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USB: serial: cp210x: add gpio-configuration debug printk
Add a debug printk to dump the GPIO configuration stored in EEPROM during probe. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org>
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@ -1543,10 +1543,16 @@ static int cp210x_gpio_init_valid_mask(struct gpio_chip *gc,
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{
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struct usb_serial *serial = gpiochip_get_data(gc);
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struct cp210x_serial_private *priv = usb_get_serial_data(serial);
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struct device *dev = &serial->interface->dev;
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unsigned long altfunc_mask = priv->gpio_altfunc;
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bitmap_complement(valid_mask, &altfunc_mask, ngpios);
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if (bitmap_empty(valid_mask, ngpios))
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dev_dbg(dev, "no pin configured for GPIO\n");
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else
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dev_dbg(dev, "GPIO.%*pbl configured for GPIO\n", ngpios,
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valid_mask);
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return 0;
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}
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