[PATCH v3 0/3] irqchip: Add Sophgo SG2042 MSI controller

[Chen Wang <unicornxw@gmail.com>]

From: Chen Wang <unicorn_wang@outlook.com>

This controller is on the Sophgo SG2042 SoC to transform interrupts from
PCIe MSI to PLIC interrupts.

Thanks,
Chen

---

Changes in v3:
  The patch series is based on v6.13-rc7.

  Fixed following issues as per comments from Krzysztof Kozlowski, Samuel Holland,
  Christophe JAILLET, Inochi Amaoto, thanks.

  - bindings: use reg for doorbell, fixed wrong usage of additionalProperties
    and misc. 
  - Improve driver code:
    - Fixed potentional memory leak issues.
    - Fixed some build warnings reported by test robot.
    - Optimize and simplify the code when allocating hwirq.
    - Use DECLARE_BITMAP instead of kzalloc.
    - Some other coding style improvements.

Changes in v2:
  The patch series is based on v6.13-rc2. You can simply review or test the
  patches at the link [2].

  Fixed following issues as per comments from Rob Herring, Thomas Gleixner, thanks.

  - Improve driver binding description, use msi-ranges instread.
  - Improve driver code:
    - Improve coding style.
    - Fixed bug that possible memory leak of bitmap when sg2042_msi_init_domains returns error.
    - Use guard(mutex).
    - Use the MSI parent model.

Changes in v1:
  The patch series is based on v6.12-rc7. You can simply review or test the
  patches at the link [1].

Link: https://lore.kernel.org/linux-riscv/cover.1731296803.git.unicorn_wang@outlook.com/ [1]
Link: https://lore.kernel.org/linux-riscv/cover.1733726057.git.unicorn_wang@outlook.com/ [2]
---

Chen Wang (3):
  dt-bindings: interrupt-controller: Add Sophgo SG2042 MSI
  irqchip: Add the Sophgo SG2042 MSI interrupt controller
  riscv: sophgo: dts: add msi controller for SG2042

 .../sophgo,sg2042-msi.yaml                    |  58 ++++
 arch/riscv/boot/dts/sophgo/sg2042.dtsi        |  10 +
 drivers/irqchip/Kconfig                       |  12 +
 drivers/irqchip/Makefile                      |   1 +
 drivers/irqchip/irq-sg2042-msi.c              | 268 ++++++++++++++++++
 5 files changed, 349 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/sophgo,sg2042-msi.yaml
 create mode 100644 drivers/irqchip/irq-sg2042-msi.c


base-commit: 5bc55a333a2f7316b58edc7573e8e893f7acb532
-- 
2.34.1


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