[PATCH v2 0/5] irqchip/irq-vt8500: Cleanups and fixes for the irq-vt8500 driver

[Alexey Charkov <alchark@gmail.com>]

Fix the logic of ack/mask functions to actually do what their semantics
implies instead of lumping both actions into one. Also rework the chained
interrupts handling using common kernel infrastructure, while getting rid
of a boot-time WARN_ON due to a misplaced call to enable_irq.

Apparently neither edge-triggered interrupts nor chained interrupts had
any users, so nobody complained in 15 years.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
---
Changes in v2:
- Fixed subject prefixes to follow the standard rule for the -tip tree
  (thanks Thomas)
- Link to v1: https://lore.kernel.org/r/20250424-vt8500-intc-updates-v1-0-4ab7397155b3@gmail.com

---
Alexey Charkov (5):
      irqchip/irq-vt8500: Split up ack/mask functions
      irqchip/irq-vt8500: Drop redundant copy of the device node pointer
      irqchip/irq-vt8500: Don't require 8 interrupts from a chained controller
      irqchip/irq-vt8500: Use a dedicated chained handler function
      irqchip/irq-vt8500: Use fewer global variables and add error handling

 drivers/irqchip/irq-vt8500.c | 149 +++++++++++++++++++++++--------------------
 1 file changed, 80 insertions(+), 69 deletions(-)
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base-commit: 0a00723f4c2d0b273edd0737f236f103164a08eb
change-id: 20250424-vt8500-intc-updates-c364a31a36a9

Best regards,
-- 
Alexey Charkov <alchark@gmail.com>