linux-kernel - [PATCH 2/2] arm64: dts: ti: k3-am642-hummingboard-t-usb3: fix overlay boolean value

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Message-Id: <20241112-am64-overlay-bool-v1-2-b9d1faff444e@solid-run.com>
Date: Tue, 12 Nov 2024 08:41:33 +0200
From: Josua Mayer <josua@...id-run.com>
To: Rob Herring <robh@...nel.org>, Saravana Kannan <saravanak@...gle.com>, 
 Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>, 
 Tero Kristo <kristo@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, 
 Geert Uytterhoeven <geert@...ux-m68k.org>, 
 Josua Mayer <josua@...id-run.com>, Jon Nettleton <jon@...id-run.com>, 
 Yazan Shhady <yazan.shhady@...id-run.com>, rabeeh@...id-run.com
Subject: [PATCH 2/2] arm64: dts: ti: k3-am642-hummingboard-t-usb3: fix
 overlay boolean value

The USB-3.1 overlay uses /delete-property/ to unset a boolean property
on the usb controller limiting it to USB-2.0 by default.
Overlays can not delete a property from the base dtb.

Change the overlay to instead assign value "false" on the ti,usb2-only
boolean property, which is of_property_read_bool now evaluates as false.

Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Closes: https://lore.kernel.org/linux-devicetree/CAMuHMdXTgpTnJ9U7egC2XjFXXNZ5uiY1O+WxNd6LPJW5Rs5KTw@mail.gmail.com
Fixes: bbef42084cc1 ("arm64: dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3")
Signed-off-by: Josua Mayer <josua@...id-run.com>
---
 arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
index ffcc3bd3c7bc5d47ce9926a95a13af3f61182a2b..3ed709ff11fea1ba07e180d442ce6fda6acaa2a3 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
@@ -34,7 +34,7 @@ &serdes_mux {
 };
 
 &usbss0 {
-	/delete-property/ ti,usb2-only;
+	ti,usb2-only = "false";
 };
 
 &usb0 {

-- 
2.43.0