MediaTek Upstreaming: From Bring-up to Test Coverage
summary
Upstreams multiple MediaTek Chromebooks and one smartphone by converting downstream board trees and boot images into upstream drivers, adding pinctrl, clocks, regulators and device-tree bindings so eMMC, SD and display boot; current 2022 Chromebook only misses external display support, one phone has working GPU but modem and charging remain. Uses hardware like a Suzy cable or breakout Type‑C UART, tooling such as bloatedmeter and checkpatch, and integrates KernelCI autobisect, which catches regressions on real ARM64 hardware and reduces bisect time by ~50%.
AI-written summary · about
chapters (8)
- 0:00MediaTek upstreaming intro
- 3:32Hardware tools for bring-up
- 8:33Software tools setup
- 13:53Early bring-up UART
- 15:39Pin control clock drivers
- 18:35Device tree regulators
- 20:44Test coverage importance
- 24:25Q&A on X29 GPU GPL
related talks
53mForward Porting Google Nexus 5X / 6P - Lessons from the Trenches and What's Next
40mSecond Source Component Probing on Device Tree Platforms- 40mSecond Source Component Probing on Device Tree Platforms
38mMainline Linux on AmLogic SoCs
42mAutomated Testing Laboratory for Embedded Linux Distributions
55mThe Embedded Linux Problem
15mPixel 6 support upstream and on android-mainline
38mQuality Beyond Kernelci.Org in Upstream Linux for TI SoCs