From nobody Fri Dec 19 00:53:38 2025 Received: from mail-oa1-f73.google.com (mail-oa1-f73.google.com [209.85.160.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CED2D21ABDD for ; Mon, 6 Oct 2025 23:21:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759792918; cv=none; b=MgrFw4XFGReyihYe6xt46zN2Um7eq0WvHeNER9Eloe8BdTSmt9BmKrZGmSfYiY/3Tgm4xTd1v0a02yPi25riV04t3Smoog7bXj/fHMo7DhFJiMDu+v2L0QqLB0LaV0g+Ra7ymtEIQVEhaDNdfsxOjXTV/T0WAf8xoAiJESBxm08= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759792918; c=relaxed/simple; bh=UViTHWvwXuqcjmgVhoJDzPkLVSAoP6S0yomom/AscBs=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=ZhOhDCXscnep0vSK4VvpsV2/92MDCelWZGuaEpxe3wsGKpwsePNOs0nglif7XoKmEqZjIss63WibL8Av/s8cPAl1GQKjJt2/t2QqdVFMrqPhqxmxHGmZCoRvXeHHVJpUE2GtjlBhULO2xqstZ3M+e0wzMpvKQDfJ1LiagTcRnew= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--royluo.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=dARvVH29; arc=none smtp.client-ip=209.85.160.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--royluo.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="dARvVH29" Received: by mail-oa1-f73.google.com with SMTP id 586e51a60fabf-36d429b919cso6990497fac.0 for ; Mon, 06 Oct 2025 16:21:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1759792916; x=1760397716; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=EoPxQXwQ5XFM/6+OUgDgFqK1K2D8fPLQvjVzNWUSG1k=; b=dARvVH292hn74XaNx57yl9m1Qvoz6SGvtXKIyXc5ToyQtVJ8g4w4amNTkxaQWbqumP w7okBvWM0J7d8jihA8bYEr6DVBdGaguMRyrOcsysSHGsfDzUKOgYc7zAMHCnR2M5Kuck WRpvF6rT8ZsZNobFrlOX5MMfsBLOpqcYWvNOg2PANzeNaanMvNYXEYjivxytVwx3jfxp jdWOJ/3l+erE3wuYi886QGoLl5SROapItko8hgAX/Jcw8qZGKIe1wdUVWwu858Vvrkbt uwIf1x+deKaKIzNf97N8+zf0MszhekUAMzS+S7BWK9X7itbn7zy7KLpVWTp6IuLWXUqY 10UA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759792916; x=1760397716; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=EoPxQXwQ5XFM/6+OUgDgFqK1K2D8fPLQvjVzNWUSG1k=; b=g17z0fiMv+le7G0NpJbmnDRL9E0PO67c3zzfb8vN0PX41SwML8zNv/g6il+nQZwXaU 0wvxKQDWg6l0VPuCMnPxOnWNchH9srhA8HnVZSvooevScoozF8P0T7ea+EA3ALO/AztK xAGq3EaIKxQWbHZiWD720+uYzDYJgREb8s858rJS/URXw9mZOKTS/kJbS26gHYDrFnSy vyfWpNsLqPZxyI9p7PzuPCbQ/Vcscr+VYfcAU4uP+fMzZogo1pJNODXK+Xc0sxnDEhTY 20/8wxkBM7E2mpS8rMRcWX3xOf7G1TCWmZKrNQjrkcG+8cSKT9OvnI00sg56Pr/2vVE2 TPPA== X-Forwarded-Encrypted: i=1; AJvYcCVGBs59Z7rTO4ihcBFS5Kr20TJ9jQylYrB6UVjK9Tq9J+upY/U5OPk1+GVjphaODjeMtnWQtIUsLFp+OGY=@vger.kernel.org X-Gm-Message-State: AOJu0Yy5zBhftuvbnOh/MEJ8rVi8OPJHxVby/WCevWOz4KKfKMFazONv po7omN5JESXFnAUbQeXDfJkVT9Yds+it85z5IExpqWKd38q2iEzQx5H8Vdd5mR4XVxaWmBto76p FLW/jsw== X-Google-Smtp-Source: AGHT+IHuvSLSe+7hqIjhfAafsJ/Rg53JuStEyumsyKGui3lJI0P+5OWjCcwfbXPLbHA2q9kxTGLsRs1awBo= X-Received: from oala19.prod.google.com ([2002:a05:6870:b153:b0:359:cc61:b60e]) (user=royluo job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6870:959a:b0:345:bbd6:b0a1 with SMTP id 586e51a60fabf-3b10283e13cmr8039798fac.30.1759792915730; Mon, 06 Oct 2025 16:21:55 -0700 (PDT) Date: Mon, 6 Oct 2025 23:21:23 +0000 In-Reply-To: <20251006232125.1833979-1-royluo@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251006232125.1833979-1-royluo@google.com> X-Mailer: git-send-email 2.51.0.618.g983fd99d29-goog Message-ID: <20251006232125.1833979-3-royluo@google.com> Subject: [PATCH v1 2/4] dt-bindings: usb: dwc3: Add Google SoC DWC3 USB From: Roy Luo To: Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Thinh Nguyen , Philipp Zabel , Peter Griffin , "=?UTF-8?q?Andr=C3=A9=20Draszik?=" , Tudor Ambarus Cc: Joy Chakraborty , Naveen Kumar , Roy Luo , linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Document the DWC3 USB bindings for Google Tensor SoCs. Signed-off-by: Roy Luo --- .../bindings/usb/google,snps-dwc3.yaml | 144 ++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/google,snps-dwc3.