On 20/12/2024 15:45, Tudor Ambarus wrote:
> GS101 has 14 mailbox controllers. Add the AP to APM mailbox node.
>
> Mailbox controllers have a shared register that can be used for passing
> the mailbox messages. The AP to APM mailbox controller is used just as a
> doorbell mechanism. It raises interrupt to the firmware after the mailbox
> message has been written to SRAM where the TX/RX rings are defined.
>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/exynos/google/gs101.dtsi | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
> index 1441e9a252c2..6947dd081a0e 100644
> --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
> +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
> @@ -1445,6 +1445,15 @@ wakeup-interrupt-controller {
> };
> };
>
> + ap2apm_mailbox: mailbox@17610000 {
> + compatible = "google,gs101-mbox";
I don't think I have this in my tree and cover letter does not explain
where I can find bindings. Nothing in next from few days ago. Always
document in DTS patchset where are the bindings, unless it's obvious.
Best regards,
Krzysztof
