From: Alexey Klimov <alexey.klimov@linaro.org>
To: Krzysztof Kozlowski <krzk@kernel.org>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Alim Akhtar <alim.akhtar@samsung.com>,
Sam Protsenko <semen.protsenko@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Tudor Ambarus <tudor.ambarus@linaro.org>,
Jassi Brar <jassisinghbrar@gmail.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>,
Peter Griffin <peter.griffin@linaro.org>,
linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Alexey Klimov <alexey.klimov@linaro.org>
Subject: [PATCH v2 0/3] Exynos850 APM-to-AP mailbox support
Date: Thu, 02 Apr 2026 03:20:13 +0100 [thread overview]
Message-ID: <20260402-exynos850-ap2apm-mailbox-v2-0-ca5ffdff99d4@linaro.org> (raw)
This patch series introduces support for the APM-to-AP mailbox on the
Exynos850 SoC. This mailbox is required for communicating with the APM
co-processor using ACPM.
The Exynos850 mailbox operates similarly to the existing gs101
implementation, but the register offsets and IRQ mask bits differ.
This series abstracts these differences into platform-specific data
structures matched via the device tree.
Also, it requires APM-to-AP mailbox clock in CMU_APM block. These
were marged already (thanks Krzysztof!) so they are dropped from
this v2.
Please also advice if mailbox change should be split out as a separate
patch.
Will be appreciated if it can be tested on gs101 to make sure that I
didn't break anything, I don't have dev gs101 devices.
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
---
Changes in v2:
- dropped clock patches (they seem to be merged);
- patch 3: updated commit description mentioning that
exynos850 is not compatible to gs101 mbox (as suggested by Krzysztof);
- fixed comment description for struct exynos_mbox_driver_data
(reported by kernel test robot <lkp@intel.com>);
- Link to v1: https://lore.kernel.org/r/20260320-exynos850-ap2apm-mailbox-v1-0-983eb3f296fc@linaro.org
---
Alexey Klimov (3):
dt-bindings: mailbox: google,gs101-mbox: Add samsung,exynos850-mbox
mailbox: exynos: Add support for Exynos850 mailbox
arm64: dts: exynos850: Add ap2apm mailbox
.../bindings/mailbox/google,gs101-mbox.yaml | 4 +-
arch/arm64/boot/dts/exynos/exynos850.dtsi | 9 +++
drivers/mailbox/exynos-mailbox.c | 67 +++++++++++++++++++++-
3 files changed, 76 insertions(+), 4 deletions(-)
---
base-commit: bd0f139e5fc11182777b81cefc3893ea508544ec
change-id: 20260320-exynos850-ap2apm-mailbox-cff0c8d69898
Best regards,
--
Alexey Klimov <alexey.klimov@linaro.org>
next reply other threads:[~2026-04-02 2:20 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-02 2:20 Alexey Klimov [this message]
2026-04-02 2:20 ` [PATCH v2 1/3] dt-bindings: mailbox: google,gs101-mbox: Add samsung,exynos850-mbox Alexey Klimov
2026-04-02 8:11 ` Krzysztof Kozlowski
2026-04-02 8:46 ` Tudor Ambarus
2026-04-02 2:20 ` [PATCH v2 2/3] mailbox: exynos: Add support for Exynos850 mailbox Alexey Klimov
2026-04-02 8:11 ` Krzysztof Kozlowski
2026-04-02 8:42 ` Tudor Ambarus
2026-04-08 13:08 ` Alexey Klimov
2026-04-09 12:04 ` Tudor Ambarus
2026-04-28 20:26 ` Alexey Klimov
2026-04-29 9:07 ` Tudor Ambarus
2026-04-02 2:20 ` [PATCH v2 3/3] arm64: dts: exynos850: Add ap2apm mailbox Alexey Klimov
2026-04-02 8:01 ` Krzysztof Kozlowski
2026-04-02 13:30 ` Alexey Klimov
2026-04-02 13:32 ` Krzysztof Kozlowski
2026-04-02 8:48 ` Tudor Ambarus
2026-04-02 8:45 ` [PATCH v2 0/3] Exynos850 APM-to-AP mailbox support Tudor Ambarus
2026-04-08 14:05 ` Alexey Klimov
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