[PATCH v2 0/2] nvme: apple: add t8132 (M4) ANS2 NVMe support

[Yureka Lilian]

This patch series adds dt-bindings and driver support for ANS2 NVMe on
the Apple t8132 (M4) SoC.

This variant requires the IO queues to be registered using additional
MMIO writes. Otherwise it is largerly the same as the ANS2 NVMe variants
present on Apple M1-M3 SoCs.

Signed-off-by: Yureka Lilian <yureka at cyberchaos.dev>
---
Changes in v2:
- Reverted the separate_nvmmu_base part, since reg[9] from the Apple
  device tree works for both nvme and nvmmu regs.
- Differentiate the meaning of mmio_nvme+0x1210 between t8103 and t8132
  resolves an ANS crash caused by the IO completion queue size mismatching
  between our data structures (64) and the ANS (65).
- Link to v1: https://patch.msgid.link/20260811-apple-nvme-t8132-v1-0-865be32e42c3@cyberchaos.dev

To: Sven Peter <sven at kernel.org>
To: Janne Grunau <j at jannau.net>
To: Neal Gompa <neal at gompa.dev>
To: Rob Herring <robh at kernel.org>
To: Krzysztof Kozlowski <krzk+dt at kernel.org>
To: Conor Dooley <conor+dt at kernel.org>
To: Keith Busch <kbusch at kernel.org>
To: Jens Axboe <axboe at kernel.dk>
To: Christoph Hellwig <hch at lst.de>
To: Sagi Grimberg <sagi at grimberg.me>
Cc: asahi at lists.linux.dev
Cc: linux-arm-kernel at lists.infradead.org
Cc: devicetree at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Cc: linux-nvme at lists.infradead.org
models: On t8132 this now sets the IO queue sizes and is 0-based. This

---
Yureka Lilian (2):
      dt-bindings: nvme: Add apple,t8132-nvme-ans2 compatible
      nvme: apple: add t8132 (M4) ANS2 NVMe support

 .../devicetree/bindings/nvme/apple,nvme-ans.yaml   |  1 +
 drivers/nvme/host/apple.c                          | 39 +++++++++++++++++++---
 2 files changed, 36 insertions(+), 4 deletions(-)
---
base-commit: e5e04726cdd043e309677071ab1b65a4b18f422b
change-id: 20260811-apple-nvme-t8132-31399d6f81aa

Best regards,
--  
Yureka Lilian <yureka at cyberchaos.dev>