dev_err(hub->dev, "Reset GPIO chip is at the same i2c-bus\n");
263 static int usb251x_check_gpio_chip(struct usb251xb *hub)
269 static void usb251xb_reset(struct usb251xb *hub)
271 if (!hub->gpio_reset)
274 i2c_lock_bus(hub->i2c->adapter, I2C_LOCK_SEGMENT);
276 gpiod_set_value_cansleep(hub->gpio_reset, 1);
278 gpiod_set_value_cansleep(hub->gpio_reset, 0);
280 /* wait for hub recovery/stabilization */
283 i2c_unlock_bus(hub->i2c->adapter, I2C_LOCK_SEGMENT);
286 static int usb251xb_connect(struct usb251xb *hub)
288 struct device *dev = hub->dev;
294 if (hub->skip_config) {
295 dev_info(dev, "Skip hub configuration, only attach.\n");
299 usb251xb_reset(hub);
301 err = i2c_smbus_write_i2c_block_data(hub->i2c,
304 dev_err(dev, "attaching hub failed: %d\n", err);
310 i2c_wb[USB251XB_ADDR_VENDOR_ID_MSB] = (hub->vendor_id >> 8) & 0xFF;
311 i2c_wb[USB251XB_ADDR_VENDOR_ID_LSB] = hub->vendor_id & 0xFF;
312 i2c_wb[USB251XB_ADDR_PRODUCT_ID_MSB] = (hub->product_id >> 8) & 0xFF;
313 i2c_wb[USB251XB_ADDR_PRODUCT_ID_LSB] = hub->product_id & 0xFF;
314 i2c_wb[USB251XB_ADDR_DEVICE_ID_MSB] = (hub->device_id >> 8) & 0xFF;
315 i2c_wb[USB251XB_ADDR_DEVICE_ID_LSB] = hub->device_id & 0xFF;
316 i2c_wb[USB251XB_ADDR_CONFIG_DATA_1] = hub->conf_data1;
317 i2c_wb[USB251XB_ADDR_CONFIG_DATA_2] = hub->conf_data2;
318 i2c_wb[USB251XB_ADDR_CONFIG_DATA_3] = hub->conf_data3;
319 i2c_wb[USB251XB_ADDR_NON_REMOVABLE_DEVICES] = hub->non_rem_dev;
320 i2c_wb[USB251XB_ADDR_PORT_DISABLE_SELF] = hub->port_disable_sp;
321 i2c_wb[USB251XB_ADDR_PORT_DISABLE_BUS] = hub->port_disable_bp;
322 i2c_wb[USB251XB_ADDR_MAX_POWER_SELF] = hub->max_power_sp;
323 i2c_wb[USB251XB_ADDR_MAX_POWER_BUS] = hub->max_power_bp;
324 i2c_wb[USB251XB_ADDR_MAX_CURRENT_SELF] = hub->max_current_sp;
325 i2c_wb[USB251XB_ADDR_MAX_CURRENT_BUS] = hub->max_current_bp;
326 i2c_wb[USB251XB_ADDR_POWER_ON_TIME] = hub->power_on_time;
327 i2c_wb[USB251XB_ADDR_LANGUAGE_ID_HIGH] = (hub->lang_id >> 8) & 0xFF;
328 i2c_wb[USB251XB_ADDR_LANGUAGE_ID_LOW] = hub->lang_id & 0xFF;
329 i2c_wb[USB251XB_ADDR_MANUFACTURER_STRING_LEN] = hub->manufacturer_len;
330 i2c_wb[USB251XB_ADDR_PRODUCT_STRING_LEN] = hub->product_len;
331 i2c_wb[USB251XB_ADDR_SERIAL_STRING_LEN] = hub->serial_len;
332 memcpy(&i2c_wb[USB251XB_ADDR_MANUFACTURER_STRING], hub->manufacturer,
334 memcpy(&i2c_wb[USB251XB_ADDR_SERIAL_STRING], hub->serial,
336 memcpy(&i2c_wb[USB251XB_ADDR_PRODUCT_STRING], hub->product,
338 i2c_wb[USB251XB_ADDR_BATTERY_CHARGING_ENABLE] = hub->bat_charge_en;
339 i2c_wb[USB251XB_ADDR_BOOST_UP] = hub->boost_up;
340 i2c_wb[USB251XB_ADDR_BOOST_57] = hub->boost_57;
341 i2c_wb[USB251XB_ADDR_BOOST_14] = hub->boost_14;
342 i2c_wb[USB251XB_ADDR_PORT_SWAP] = hub->port_swap;
343 i2c_wb[USB251XB_ADDR_PORT_MAP_12] = hub->port_map12;
