From nobody Tue Feb 10 14:32:58 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E70E57E788; Fri, 23 Feb 2024 13:13:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708693988; cv=none; b=tcC6PNMJ4YWFOUYbRXZvZKeKeV9a9q5+yJpd8JL56Js7S6jM8gXUk9ZMfwsdxSvTVT5seUIiEJyOkl53JsVDhybKwS8vs+88blxiU4LcYi82o7lymjvhRrsLNUp3Fw3I2010az9LcIiEHRWTn7lpQA+lXjb7UWY8y5Jq5xvFqN0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708693988; c=relaxed/simple; bh=Ia7B/FTNmnvsDKGGZT1idUgrWrwpUdfNfZY24Zv7oDU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=N2tqI6tKis2q8N4mQ2p7gwMNaNz6H3m7vi4FZdAeLKWNUifllijM3GBzB3TkBSlA833CW4bO/RUS7MsPFCUmC/tXO7RWnXo50QvUVqCsMlX1uQRYCfeuqGm6YPuPTSFueunUwuJ/sAtKenIpKn5zT3BjIxQ9wwTEYLT05SIHjkE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=a6aJ29r6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="a6aJ29r6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03E29C433F1; Fri, 23 Feb 2024 13:13:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708693987; bh=Ia7B/FTNmnvsDKGGZT1idUgrWrwpUdfNfZY24Zv7oDU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=a6aJ29r6nAdNSOo01176zFTLT14uB9a8Hzs4cH7RkF5ocw1z80qpCd15z9vBXrjV5 UpNPBi0k9ZIOWQ4pR1VeFEbIIA/bSAE4CmWSLvC4kTgJkMwL2qxCnwAnVxfdF/2NYc f6fTaCpEiDOV1fmgf+EPvNYTEXPdkPcR9Fq5920hGvHeqT+022mQSiD62gwgrpFk7H kjFt80mBLystV/B/iAUDUkjLpxEoRaGbey4QEddOzzt7zRw+iPGdPFmSr1cdyhw1Kj NdIXTDUBWbOPlm5jA9dSUlxWdwVzQbvS+bT12cCRsxZGvpt61tXfoxv6OCCg+ipRG0 u+m+h/1yhqm/w== From: Roger Quadros Date: Fri, 23 Feb 2024 15:12:41 +0200 Subject: [PATCH v5 4/4] arm64: dts: ti: k3-am62a: Disable USB LPM Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240223-b4-for-v6-5-am62-usb-typec-dt-v5-4-4b5854d17d18@kernel.org> References: <20240223-b4-for-v6-5-am62-usb-typec-dt-v5-0-4b5854d17d18@kernel.org> In-Reply-To: <20240223-b4-for-v6-5-am62-usb-typec-dt-v5-0-4b5854d17d18@kernel.org> To: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nishanth Menon , Vignesh Raghavendra , Tero Kristo Cc: Andrew Davis , b-liu@ti.com, srk@ti.com, r-gunasekaran@ti.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Roger Quadros X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=1242; i=rogerq@kernel.org; h=from:subject:message-id; bh=Ia7B/FTNmnvsDKGGZT1idUgrWrwpUdfNfZY24Zv7oDU=; b=owEBbQKS/ZANAwAIAdJaa9O+djCTAcsmYgBl2JnQic6W1dmFUnWohl3Du6PlUiOwrkRvkqRwX hoBvVdq5GmJAjMEAAEIAB0WIQRBIWXUTJ9SeA+rEFjSWmvTvnYwkwUCZdiZ0AAKCRDSWmvTvnYw kz9UD/0cevH5+QTgEEpTt9ewCR0vTKFFEpHjrEpAWuD6h+dlLH0g7ZLvkprg9yPtl3W/KJF1L7+ xPuFFIqaY8VDYKi8jM1LLFoPFOozrC8lxDizkvZXN13pdJPoOUevQ5ecjO8vwIRFg6CsiJWJNlp FBhD3k4c3kNhg52YUcENxbxG+00TXztjko2tAEw5WWEqThWAAy3KoStSP5y2SjYybfWR7VSqwmg rrS2s3A9eO+eYOm7rBwW6FdF2R7nnDSwR99BKfOhT1Am81o5iJn1pZQAcCfqHIgrA+qAOeNv5Ls NVLWsAm4g7WuSx+MJpRS891IBPMNkNfeGrvGqoX+tVV4UYPbRf1RS5UF5eprNvijk9MWP/lY4zD xMtp4Y+FPz5rgIo0oY7wclqRRqq+D++xtKHYybkqtovXNvTZTa7eBLgi8mwucxwaG0g1vTw7Qic B0QtybIkP44LRmQ+I2prRvep9JNQPK1ndlimk072UaUHqyqx2ATYuo45qBDXIe/l8O1G8bmwB2R BQetzd6xFHV83QQvldm1DvdhHaCs4ph3HUmfpHieIfU7S9OODP42OSOpAYcsG3Vmb62ZzDuQ+f1 SL+6HGALxrYuUk3LfQ2Nzfzrw0UkRHo1/8FXWIqv/PXvXV1KWa0PiJgO/DTztwCVZ0aub5l3mQl vqGHwhI088ZKRxg== X-Developer-Key: i=rogerq@kernel.org; a=openpgp; fpr=412165D44C9F52780FAB1058D25A6BD3BE763093 As per AM62A TRM [1] USB Link Power Management (LPM) feature is not supported. Disable it else it may cause enumeration failure on some devices. > 4.9.2.1 USB2SS Unsupported Features > The following features are not supported on this family of devices: > ... > - USB 2.0 ECN: Link Power Management (LPM) > ... [1] - https://www.ti.com/lit/pdf/spruj16 Signed-off-by: Roger Quadros --- Changelog: v5: new patch --- arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dt= s/ti/k3-am62a-main.dtsi index a158df0d0ba6..adaf578280f9 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi @@ -621,6 +621,8 @@ usb0: usb@31000000 { interrupt-names =3D "host", "peripheral"; maximum-speed =3D "high-speed"; dr_mode =3D "otg"; + snps,usb2-gadget-lpm-disable; + snps,usb2-lpm-disable; }; }; =20 @@ -644,6 +646,8 @@ usb1: usb@31100000 { interrupt-names =3D "host", "peripheral"; maximum-speed =3D "high-speed"; dr_mode =3D "otg"; + snps,usb2-gadget-lpm-disable; + snps,usb2-lpm-disable; }; }; =20 --=20 2.34.1