[PATCH 0/7] irqchip/irq-realtek-rtl: Add multi parent support

Markus Stockhausen posted 7 patches 2 days, 8 hours ago
.../realtek,rtl-intc.yaml                     |   5 +-
drivers/irqchip/irq-realtek-rtl.c             | 152 +++++++++++++-----
2 files changed, 113 insertions(+), 44 deletions(-)
[PATCH 0/7] irqchip/irq-realtek-rtl: Add multi parent support
Posted by Markus Stockhausen 2 days, 8 hours ago
The Realtek Otto switch series consists of multiple devices.

- RTL838x: single core (Realtek proprietary IRQ controller)
- RTL839x: multi core (Realtek proprietary IRQ controller)
- RTL930x: multi core (Realtek proprietary IRQ controller)
- RTL931x: multi core (MIPS GIC controller)

The proprietary interrupt controller supports hardware interrupt
routing. To be precise:

- The hardware knows up to 32 different interrupts.
- These can be assigned dynamically to the normal MIPS 
  interrupts (2-6).

For this each of the 32 hardware interrupts has a routing
register. If properly set up, important interrupts (like
timers) can be prioritized.

Until now all interrupts are always routed to the low priority
MIPS interrupt 2. This series extends the driver by registering
multiple domains for the different MIPS interrupts and adding
the possibility for hardware devices to map a desired parent
interrupt.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
---



Markus Stockhausen (7):
  dt-bindings: interrupt-controller: realtek,rtl-intc: Allow 2 interrupt
    cells
  irqchip/irq-realtek-rtl: Use helper for parent setup
  irqchip/irq-realtek-rtl: Add interrupt data structure
  irqchip/irq-realtek-rtl: Add mask for interrupt handling
  irqchip/irq-realtek-rtl: Add a select function
  irqchip/irq-realtek-rtl: Allow shuffled interrupt order
  irqchip/irq-realtek-rtl: Activate multiple parents

 .../realtek,rtl-intc.yaml                     |   5 +-
 drivers/irqchip/irq-realtek-rtl.c             | 152 +++++++++++++-----
 2 files changed, 113 insertions(+), 44 deletions(-)

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2.54.0