From mboxrd@z Thu Jan 1 00:00:00 1970 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 04B973D566C; Wed, 15 Apr 2026 14:47:28 +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=1776264449; cv=none; b=LIbi9JrR0lRWslwf/S2Z8QPWrmYw1Urr83Kgm/xSPdGeBX2cnUT/ru6bXJYoqn6oTDlJ6nXblGEZI85LOXcWYhwpl6JbNHQPobsc693luxPsTXc92EseKHeRyfRHnHZHLdBBUish5XjXBt2/mGW8q8AXjhY71M4Uflj0Qrv+0bs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776264449; c=relaxed/simple; bh=VlRI5S6/EKWMryZiCAdrRWfUyjP1Q3iu79l43NAcXbs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=PyxQkbAGAYNl5iNOlTqsiarrJKY42VtcznyzhlCu3cc4jElEXxnBumE5hdx2JWIhi8rYtWmONjmSGaUN6ZDDiQKRFJx6W2S1n9HcYFeA8LatgxDmefup06m6TJ/fAN6B7Mt3C560PrFVvcB/AAJ0802Yxr/kxmtilKmo/sHyAB0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Vu6hFCAr; 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="Vu6hFCAr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EBB24C2BCB3; Wed, 15 Apr 2026 14:47:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776264448; bh=VlRI5S6/EKWMryZiCAdrRWfUyjP1Q3iu79l43NAcXbs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Vu6hFCArYBqgJNOsuMT6ycfPQqyCZOG7ELAKSDwG06T4fmv6V9yMbaTWUP2U4EQ33 aSI/wAr5ycZm4NN9oL/9Zj0JMYReUMrKZrW8NFHtrILNxppYpjRGYBbTdoyb6Fzvwc 5NQClpHCjot2lbYlv7RqhiiOLFf33nBa+KJy+S1qPiaOZZE3aR518Y1LQLKkMnLHIt vDczLHF8NaBltX5z21I37fkpHCALZ7QELW6gkrugXr+A8dVd14bf96OyK9s9Vp/Nzk F6CmMPKxl8w7nxtguFzUE0jq0NMyKjwfUdlDwxh2BhQyH33xuu6ya0YrOXgSLfD7Hk vuIX3rI0F5tmQ== Date: Wed, 15 Apr 2026 15:47:23 +0100 From: Conor Dooley To: caohang@eswincomputing.com Cc: gregkh@linuxfoundation.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, Thinh.Nguyen@synopsys.com, p.zabel@pengutronix.de, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, ningyu@eswincomputing.com, linmin@eswincomputing.com, pinkesh.vaghela@einfochips.com Subject: Re: [PATCH v2 1/1] dt-bindings: usb: Fix EIC7700 USB reset's issue Message-ID: <20260415-overprice-fragment-e067eddefbd2@spud> References: <20260415064056.1757-1-caohang@eswincomputing.com> <20260415064238.1784-1-caohang@eswincomputing.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="HAKvTjPjG1HJUTqh" Content-Disposition: inline In-Reply-To: <20260415064238.1784-1-caohang@eswincomputing.com> --HAKvTjPjG1HJUTqh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 15, 2026 at 02:42:38PM +0800, caohang@eswincomputing.com wrote: > From: Hang Cao >=20 > The EIC7700 USB requires a USB PHY reset operation; otherwise, the USB > will not work. The reason why the USB driver that was applied can work > properly is that the USB PHY has already been reset in ESWIN's U-Boot. >=20 > However, the proper functioning of the USB driver should not be dependent > on the bootloader. Therefore, it is necessary to incorporate the USB PHY > reset signal into the DT bindings. >=20 > This patch does not introduce any backward incompatibility since the dts > is not upstream yet. As array of reset operations are used in the driver, > no modifications to the USB controller driver are needed. >=20 > Fixes: c640a4239db5 ("dt-bindings: usb: Add ESWIN EIC7700 USB controller") > Signed-off-by: Hang Cao Acked-by: Conor Dooley --HAKvTjPjG1HJUTqh Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCad+k+wAKCRB4tDGHoIJi 0uLaAQCXuBqrLnjuZ6816td8w0KY6sJyw83jGnyyeGPsTbK4QwEA5lYW+X5eFJml +L0RNQ8mjgM25sMKF31Bh7z7bSIe+Qk= =hRPj -----END PGP SIGNATURE----- --HAKvTjPjG1HJUTqh--