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USB: serial: ftdi_sio: drop GPIO line checking dead code

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Now that gpiolib can track the validity of GPIO pins, there is no need
to check whether the line is valid in request().

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201204164739.781812-5-maz@kernel.org
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
[johan: amend commit message]
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Marc Zyngier 2020-12-04 16:47:39 +00:00 committed by Johan Hovold
parent 11fb08cffb
commit 5d47c887cc
1 changed files with 0 additions and 3 deletions
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3
drivers/usb/serial/ftdi_sio.c
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@ -1841,9 +1841,6 @@ static int ftdi_gpio_request(struct gpio_chip *gc, unsigned int offset)
struct ftdi_private *priv = usb_get_serial_port_data(port);
int result;
if (priv->gpio_altfunc & BIT(offset))
return -ENODEV;
mutex_lock(&priv->gpio_lock);
if (!priv->gpio_used) {
/* Set default pin states, as we cannot get them from device */