[PATCH v3 0/3] mailbox: add samsung exynos driver

From: Tudor Ambarus
Date: Thu Dec 05 2024 - 12:41:57 EST


Hi,

The samsung exynos mailbox controller has 16 flag bits for hardware
interrupt generation and a shared register for passing mailbox messages.
When the controller is used by the ACPM protocol the shared register is
ignored and the mailbox controller acts as a doorbell. The controller
just raises the interrupt to APM after the ACPM protocol has written
the message to SRAM.

I mark this as v3 because it is a continuation of:
https://lore.kernel.org/linux-arm-kernel/20241017163649.3007062-1-tudor.ambarus@xxxxxxxxxx/

Changes in v3:
- decouple the mailbox controller driver from the ACPM protocol driver
- address Krzysztof's eview comments

Thanks,
ta

Tudor Ambarus (3):
dt-bindings: mailbox: add bindings for samsung,exynos
mailbox: add samsung exynos driver
MAINTAINERS: add entry for samsung exynos mailbox driver

.../bindings/mailbox/samsung,exynos.yaml | 70 +++++++++
MAINTAINERS | 9 ++
drivers/mailbox/Kconfig | 11 ++
drivers/mailbox/Makefile | 2 +
drivers/mailbox/exynos-mailbox.c | 143 ++++++++++++++++++
5 files changed, 235 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mailbox/samsung,exynos.yaml
create mode 100644 drivers/mailbox/exynos-mailbox.c

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