pinctrl: Questions regarding pinconf_ops and bcm2835

[Stefan Wahren <wahrenst@xxxxxxx>]

Hi,
i recently noticed that the BCM2711 (used on Raspberry Pi 4) doesn't
implement pin_config_get, but this SOC is able to read back the bias
settings of the pins. After looking deeper into the pinconf_ops i had
some questions:

1. Are there any other benefits from implementing pin_config_get except
of a proper debugfs output?

2. Since the pin direction of BCM2835/2711 (input/output) is already
handled by pinmux_ops via gpio_set_direction, how should pin_config_set
handle PIN_CONFIG_OUTPUT_ENABLE?

3. In case pin_config_get is implemented should the parameter
PIN_CONFIG_OUTPUT_ENABLE and PIN_CONFIG_OUTPUT be handled?

Best regards