Custom function for 'map_irq' was introduced in commit fab6710e4c51 ("staging: mt7621-pci: fix PCIe interrupt mapping") This is not really necessary and code has been fixed to avoid custom configuration of the virtual bridges and make possible to properly map the root ports interrupts using this standard properties. Hence properly update device tree accordly. Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20210505121736.6459-10-sergio.paracuellos@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>