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Qualcomm is happy to enter a support contract for the BSP they provide. It will be frozen at that already-outdated LTS kernel with whatever mainline backports t
by tadfisher 3y ago
Qualcomm is happy to enter a support contract for the BSP they provide. It will be frozen at that already-outdated LTS kernel with whatever mainline backports they feel the need to apply, and the drivers will be the same binary blobs shipped on day one because Android HAL.
This, understandably, runs into Google's CTS policies regarding minimum kernel versions and others, which is why 2 OS releases + 1 year security became the norm.
Still, Projects Treble and Mainline just reached the point where you can stick with 5.x kernels and have an extended support schedule. This involved revving the HAL interfaces among other changes that are just not (economically) feasible to backport. OEM BSPs that are derived from Android Common Kernel releases can feasibly be supported for many years; for example, 5.10 shipped to AOSP in 2021 and will be supported through 2026 [1].
1: https://source.android.com/docs/core/architecture/kernel/android-common#kmi-branch-lifecycle https://source.android.com/docs/core/architecture/kernel/and...