linux-kernel - [PATCH v2] arm64: dts: mt8183: jacuzzi: Remove CrosEC base detection node

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Message-ID: <20240112142032.909736-1-nfraprado@collabora.com>
Date: Fri, 12 Jan 2024 11:20:28 -0300
From: Nícolas F. R. A. Prado <nfraprado@...labora.com>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Matthias Brugger <matthias.bgg@...il.com>
Cc: kernel@...labora.com,
	Chen-Yu Tsai <wenst@...omium.org>,
	Nícolas F. R. A. Prado <nfraprado@...labora.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Enric Balletbo i Serra <eballetbo@...nel.org>,
	Ikjoon Jang <ikjn@...omium.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Stephen Boyd <swboyd@...omium.org>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v2] arm64: dts: mt8183: jacuzzi: Remove CrosEC base detection node

The cbas node is used to describe base detection functionality in the
ChromeOS EC, which is used for units that have a detachable keyboard and
thus rely on this functionality to switch between tablet and laptop
mode.

All machines in the jacuzzi family are either clamshells (ie normal
laptops) or convertibles, meaning the keyboard can be flipped but not
detached. The detection for the keyboard getting flipped is handled by
the driver bound to the keyboard-controller node in the EC.

Since there is no base detection in these machines, and the device
backed by this node fails to probe and goes unused, delete the node from
the DT.

Fixes: 4fa8492d1e5b ("arm64: dts: mt8183: add cbas node under cros_ec")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

---

Changes in v2:
- Moved cbas node removal to jacuzzi dtsi

 arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi.dtsi
index 7592e3b86037..8c9f7435cf4c 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi.dtsi
@@ -484,3 +484,6 @@ volup-btn-odl {
 	};
 };
 
+&cros_ec {
+	/delete-node/ cbas;
+};
-- 
2.43.0