Daily update · Aug 23–24, 2026
Linux mainline adds Axiado AX3005 mailbox support
New mailbox driver for the Axiado AX3005 SoC, plus a Btrfs maintainers update.
In brief
This update adds a new mailbox controller driver for the Axiado AX3005 SoC, along with its device tree binding. It also updates the Btrfs maintainers file to point to the development branch.
New support
Axiado AX3005 mailbox driver and binding
Adds a device tree binding and driver for the Axiado AX3005 mailbox controller. The hardware provides 8 TX and 8 RX channels through separate register regions, with per-channel interrupts for RX and polling for TX completion.
Why it matters: Enables Linux to use the mailbox hardware on Axiado AX3005 SoCs for host-coprocessor communication.
Maintainers
Update Btrfs git tree entries in MAINTAINERS
Adds a new entry pointing to the Btrfs development branch, while the existing linux-next entry remains slightly behind.
Why it matters: Helps contributors and automated tools pick the correct baseline for Btrfs development.
Source commits3 entries +
dt-bindings: mailbox: add Axiado AX3005 mailbox
Swark Yang · Aug 18, 2026 · 2 files
mailbox: add Axiado AX3005 mailbox driver
Swark Yang · Aug 18, 2026 · 4 files
MAINTAINERS: update btrfs git tree entries
David Sterba · Aug 19, 2026 · 1 files