It’s time to report on code flowing upstream again: Following up on our report for Linux 5.19, 6.0 and 6.1 this summarizes the progress on mainline support for the Librem 5 phone and its development kit during the 6.2, 6.3 and 6.4 development cycles.

Librem 5 hardware description updates

It’s crucial to describe our boards correctly and we constantly improve that description based on specifications, driver code and the hardware. During the last weeks and months we’ve improved power consumption and completed selfie-camera support among other things:

BroadMobi Modem driver update

We improved the serial communication with the BM818 modem:

MIPI CSI2 camera receiver updates

We’ve written a driver for the i.MX8MQ MIPI CSI2 camera receiver controller and included it in mainline Linux. We continue to support it and optimized it a bit:

Documentation updates

Documentation is always underevaluated. During working on camera, we improved Linux documentation a bit:

Code review

During this period we contributed 12 Reviewed-by: or Tested-by: tags to patches by other authors. Again we would like to thank everybody who reviewed our patches and helped us supporting the hardware in mainline Linux – especially Shawn for the DT review.


Have a look at our Linux tree to see what is currently being worked on and tested or help if you feel like joining the fun. The debian/README.source document describes our workflow.

Purism Products and Availability Chart

 ModelStatusLead Time 
USB Security Token Purism Librem KeyLibrem Key

(Made in USA)
In Stock
10 days
Most Secure PC Purism Librem Mini
Librem MiniIn Stock
10 days
Librem 5In Stock
10 days
Purism Liberty Phone with Made in USA ElectronicsLiberty Phone
(Made in USA Electronics)
In Stock
10 days
Librem 11In Stock
10 days
Most Secure Laptop Purism Librem 14Librem 14New Orders Shipping in October
6 weeks
Most Secure Server Purism Librem ServersLibrem ServerIn Stock
10 days
The current product and shipping chart of Purism Librem products, updated on September 19th, 2023

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