linux-kernel - [PATCH v2 0/3] irqchip/sg2042-msi: Set irq type according to DT configuration

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Message-Id: <cover.1756169460.git.unicorn_wang@outlook.com>
Date: Tue, 26 Aug 2025 09:09:13 +0800
From: Chen Wang <unicornxw@...il.com>
To: u.kleine-koenig@...libre.com,
	aou@...s.berkeley.edu,
	unicorn_wang@...look.com,
	conor+dt@...nel.org,
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	linux-riscv@...ts.infradead.org,
	sophgo@...ts.linux.dev
Subject: [PATCH v2 0/3] irqchip/sg2042-msi: Set irq type according to DT configuration

From: Chen Wang <unicorn_wang@...look.com>

The original MSI interrupt type was hard-coded, which was not a good idea.
Now it is changed to read the device tree configuration and then set the
interrupt type.

This patchset is based on irq/drivers branch of tip.

---

Changes in v2:
  The patch series is based on irq/drivers branch of tip.

  Reverted the change to obtain params of "msi-ranges"; it's better not to
  assume the value of "#interrupt-cells" is 2, even though it's known to be
  the case. Thanks to Inochi for the comments.

Changes in v1:
  The patch series is based on irq/drivers branch of tip. You can simply review
  or test the patches at the link [1].

Link: https://lore.kernel.org/linux-riscv/cover.1756103516.git.unicorn_wang@outlook.com/ [1]
---

Chen Wang (3):
  irqchip/sg2042-msi: Set irq type according to DT configuration
  riscv: sophgo: dts: sg2042: change msi irq type to
    IRQ_TYPE_EDGE_RISING
  riscv: sophgo: dts: sg2044: change msi irq type to
    IRQ_TYPE_EDGE_RISING

 arch/riscv/boot/dts/sophgo/sg2042.dtsi | 2 +-
 arch/riscv/boot/dts/sophgo/sg2044.dtsi | 2 +-
 drivers/irqchip/irq-sg2042-msi.c       | 7 +++++--
 3 files changed, 7 insertions(+), 4 deletions(-)

base-commit: 8ff1c16c753e293c3ba20583cb64f81ea7b9a451
-- 
2.34.1