Like Sophgo SG2042, SG2044 also uses an external interrupt controller to handle MSI/MSI-X. It supports more interrupt and has a different msi message address mapping. The patch follows tips:irq/drivers, which contains Chen Wang's patch for SG2042 MSI controller [1]. [1]: https://lore.kernel.org/all/cover.1740535748.git.unicorn_wang@xxxxxxxxxxx/ Changed from v1: - https://lore.kernel.org/all/20250303111648.1337543-1-inochiama@xxxxxxxxx/ 1. patch 1: apply Conor's tag 2. patch 1: improve the bindings comments. 3. patch 2: rebased on tips:irq/drivers patch 4. patch 2: remove unused macro "SG2042_MAX_MSI_VECTOR" 5. patch 2: rename generic structure name to match sg204x. 6. patch 2: rename info field name to avoid misunderstanding. Inochi Amaoto (2): dt-bindings: interrupt-controller: Add Sophgo SG2044 MSI controller irqchip/sg2042-msi: Add the Sophgo SG2044 MSI interrupt controller .../sophgo,sg2042-msi.yaml | 4 +- drivers/irqchip/irq-sg2042-msi.c | 124 +++++++++++++++--- 2 files changed, 106 insertions(+), 22 deletions(-) -- 2.48.1
