From: Ryan Chen <ryan_chen@aspeedtech.com>
To: ryan_chen <ryan_chen@aspeedtech.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
"Alan Stern" <stern@rowland.harvard.edu>,
Philipp Zabel <p.zabel@pengutronix.de>,
<linux-usb@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Cc: Conor Dooley <conor.dooley@microchip.com>
Subject: [PATCH v3 1/4] dt-bindings: usb: uhci: Add reset property
Date: Fri, 19 Sep 2025 10:57:09 +0800 [thread overview]
Message-ID: <20250919025712.719246-2-ryan_chen@aspeedtech.com> (raw)
In-Reply-To: <20250919025712.719246-1-ryan_chen@aspeedtech.com>
The UHCI controller on Aspeed SoCs (including AST2700) requires
its reset line to be deasserted before the controller can be used.
Add an optional "resets" property to the UHCI device tree bindings
to describe the phandle to the reset controller.
This property is optional for platforms which do not require
explicit reset handling.
Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
---
Documentation/devicetree/bindings/usb/usb-uhci.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/usb-uhci.yaml b/Documentation/devicetree/bindings/usb/usb-uhci.yaml
index d8336f72dc1f..b1f2b9bd7921 100644
--- a/Documentation/devicetree/bindings/usb/usb-uhci.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-uhci.yaml
@@ -28,6 +28,9 @@ properties:
interrupts:
maxItems: 1
+ resets:
+ maxItems: 1
+
'#ports':
$ref: /schemas/types.yaml#/definitions/uint32
--
2.34.1
next prev parent reply other threads:[~2025-09-19 2:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-19 2:57 [PATCH v3 0/4] Add Aspeed AST2700 uhci support Ryan Chen
2025-09-19 2:57 ` Ryan Chen [this message]
2025-09-19 2:57 ` [PATCH v3 2/4] usb: uhci: Add reset control support Ryan Chen
2025-09-19 15:03 ` Alan Stern
2025-09-21 1:45 ` Ryan Chen
2025-09-22 2:03 ` Ryan Chen
2025-09-19 2:57 ` [PATCH v3 3/4] dt-bindings: usb: uhci: Add Aspeed AST2700 compatible Ryan Chen
2025-09-19 4:32 ` Rob Herring (Arm)
2025-09-19 2:57 ` [PATCH v3 4/4] usb: uhci: Add Aspeed AST2700 support Ryan Chen
2025-09-19 15:08 ` Alan Stern
2025-09-21 1:51 ` Ryan Chen
2025-09-22 2:52 ` Ryan Chen
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