Comment 1 for bug 1927613

Hardware Certification have completed testing this -proposed kernel. No regressions were observed, results are available here:
Rpi2b-armhf: https://certification.canonical.com/hardware/201903-26933/submission/214772/
Rpi3b-arm64: https://certification.canonical.com/hardware/201811-26649/submission/214771/
Rpi3b-armhf: https://certification.canonical.com/hardware/201907-27197/submission/214766/
Rpi3a+-arm64: https://certification.canonical.com/hardware/201907-27199/submission/214767/
Rpi3a+-armhf: https://certification.canonical.com/hardware/201901-26785/submission/214770/
Rpi3b+-arm64: https://certification.canonical.com/hardware/201907-27198/submission/214765/
Rpi3b+-armhf: https://certification.canonical.com/hardware/201810-26542/submission/214769/
Rpi4b-1g-arm64: https://certification.canonical.com/hardware/201911-27471/submission/214786/
Rpi4b-1g-armhf: https://certification.canonical.com/hardware/201910-27407/submission/214757/
Rpi4b-2g-arm64: https://certification.canonical.com/hardware/201911-27507/submission/214762/
Rpi4b-2g-armhf: https://certification.canonical.com/hardware/201911-27506/submission/214759/
Rpi4b-4g-arm64: https://certification.canonical.com/hardware/201911-27455/submission/214756/
Rpi4b-4g-armhf: https://certification.canonical.com/hardware/201911-27456/submission/214791/
Rpi4b-8g-arm64: https://certification.canonical.com/hardware/202004-27865/submission/214758/
Rpi4b-8g-armhf: https://certification.canonical.com/hardware/202004-27866/submission/214764/
CM3-arm64: https://certification.canonical.com/hardware/201711-25992/submission/214768/
CM3-armhf: https://certification.canonical.com/hardware/201711-25992/submission/214788/
CM3+-arm64: https://certification.canonical.com/hardware/201908-27277/submission/214760/
CM3+-armhf: https://certification.canonical.com/hardware/201908-27277/submission/214779/