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

Message ID 20241205174137.190545-1-tudor.ambarus@linaro.org
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Series mailbox: add samsung exynos driver | expand

Message

Tudor Ambarus Dec. 5, 2024, 5:41 p.m. UTC 
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@linaro.org/

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