[PATCH] dt-bindings: input: mediatek,mt6779-keypad: add the MT8173 keypad
From: Ryan Brue <hidden>
Date: 2026-09-16 03:48:08
Also in:
linux-devicetree, linux-input, linux-mediatek, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, mediatek keypad driver, open firmware and flattened device tree bindings, the rest · Maintainers:
Dmitry Torokhov, Mattijs Korpershoek, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
MT8173's keypad controller is the same block this driver already handles. Its register map agrees offset for offset with the MT6779 one -- STA 0x00, MEM1..MEM5 0x04..0x14, DEBOUNCE 0x18, SEL 0x20, EN 0x24 -- and mt6779-keypad drives it with no code change, so the node only needs the fallback compatible in second position. Add the mt8173 string to the existing enum, which is what mt6873, mt8183, mt8365 and mt8516 already do. Verified on an MT8173 board (Amazon Fire HD 10 2017): the volume rocker reports through mt6779-keypad with no driver modification. Assisted-by: LLM Signed-off-by: Ryan Brue <redacted> --- This is the binding half only. The board device tree that uses it, an Amazon Fire HD 10 (2017), is not upstream yet and comes with the rest of that board's nodes later; adding the compatible first keeps that submission from carrying a forward reference. No driver change goes with it. mt6779-keypad matches on the fallback, which is how mt8183, mt8365 and mt8516 bind today -- only mt6779 and mt6873 are in the driver's own match table. --- Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml | 1 + 1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
index 914dd3283df3..b45dbf805ac8 100644
--- a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
+++ b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml@@ -27,6 +27,7 @@ properties: - items: - enum: - mediatek,mt6873-keypad + - mediatek,mt8173-keypad - mediatek,mt8183-keypad - mediatek,mt8365-keypad - mediatek,mt8516-keypad
--- base-commit: fd73f4a6659897191fa0d40695fe370925dd3780 change-id: 20260914-rbrue-suez-upstreaming-mt8173-keypad-fddc316ae098 Best regards, -- Ryan Brue [off-list ref]