[0/4] armada-370-xp irqchip updates

Message

Marek Behún June 19, 2024, 2:11 p.m. UTC

Hi Thomas, Andrew, Andy, et al.

this is a resurrection of an old series of changes for the armada-370-xp
irqchip.

I have refactored these changes and updated commit messages.

The first three patches are small "cleanups".
The 4th is a little larger, it increases the number of available MSI
interrupt lines from 16 to 32, on platforms where the MPIC is not used
for IPI interrupts.

Note that this driver is in need of a major refactor, to bring it to
modern standards, but that is unfortunately currently infeasible with my
time constraints.

Marek

Pali Rohár (4):
  irqchip/armada-370-xp: Do not allow mapping IRQ 0 and 1
  irqchip/armada-370-xp: Exit ipi_resume() early if IPI is not used
  irqchip/armada-370-xp: Do not touch IPI registers on platforms without
    IPI
  irqchip/armada-370-xp: Add support for 32 MSI interrupts on non-IPI
    platforms

 drivers/irqchip/irq-armada-370-xp.c | 101 +++++++++++++++++++++++-----
 1 file changed, 86 insertions(+), 15 deletions(-)