irqchip/aspeed-scu-ic: Refactor driver to support variant-based initialization

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The SCU IC driver handles each AST2600 instance with separate
initialization functions and hardcoded register definitions, which is
inflexible and creates duplicated code.

Consolidate the implementation by introducing a variant-based structure,
selected via compatible string, and use a unified init path and MMIO access
via of_iomap().  This simplifies the code and prepares for upcoming SoCs
like AST2700, which require split register handling.

[ tglx: Cleaned up coding style and massaged change log ]

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250908011812.1033858-2-ryan_chen@aspeedtech.com

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Ryan Chen 2025-09-08 09:18:09 +08:00 • committed by Thomas Gleixner

parent a186120c78

commit 86cd4301c2

1 changed files with 63 additions and 94 deletions

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drivers/irqchip/irq-aspeed-scu-ic.c

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