Drop the gpio line names, which cause gpiolib to complain loudly
whenever a second ftdi gpiochip is registered:
gpio gpiochip5: Detected name collision for GPIO name 'CBUS0'
gpio gpiochip5: Detected name collision for GPIO name 'CBUS1'
gpio gpiochip5: Detected name collision for GPIO name 'CBUS2'
gpio gpiochip5: Detected name collision for GPIO name 'CBUS3'
and also prevents the legacy sysfs interface from being used (as the
line names are used as device names whenever they are set):
sysfs: cannot create duplicate filename '/class/gpio/CBUS0'
Until non-unique names are supported by gpiolib (without warnings and
stack dumps), let's leave the gpio lines unnamed.
Signed-off-by: Johan Hovold <johan@kernel.org>
#ifdef CONFIG_GPIOLIB
-static const char * const ftdi_ftx_gpio_names[] = {
- "CBUS0", "CBUS1", "CBUS2", "CBUS3"
-};
-
static int ftdi_set_bitmode(struct usb_serial_port *port, u8 mode)
{
struct ftdi_private *priv = usb_get_serial_port_data(port);
/* FIXME: FT234XD alone has 1 GPIO, but how to recognize this IC? */
priv->gc.ngpio = 4;
- priv->gc.names = ftdi_ftx_gpio_names;
/* Determine which pins are configured for CBUS bitbanging */
priv->gpio_altfunc = 0xff;