linux-kernel - [PATCH v4 0/4] arm64: exynos: gs101: add ACPM related nodes

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Message-Id: <20250207-gs101-acpm-dt-v4-0-230ba8663a2d@linaro.org>
Date: Fri, 07 Feb 2025 15:56:42 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Peter Griffin <peter.griffin@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 andre.draszik@...aro.org, kernel-team@...roid.com, willmcvicker@...gle.com, 
 peter.griffin@...aro.org, daniel.lezcano@...aro.org, 
 vincent.guittot@...aro.org, ulf.hansson@...aro.org, arnd@...db.de, 
 Jassi Brar <jassisinghbrar@...il.com>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH v4 0/4] arm64: exynos: gs101: add ACPM related nodes

Define SRAM, mailbox and ACPM protocol in device tree.
Enable the mailbox and ACPM protocol in defconfig.

Bindings for google,gs101-acpm-ipc are proposed at:
Link: https://lore.kernel.org/linux-samsung-soc/20250207-gs101-acpm-v7-0-ffd7b2fb15ae@linaro.org/T/#mb557ee342de628b1a8e462d4fb7c3ac6eb8be4e4

Changes in v4:
- rebase on top of v6.14-rc1.
- describe in the cover letter where are the ACPM bindings.
- Link to v3: https://lore.kernel.org/r/20241220-gs101-acpm-dt-v3-0-642d64daa5d1@linaro.org

Changes in v3:
- ACPM: don't specify the channel ID and type in DT: the channel ID is
  discovered at runtime and the channel type is always DOORBELL for the
  ACPM interface.
- mbox: update #mbox-cells = <0>;
- rebase on top of v6.13-rc3
- Link to v2: https://lore.kernel.org/r/20241212-b4-acpm-v4-upstream-dts-v2-0-91b7a6f6d0b0@linaro.org

Changes in v2:
- update nodes based on the bindings updates
- update mailbox and power-management (mailbox client) nodes to specify
  channel type (doorbell or data) and channel ID.

v1:
Link: https://lore.kernel.org/linux-arm-kernel/20241205180200.203146-1-tudor.ambarus@linaro.org/

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
Tudor Ambarus (4):
      arm64: dts: exynos: gs101: add SRAM node
      arm64: dts: exynos: gs101: add AP to APM mailbox node
      arm64: dts: exynos: gs101: add ACPM protocol node
      arm64: defconfig: enable ACPM protocol and Exynos mailbox

 arch/arm64/boot/dts/exynos/google/gs101.dtsi | 25 +++++++++++++++++++++++++
 arch/arm64/configs/defconfig                 |  2 ++
 2 files changed, 27 insertions(+)
---
base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b
change-id: 20241220-gs101-acpm-dt-6dcde166530a

Best regards,
-- 
Tudor Ambarus <tudor.ambarus@...aro.org>