= yaml diff --git a/Documentation/devicetree/bindings/usb/google,snps-dwc3.yaml b/= Documentation/devicetree/bindings/usb/google,snps-dwc3.yaml new file mode 100644 index 000000000000..3e8bcc0c2cef --- /dev/null +++ b/Documentation/devicetree/bindings/usb/google,snps-dwc3.yaml @@ -0,0 +1,144 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (c) 2025, Google LLC +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/google,snps-dwc3.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Google DWC3 USB SoC Controller + +maintainers: + - Roy Luo + +description: + Describes the Google DWC3 USB block, based on Synopsys DWC3 IP. + +properties: + compatible: + items: + - enum: + - google,lga-dwc3 + - const: google,snps-dwc3 + + reg: + minItems: 3 + maxItems: 3 + + reg-names: + description: | + The following memory regions must present: + - dwc3_core: Core DWC3 IP registers. + - host_cfg_csr: Hibernation control registers. + - usbint_csr: Hibernation interrupt registers. + items: + - const: dwc3_core + - const: host_cfg_csr + - const: usbint_csr + + interrupts: + minItems: 3 + maxItems: 3 + + interrupt-names: + description: | + The following interrupts must present: + - dwc_usb3: Core DWC3 interrupt. + - hs_pme_irq: High speed remote wakeup interrupt for hibernation. + - ss_pme_irq: Super speed remote wakeup interrupt for hibernation. + items: + - const: dwc_usb3 + - const: hs_pme_irq + - const: ss_pme_irq + + clocks: + minItems: 3 + maxItems: 3 + + clock-names: + minItems: 3 + maxItems: 3 + + resets: + minItems: 5 + maxItems: 5 + + reset-names: + items: + - const: usbc_non_sticky + - const: usbc_sticky + - const: usb_drd_bus + - const: u2phy_apb + - const: usb_top_csr + + power-domains: + minItems: 2 + maxItems: 2 + + power-domain-names: + description: | + The following power domain must present: + - usb_psw_pd: The child power domain of usb_top_pd. Turning it o= n puts the controller + into full power state, turning it off puts the co= ntroller into power + gated state. + - usb_top_pd: The parent power domain of usb_psw_pd. Turning it = on puts the controller + into power gated state, turning it off completely= shuts off the + controller. + items: + - const: usb_psw_pd + - const: usb_top_pd + + iommus: + maxItems: 1 + +required: + - compatible + - reg + - reg-names + - interrupts + - interrupt-names + - clocks + - resets + - reset-names + - power-domains + - power-domain-names + +allOf: + - $ref: snps,dwc3-common.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + #include + soc { + #address-cells =3D <2>; + #size-cells =3D <2>; + + usb@c400000 { + compatible =3D "google,lga-dwc3", "google,snps-dwc3"; + reg =3D <0 0x0c400000 0 0xd060>, <0 0x0c450000 0 0x14>, <0 0x= 0c450020 0 0x8>; + reg-names =3D "dwc3_core", "host_cfg_csr", "usbint_csr"; + interrupts =3D , + , + ; + interrupt-names =3D "dwc_usb3", "hs_pme_irq", "ss_pme_irq"; + clocks =3D <&hsion_usbc_non_sticky_clk>, <&hsion_usbc_sticky_= clk>, + <&hsion_u2phy_apb_clk>; + clock-names =3D "usbc_non_sticky", "usbc_sticky", "u2phy_apb"; + resets =3D <&hsion_resets_usbc_non_sticky>, <&hsion_resets_usb= c_sticky>, + <&hsion_resets_usb_drd_bus>, <&hsion_resets_u2phy_apb= >, + <&hsion_resets_usb_top_csr>; + reset-names =3D "usbc_non_sticky", "usbc_sticky", + "usb_drd_bus", "u2phy_apb", + "usb_top_csr"; + power-domains =3D <&hsio_n_usb_psw_pd>, <&hsio_n_usb_pd>; + power-domain-names =3D "usb_psw_pd", "usb_top_pd"; + phys =3D <&usb_phy 0>; + phy-names =3D "usb2-phy"; + snps,quirk-frame-length-adjustment =3D <0x20>; + snps,gfladj-refclk-lpm-sel-quirk; + snps,incr-burst-type-adjustment =3D <4>; + }; + }; +... --=20 2.51.0.618.g983fd99d29-goog