Comment 1 for bug 1887072

Hardware Certification have completed testing this -proposed kernel. No regressions were observed, results are available here:
Rpi2b-armhf: https://certification.canonical.com/hardware/201906-27188/submission/174125/
Rpi3b-arm64: https://certification.canonical.com/hardware/201811-26649/submission/174123/
Rpi3b-armhf: https://certification.canonical.com/hardware/201811-26649/submission/174134/
Rpi3a+-arm64: https://certification.canonical.com/hardware/201901-26785/submission/174122/
Rpi3a+-armhf: https://certification.canonical.com/hardware/201901-26785/submission/174133/
Rpi3b+-arm64: https://certification.canonical.com/hardware/201810-26542/submission/174120/
Rpi3b+-armhf: https://certification.canonical.com/hardware/201810-26542/submission/174132/
Rpi4b-1g-arm64: https://certification.canonical.com/hardware/201910-27407/submission/174503/
Rpi4b-1g-armhf: https://certification.canonical.com/hardware/201910-27407/submission/174578/
Rpi4b-2g-arm64: https://certification.canonical.com/hardware/201911-27506/submission/174148/
Rpi4b-2g-armhf: https://certification.canonical.com/hardware/201911-27506/submission/174154/
Rpi4b-4g-arm64: https://certification.canonical.com/hardware/201911-27455/submission/174117/
Rpi4b-4g-armhf: https://certification.canonical.com/hardware/201911-27455/submission/174508/
CM3-arm64: https://certification.canonical.com/hardware/201711-25992/submission/174121/
CM3-armhf: https://certification.canonical.com/hardware/201711-25992/submission/174136/
CM3+-arm64: https://certification.canonical.com/hardware/201908-27277/submission/174119/
CM3+-armhf: https://certification.canonical.com/hardware/201908-27277/submission/174131/