linux-toradex.git/include/linux/mailbox/exynos-message.h, branch v7.0-rc6 Linux kernel for Apalis and Colibri modules mailbox: add Samsung Exynos driver 2025-01-18T22:18:48+00:00 Tudor Ambarus tudor.ambarus@linaro.org 2025-01-15T14:18:15+00:00 fbf7e5ce408e0619072e84e93e875de52f2b5fa5 The Samsung Exynos mailbox controller, used on Google GS101 SoC, has 16 flag bits for hardware interrupt generation and a shared register for passing mailbox messages. When the controller is used by the ACPM interface the shared register is ignored and the mailbox controller acts as a doorbell. The controller just raises the interrupt to APM after the ACPM interface has written the message to SRAM. Add support for the Samsung Exynos mailbox controller. Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com> 
The Samsung Exynos mailbox controller, used on Google GS101 SoC, has 16
flag bits for hardware interrupt generation and a shared register for
passing mailbox messages. When the controller is used by the
ACPM interface the shared register is ignored and the mailbox controller
acts as a doorbell. The controller just raises the interrupt to APM
after the ACPM interface has written the message to SRAM.

Add support for the Samsung Exynos mailbox controller.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>