From patchwork Mon Jul 11 11:48:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 12913418 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D179DC433EF for ; Mon, 11 Jul 2022 11:49:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231252AbiGKLt2 (ORCPT ); Mon, 11 Jul 2022 07:49:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229877AbiGKLtR (ORCPT ); Mon, 11 Jul 2022 07:49:17 -0400 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A2B5A11822; Mon, 11 Jul 2022 04:49:15 -0700 (PDT) Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26B7OwU6002052; Mon, 11 Jul 2022 13:48:48 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=selector1; bh=jHypv5E2Ntg6iXVsvy1Ne3ieQ+rIz+C8sBC7FRD48UU=; b=CfwGKCFb8FhRCNmuGS7ezjPjNOM75gDBRANc/Q6vr5It5rRWY4t0/UsUdPVQ4J7oAin4 NxaaMYXpMF+MeD+Ts/D4plfFxeDrnxcss5Hr9/ymnLzWac6dcy9qbKeVoZmAQXBWeFwv AQenA8JQjhjPQMK+Ul7xIDURGijz02m/Td41KblcSVXPE2d7CjRNNAXkOny5QOwkrXKo ZfknCI65agd+H1j7/YXau6EEueXucJqnsbX46+Iq7siI1d0G2LBFzhfw86dsYsSgUjn0 Se0TD/LeEG9T4k7wrK6LmubiA2HwrD4qDPCh8xvjGdLiS0T891vF0VgZc4441inlGdhJ hg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3h71122phb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 11 Jul 2022 13:48:48 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id E4166100034; Mon, 11 Jul 2022 13:48:46 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node2.st.com [10.75.129.70]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id CE46F21D383; Mon, 11 Jul 2022 13:48:46 +0200 (CEST) Received: from localhost (10.75.127.49) by SHFDAG1NODE2.st.com (10.75.129.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Mon, 11 Jul 2022 13:48:46 +0200 From: Fabrice Gasnier To: , , , CC: , , , , , , , Subject: [PATCH v2 1/4] dt-bindings: usb: typec: add bindings for stm32g0 controller Date: Mon, 11 Jul 2022 13:48:28 +0200 Message-ID: <20220711114831.25205-2-fabrice.gasnier@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220711114831.25205-1-fabrice.gasnier@foss.st.com> References: <20220711114831.25205-1-fabrice.gasnier@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SHFDAG1NODE2.st.com (10.75.129.70) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-11_17,2022-07-08_01,2022-06-22_01 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add DT schema documentation for the STM32G0 Type-C PD (Power Delivery) controller. STM32G0 provides an integrated USB Type-C and power delivery interface. It can be programmed with a firmware to handle UCSI protocol over I2C interface. A GPIO is used as an interrupt line. It may be used as a wakeup source, so use optional "wakeup-source" and "power-domains" properties to support wakeup. Signed-off-by: Fabrice Gasnier --- Changes in v2: - Krzysztof's review comments: update commit message, use ports, use unevaluatedProperties: false for usb-connector schema, define maxItems for power-domains, adopt generic node names, remove quotes --- .../bindings/usb/st,typec-stm32g0.yaml | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml diff --git a/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml b/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml new file mode 100644 index 0000000000000..7b3a2c2124e38 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/st,typec-stm32g0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectronics STM32G0 USB Type-C PD controller + +description: | + The STM32G0 MCU can be programmed to control Type-C connector(s) through I2C + typically using the UCSI protocol over I2C, with a dedicated alert + (interrupt) pin. + +maintainers: + - Fabrice Gasnier + +properties: + compatible: + const: st,stm32g0-typec + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + connector: + type: object + $ref: /schemas/connector/usb-connector.yaml# + unevaluatedProperties: false + + firmware-name: + description: | + Should contain the name of the default firmware image + file located on the firmware search path + + wakeup-source: true + + power-domains: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + typec@53 { + compatible = "st,stm32g0-typec"; + reg = <0x53>; + /* Alert pin on GPIO PE12 */ + interrupts = <12 IRQ_TYPE_EDGE_FALLING>; + interrupt-parent = <&gpioe>; + + /* Example with one type-C connector */ + connector { + compatible = "usb-c-connector"; + label = "USB-C"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + con_usb_c_ep: endpoint { + remote-endpoint = <&usb_ep>; + }; + }; + }; + }; + }; + }; + + usb { + usb-role-switch; + port { + usb_ep: endpoint { + remote-endpoint = <&con_usb_c_ep>; + }; + }; + }; +...