Linux kernel 5.17 released, our contributions
Linux v5.17 was released on March 20th, 2022. As usual, LWN covered the 5.17 merge window (part 1, part 2) and Kernel Newbies has a detailed breakdown of the features in the 5.17 release.
Here’s a summary of our contributions, organized by SoC family, and a graph of contributions by each engineer.
Our engineers continue to maintain and improve support for Amlogic SoCs in the kernel. Jerome Brunet added sound card support for the S805X-based Amlogic P241 board to play audio through HDMI and the internal DAC.
Amjad Ouled-Ameur fixed shared reset control in the USB driver used by the Meson S905X2.
Neil Armstrong made improvements in the DRM subsystem for Amlogic. This will assist the development of a HDMI transceiver driver for the older Meson8 SoCs, and sets the proper architecture for future MIPI-DSI support.
We also continued to support MediaTek SoCs. Kevin Hilman improved platforms like the MT8183 Pumpkin board where the watchdog is enabled by bootloader, and the kernel driver needs to be enabled to avoid the watchdog firing and causing reboot part way through kernel boot.
Fabien Parent improved the MT8183 evaluation board device tree to able to read the temperature for the thermistor connected to AUXIN0. Fabien also made improve the device tree for MT8192 and MT8516 SoCs.
Texas Instruments SoCs
We continue to upstream improvements for TI SoCs. Corentin Labbe increased priority of DES/3DES crypto accelerator to make sure it is picked before software implementation. Neil Armstrong improved the handling of display modes in the DRM driver used by many TI SoCs. Drew Fustini enabled the RTC driver to power off certain boards with an AM335x SoC like the BeagleBone Black.
Corentin Labbe made device tree improvements for the crypto-controller in RK3288 SoC.
Neil Armstrong added support for the PLX Technology OX810SE SoC which is used in some Western Digital Network Attached Storage (NAS) devices.
Neil Armstrong made improvements in the DRM subsystem including the driver for Synopsys DesignWare HDMI IP. Drew Fustini fixed a warning in a timer driver used on the Imagination Pistachio SoC.