Comment 1 for bug 1923775

Hardware Certification have completed testing this -proposed kernel. No regressions were observed, results are available here:
Rpi2b-armhf: https://certification.canonical.com/hardware/201608-25030/submission/211629/
Rpi3b-arm64: https://certification.canonical.com/hardware/201907-27197/submission/211633/
Rpi3b-armhf: https://certification.canonical.com/hardware/201907-27197/submission/211616/
Rpi3a+-arm64: https://certification.canonical.com/hardware/201901-26785/submission/211652/
Rpi3a+-armhf: https://certification.canonical.com/hardware/201907-27199/submission/211642/
Rpi3b+-arm64: https://certification.canonical.com/hardware/201907-27198/submission/212541/
Rpi3b+-armhf: https://certification.canonical.com/hardware/201810-26542/submission/211647/
Rpi4b-1g-arm64: https://certification.canonical.com/hardware/201910-27407/submission/211615/
Rpi4b-1g-armhf: https://certification.canonical.com/hardware/201911-27471/submission/212542/
Rpi4b-2g-arm64: https://certification.canonical.com/hardware/201911-27506/submission/211637/
Rpi4b-2g-armhf: https://certification.canonical.com/hardware/201911-27507/submission/211638/
Rpi4b-4g-arm64: https://certification.canonical.com/hardware/201911-27455/submission/211644/
Rpi4b-4g-armhf: https://certification.canonical.com/hardware/201911-27456/submission/211643/
Rpi4b-8g-arm64: https://certification.canonical.com/hardware/202004-27865/submission/211614/
Rpi4b-8g-armhf: https://certification.canonical.com/hardware/202004-27866/submission/211631/
CM3-arm64: https://certification.canonical.com/hardware/201711-25992/submission/211639/
CM3-armhf: https://certification.canonical.com/hardware/201711-25992/submission/211618/
CM3+-arm64: https://certification.canonical.com/hardware/201908-27277/submission/211658/
CM3+-armhf: https://certification.canonical.com/hardware/201908-27277/submission/211617/