344 i2c_wb[USB251XB_ADDR_PORT_MAP_34] = hub->port_map34;
345 i2c_wb[USB251XB_ADDR_PORT_MAP_56] = hub->port_map56;
346 i2c_wb[USB251XB_ADDR_PORT_MAP_7] = hub->port_map7;
349 usb251xb_reset(hub);
356 /* The first data byte transferred tells the hub how many data
365 err = i2c_smbus_write_i2c_block_data(hub->i2c, offset,
381 static void usb251xb_get_ports_field(struct usb251xb *hub,
385 struct device *dev = hub->dev;
398 static int usb251xb_get_ofdata(struct usb251xb *hub,
401 struct device *dev = hub->dev;
414 hub->skip_config = 1;
416 hub->skip_config = 0;
418 hub->gpio_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
419 if (PTR_ERR(hub->gpio_reset) == -EPROBE_DEFER) {
421 } else if (IS_ERR(hub->gpio_reset)) {
422 err = PTR_ERR(hub->gpio_reset);
427 if (of_property_read_u16_array(np, "vendor-id", &hub->vendor_id, 1))
428 hub->vendor_id = USB251XB_DEF_VENDOR_ID;
431 &hub->product_id, 1))
432 hub->product_id = data->product_id;
434 if (of_property_read_u16_array(np, "device-id", &hub->device_id, 1))
435 hub->device_id = USB251XB_DEF_DEVICE_ID;
437 hub->conf_data1 = USB251XB_DEF_CONFIG_DATA_1;
439 hub->conf_data1 |= BIT(7);
442 hub->conf_data1 &= ~BIT(2);
444 hub->conf_data1 &= ~BIT(1);
446 hub->conf_data1 |= BIT(1);
448 hub->conf_data1 &= ~BIT(7);
451 hub->conf_data1 |= BIT(2);
455 hub->conf_data1 |= BIT(5);
458 hub->conf_data1 |= BIT(4);
460 hub->conf_data1 &= ~BIT(4);
463 hub->conf_data1 |= BIT(3);
466 hub->conf_data1 |= BIT(0);
468 hub->conf_data1 &= ~BIT(0);
470 hub->conf_data2 = USB251XB_DEF_CONFIG_DATA_2;
472 hub->conf_data2 |= BIT(7);
477 hub->conf_data2 &= ~BIT(5);
478 hub->conf_data2 &= ~BIT(4);
481 hub->conf_data2 &= ~BIT(5);
482 hub->conf_data2 |= BIT(4);
485 hub->conf_data2 |= BIT(5);
486 hub->conf_data2 |= BIT(4);
489 hub->conf_data2 |= BIT(5);
490 hub->conf_data2 &= ~BIT(4);
495 hub->conf_data2 |= BIT(3);
497 hub->conf_data3 = USB251XB_DEF_CONFIG_DATA_3;
499 hub->conf_data3 |= BIT(3);
502 hub->conf_data3 &= ~BIT(1);
505 hub->conf_data3 |= BIT(0);
507 hub->non_rem_dev = USB251XB_DEF_NON_REMOVABLE_DEVICES;
508 usb251xb_get_ports_field(hub, "non-removable-ports", data->port_cnt,
509 true, &hub->non_rem_dev);
511 hub->port_disable_sp = USB251XB_DEF_PORT_DISABLE_SELF;
512 usb251xb_get_ports_field(hub, "sp-disabled-ports", data->port_cnt,
513 true, &hub->port_disable_sp);
515 hub->port_disable_bp = USB251XB_DEF_PORT_DISABLE_BUS;
516 usb251xb_get_ports_field(hub, "bp-disabled-ports", data->port_cnt,
517 true, &hub->port_disable_bp);
519 hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
522 hub->max_power_sp = min_t(u8, property_u32 / 2000, 50);
524 hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
527 hub->max_power_bp = min_t(u8, property_u32 / 2000, 255);
529 hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
