| cp210x.c (b979248d16d12b913501dacd61bddc7a36aac886) | cp210x.c (d07082277f55cb395be00c813c62f3c956d1edb6) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Silicon Laboratories CP210x USB to RS232 serial adaptor driver 4 * 5 * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk) 6 * Copyright (C) 2010-2021 Johan Hovold (johan@kernel.org) 7 * 8 * Support to set flow control line levels using TIOCMGET and TIOCMSET --- 1529 unchanged lines hidden (view full) --- 1538 return -ENOTSUPP; 1539} 1540 1541static int cp210x_gpio_init_valid_mask(struct gpio_chip *gc, 1542 unsigned long *valid_mask, unsigned int ngpios) 1543{ 1544 struct usb_serial *serial = gpiochip_get_data(gc); 1545 struct cp210x_serial_private *priv = usb_get_serial_data(serial); | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Silicon Laboratories CP210x USB to RS232 serial adaptor driver 4 * 5 * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk) 6 * Copyright (C) 2010-2021 Johan Hovold (johan@kernel.org) 7 * 8 * Support to set flow control line levels using TIOCMGET and TIOCMSET --- 1529 unchanged lines hidden (view full) --- 1538 return -ENOTSUPP; 1539} 1540 1541static int cp210x_gpio_init_valid_mask(struct gpio_chip *gc, 1542 unsigned long *valid_mask, unsigned int ngpios) 1543{ 1544 struct usb_serial *serial = gpiochip_get_data(gc); 1545 struct cp210x_serial_private *priv = usb_get_serial_data(serial); |
| 1546 struct device *dev = &serial->interface->dev; |
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| 1546 unsigned long altfunc_mask = priv->gpio_altfunc; 1547 1548 bitmap_complement(valid_mask, &altfunc_mask, ngpios); 1549 | 1547 unsigned long altfunc_mask = priv->gpio_altfunc; 1548 1549 bitmap_complement(valid_mask, &altfunc_mask, ngpios); 1550 |
| 1551 if (bitmap_empty(valid_mask, ngpios)) 1552 dev_dbg(dev, "no pin configured for GPIO\n"); 1553 else 1554 dev_dbg(dev, "GPIO.%*pbl configured for GPIO\n", ngpios, 1555 valid_mask); |
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| 1550 return 0; 1551} 1552 1553/* 1554 * This function is for configuring GPIO using shared pins, where other signals 1555 * are made unavailable by configuring the use of GPIO. This is believed to be 1556 * only applicable to the cp2105 at this point, the other devices supported by 1557 * this driver that provide GPIO do so in a way that does not impact other --- 396 unchanged lines hidden --- | 1556 return 0; 1557} 1558 1559/* 1560 * This function is for configuring GPIO using shared pins, where other signals 1561 * are made unavailable by configuring the use of GPIO. This is believed to be 1562 * only applicable to the cp2105 at this point, the other devices supported by 1563 * this driver that provide GPIO do so in a way that does not impact other --- 396 unchanged lines hidden --- |