From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 A0F753A63FB; Sun, 6 Sep 2026 06:45:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788677129; cv=none; b=GnNT+7srJ4oNDA6AjlmmHX6Bxja4Tty6vjfCd9vE3sWeSLea/QJujPCkdoo034KjAaVQpTWUv4zjQz/EdkR2dIvWRyCQ9FIKjD2QrVgTl0FiGU1MDqvRHzlCL4LERo2hzBwhKw9+ZgTiyPCKokf2NppJ3OcGMQgDqfFAeLzHJI0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788677129; c=relaxed/simple; bh=z2oOz37GmJ3zKovvpUl/fcF7GSq0v34WJSVr17tbts8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=EEfEKJKEZna4xvKiBzfrWn4JaYPpFcffRxZHPio6A7uGZvLnaag8veJuYDRaTsAMESGSuyBahkwZNr3uTKjClYuf4AegspSTTJdr/U7WlKRQWkBcLqfOwO8XnLSB4/MetCGkATv3vSa0d3Q9st82cjC6h5KjWLH8zYHaAj+DJmI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aJv37LIk; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aJv37LIk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FDD41F00A3A; Sun, 6 Sep 2026 06:45:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788677127; bh=VuPvo+h6QX1slm6eVL0VdfPkLv4Csp05nKAR7+8MZ3k=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=aJv37LIk1nsQTrQL16AHIYsjtv5ajLCUecL2DGeLnr4NG8GgZ5s+cJ6HllOV3rJaV R0H4+IqbaNVTXtizTtaIB2W4Lemsg63BNyPL0Fhq5sWQ5fju6sbxYwU1z31WA6fFLr f7bvU7hANH+3XMF8KK5WoxnNlxuL9XxLAymfNmz06zJRkyayM/BEp7p8VJTJeqCHPV UcdOgaZSuBZvbNhUl3t6OvIKUM6A0YL/k1dC4AYJGPTUSXY+Lw7SdQix8lJWj5ZMno 5tMGwjcD9v1CglDlsr9N286ILo+af9WwF8lyYD4xUWDo6b8TrwKXE+HWZwgd5eR3YH jR+XhwdLTyVoA== Message-ID: Date: Sun, 6 Sep 2026 08:45:19 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 1/4] dt-bindings: usb: Add CIX Sky1 USBSSP RCSU system controller To: Hongliang Yang , peter.chen@kernel.org, gregkh@linuxfoundation.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: p.zabel@pengutronix.de, vkoul@kernel.org, neil.armstrong@linaro.org, pawell@cadence.com, rogerq@kernel.org References: <20260906032440.470788-1-hongliang.yang@cixtech.com> <20260906032440.470788-2-hongliang.yang@cixtech.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 06/09/2026 05:24, Hongliang Yang wrote: > Add device tree binding for the per-controller RCSU register regions > of the CIX Sky1 USBSSP controllers. The regions are exposed as syscon > nodes; USBSSP glue nodes reference their per-controller registers > through the cix,usb-rcsu phandle with register offsets. > > The per-controller RCSU control and status registers live in a shared > RCSU region described by the cix,sky1-usbss-rcsu binding and are > referenced through the cix,usb-rcsu phandle. > Signed-off-by: Hongliang Yang > --- > .../bindings/usb/cix,sky1-usbss-rcsu.yaml | 46 +++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 47 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/cix,sky1-usbss-rcsu.yaml > > diff --git a/Documentation/devicetree/bindings/usb/cix,sky1-usbss-rcsu.yaml b/Documentation/devicetree/bindings/usb/cix,sky1-usbss-rcsu.yaml > new file mode 100644 > index 000000000000..d0c54fd2cd5f > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/cix,sky1-usbss-rcsu.yaml > @@ -0,0 +1,46 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/usb/cix,sky1-usbss-rcsu.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: CIX Sky1 USBSSP RCSU system controller > + > +maintainers: > + - Hongliang Yang > + > +description: > + The CIX Sky1 USBSSP controllers integrate their per-instance glue > + registers (AXI bus attribute configuration and controller status) > + inside a shared RCSU register region in the SoC system control > + aperture. This binding describes that region as a syscon, so USBSSP In the description you describe hardware, not binding. > + glue nodes can reference their register offsets through the > + cix,usb-rcsu phandle (see cix,sky1-usbssp.yaml). Syscon is not a USB device. This is not supposed to be in USB. Best regards, Krzysztof