532 hub->max_current_sp = min_t(u8, property_u32 / 2000, 50);
534 hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
537 hub->max_current_bp = min_t(u8, property_u32 / 2000, 255);
539 hub->power_on_time = USB251XB_DEF_POWER_ON_TIME;
541 hub->power_on_time = min_t(u8, property_u32 / 2, 255);
543 if (of_property_read_u16_array(np, "language-id", &hub->lang_id, 1))
544 hub->lang_id = USB251XB_DEF_LANGUAGE_ID;
549 hub->manufacturer_len = strlen(str) & 0xFF;
550 memset(hub->manufacturer, 0, USB251XB_STRING_BUFSIZE);
553 (wchar_t *)hub->manufacturer,
558 hub->product_len = strlen(str) & 0xFF;
559 memset(hub->product, 0, USB251XB_STRING_BUFSIZE);
562 (wchar_t *)hub->product,
568 hub->serial_len = strlen(str) & 0xFF;
569 memset(hub->serial, 0, USB251XB_STRING_BUFSIZE);
572 (wchar_t *)hub->serial,
579 hub->port_swap = USB251XB_DEF_PORT_SWAP;
580 usb251xb_get_ports_field(hub, "swap-dx-lanes", data->port_cnt,
581 false, &hub->port_swap);
586 hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
587 hub->boost_up = USB251XB_DEF_BOOST_UP;
588 hub->boost_57 = USB251XB_DEF_BOOST_57;
589 hub->boost_14 = USB251XB_DEF_BOOST_14;
590 hub->port_map12 = USB251XB_DEF_PORT_MAP_12;
591 hub->port_map34 = USB251XB_DEF_PORT_MAP_34;
592 hub->port_map56 = USB251XB_DEF_PORT_MAP_56;
593 hub->port_map7 = USB251XB_DEF_PORT_MAP_7;
632 static int usb251xb_get_ofdata(struct usb251xb *hub,
641 struct usb251xb *hub = data;
643 regulator_disable(hub->vdd);
646 static int usb251xb_probe(struct usb251xb *hub)
648 struct device *dev = hub->dev;
655 err = usb251xb_get_ofdata(hub,
665 * tries to work with the bus at the moment the hub reset is released,
667 * one of the config modes makes the hub loading a default registers
668 * value without SMBus-slave interface activation. If the hub
671 * hub i2c-interface resides for the device-specific reset timing. But
672 * the GPIO controller, which is used to handle the hub reset, might be
675 * reset state (it may affect the hub configuration) and we can't lock
678 err = usb251x_check_gpio_chip(hub);
682 hub->vdd = devm_regulator_get(dev, "vdd");
683 if (IS_ERR(hub->vdd))
684 return PTR_ERR(hub->vdd);
686 err = regulator_enable(hub->vdd);
691 usb251xb_regulator_disable_action, hub);
695 err = usb251xb_connect(hub);
697 dev_err(dev, "Failed to connect hub (%d)\n", err);
709 struct usb251xb *hub;
711 hub = devm_kzalloc(&i2c->dev, sizeof(struct usb251xb), GFP_KERNEL);
712 if (!hub)
715 i2c_set_clientdata(i2c, hub);
716 hub->dev = &i2c->dev;
717 hub->i2c = i2c;
719 return usb251xb_probe(hub);
725 struct usb251xb *hub = i2c_get_clientdata(client);
727 return regulator_disable(hub->vdd);
733 struct usb251xb *hub = i2c_get_clientdata(client);
736 err = regulator_enable(hub->vdd);
740 return usb251xb_connect(hub);