Cirrus Logic Madera drivers

Drivers for the Cirrus Logic CS47L15/35/85/90/92 Smart Codecs are supported by our "Madera" drivers.

We upstream all the driver support to the mainline Linux kernel but we also maintain backport branches to older kernel versions that are in very common use. The backport branches will also often contain the latest patches which may not have made it into the mainline Linux kernel yet.

Backport branches

Backport branch names are in the format vX.Y-madera, where X.Y is the base Linux kernel version for this branch. The branch contains only the patches for our codecs and any critical bugfixes or backported kernel patches that are required, so they should merge cleanly into any kernel tree from the same kernel version.

Branch	Status
v5.4-madera	Active
v4.19-madera	Active
v4.14-madera	Active
v4.9-madera	Maintenance
v4.4-madera	Legacy
v3.18-madera	Legacy

Supported codecs

Codec	Supported in mainline Linux from	Supported on backport branches
CS42L92	v5.4 (use cs47l92 driver)	v5.4-madera v4.19-madera v4.14-madera v4.9-madera v4.4-madera
CS47L15	v5.4	v5.4-madera v4.19-madera v4.14-madera v4.4-madera v3.18-madera
CS47L35	v5.3	v5.4-madera v4.19-madera v4.14-madera v4.9-madera v4.4-madera v3.18-madera
CS47L85	v5.3	v5.4-madera v4.19-madera v4.14-madera v4.9-madera v4.4-madera v3.18-madera
CS47L90	v5.3	v5.4-madera v4.19-madera v4.14-madera v4.9-madera v4.4-madera v3.18-madera
CS47L92	v5.4	v5.4-madera v4.19-madera v4.14-madera v4.9-madera v4.4-madera