Thread (4 messages) flat view 4 messages, 2 authors, 22d ago
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[PATCH v2 2/3] ARM: dts: stm32: Use STM32MP13xx compatible string for EHCI USB controller

From: Marek Vasut <hidden>
Date: 2026-08-28 15:21:57
Also in: linux-devicetree, linux-usb, lkml
Subsystem: arm/stm32 architecture, the rest · Maintainers: Maxime Coquelin, Alexandre Torgue, Linus Torvalds

Use accurate STM32MP13xx compatible string for EHCI USB controller in
addition to "generic-ehci" fallback compatible string. This is future
proof, and drivers can match on the accurate compatible string in case
they need to discern this controller from the generic-ehci one.

Signed-off-by: Marek Vasut <redacted>
---
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-usb@vger.kernel.org
---
V2: No change
---
 arch/arm/boot/dts/st/stm32mp131.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/st/stm32mp131.dtsi b/arch/arm/boot/dts/st/stm32mp131.dtsi
index d1c5afb5f89aa..ae45c2023afeb 100644
--- a/arch/arm/boot/dts/st/stm32mp131.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp131.dtsi
@@ -1137,7 +1137,7 @@ usbh_ohci: usb@5800c000 {
 		};
 
 		usbh_ehci: usb@5800d000 {
-			compatible = "generic-ehci";
+			compatible = "st,stm32mp13-ehci", "generic-ehci";
 			reg = <0x5800d000 0x1000>;
 			clocks = <&usbphyc>, <&rcc USBH>;
 			resets = <&rcc USBH_R>;
-- 
2.53.0

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