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Subject[PATCH v2 0/2] arm64: dts: qcom: beryllium compatible ordering and bindings update
Date
This series aligns the Xiaomi Poco F1 (beryllium) device tree
compatible strings with DT matching rules by ensuring proper
fallback to the generic device compatible.

Patch 1 updates the dt-bindings documentation to describe
the Tianma panel variant and clarify the expected compatible
string ordering and fallback requirements, aligning the
binding with actual DTS usage.

Patch 2 updates the DTS files to append the generic
"xiaomi,beryllium" compatible after the panel-specific ones.
This enables correct userspace fallback matching (e.g. for
hexagonrpcd), which currently fails when only the variant-
specific compatible is present. This constitutes a DT ABI
change, as additional compatible matches become possible.

Together, these changes fix an incomplete compatible chain
and ensure consistent behavior across panel variants.

Signed-off-by: David Heidelberg <david@ixit.cz>
---
Changes in v2:
- To be extra safe, CCed Arnauld and Marco (Mobian), Jens (for pmOS) is
already in the loop, Petr (for NixOS Mobile is already in the loop).
- Improved description and documented that main distributions
already use the patch (thus no API break will not happen to these
projects).
- Link to v1: https://lore.kernel.org/r/20260403-beryllium-compat-string-v1-0-0a6b9cb55a20@ixit.cz

---
David Heidelberg (1):
dt-bindings: arm: qcom: Document Xiaomi Poco F1 Tianma variant

Jens Reidel (1):
arm64: dts: qcom: sdm845-xiaomi-beryllium: Append compatible strings

Documentation/devicetree/bindings/arm/qcom.yaml | 10 ++++++++--
arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-ebbg.dts | 2 +-
arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-tianma.dts | 2 +-
3 files changed, 10 insertions(+), 4 deletions(-)
---
base-commit: cc13002a9f984d37906e9476f3e532a8cdd126f5
change-id: 20260403-beryllium-compat-string-cc149b90a29d

Best regards,
--
David Heidelberg <david@ixit.cz>



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