irqchip/irq-realtek-rtl: Add interrupt data structure

To prepare for multiple parent interrupt domains add an intermediate
data structure. For now this will only host the link to the domain.
Additionally adapt a deviating variable name to driver standard "hw_irq".

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260605211646.2101652-4-markus.stockhausen@gmx.de
This commit is contained in:
Markus Stockhausen 2026-06-05 23:16:42 +02:00 • committed by Thomas Gleixner
commit 2568f6926c