[PATCH v2 0/5] irqchip/alpine-msi: Cleanups and debug logging

[Eliav Farber <farbere@amazon.com>]

This series contains a few small cleanups for the Alpine MSIX irqchip
driver, followed by the addition of some optional debug logging.

Patches 1-4 are trivial, no-functional-change cleanups: convert the
license boilerplate to an SPDX identifier, drop the redundant
<asm/msi.h> include (already pulled in via <linux/msi.h>), fix the
missing space after a comma in a GENMASK_ULL() invocation, and use %u
for the unsigned values in the existing registration debug message.

Patch 5 adds an info message on successful initialisation and debug
messages on the MSI interrupt allocation and free paths, to make it
easier to follow the driver flow when debugging.

Build-tested for arm64 with the aarch64 toolchain and KCFLAGS=-Werror.
The driver is used by the Alpine V2, Alpine V3 and AL8 SoCs.

Changes in v2:
- Collected Reviewed-by from Radu on patches 1-3.
- New patch 4: use %u for the unsigned values in the existing
  "Registering" debug message and fix its wording (Radu).
- Patch 5: use %u for the unsigned values in the new messages (Radu),
  and write MSI/SPI in upper case to match patch 4.

v1: https://lore.kernel.org/r/20260923083703.38974-1-farbere@amazon.com

Eliav Farber (5):
  irqchip/alpine-msi: Use SPDX-License-Identifier
  irqchip/alpine-msi: Drop redundant asm/msi.h include
  irqchip/alpine-msi: Add missing space after comma in GENMASK_ULL
  irqchip/alpine-msi: Fix format and wording of the registration debug
    print
  irqchip/alpine-msi: Add debug logging for MSI allocation

 drivers/irqchip/irq-alpine-msi.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

-- 
2.47.3