Merge branch irq/generic_handle_domain_irq into irq/irqchip-next

- Tree-wide conversion to generic_handle_domain_irq()
- irqdomain documentation update

Drag the pinctl ib-rockchip branch to resolve conflicts.

* irq/generic_handle_domain_irq:
  pinctrl/rockchip: drop the gpio related codes
  gpio/rockchip: drop irq_gc_lock/irq_gc_unlock for irq set type
  gpio/rockchip: support next version gpio controller
  gpio/rockchip: use struct rockchip_gpio_regs for gpio controller
  gpio/rockchip: add driver for rockchip gpio
  dt-bindings: gpio: change items restriction of clock for rockchip,gpio-bank
  pinctrl/rockchip: add pinctrl device to gpio bank struct
  pinctrl/rockchip: separate struct rockchip_pin_bank to a head file
  pinctrl/rockchip: always enable clock for gpio controller

Signed-off-by: Marc Zyngier <maz@kernel.org>