From patchwork Mon Jul 11 11:48:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 12913415 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 A3381CCA47F for ; Mon, 11 Jul 2022 11:49:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231144AbiGKLtX (ORCPT ); Mon, 11 Jul 2022 07:49:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229585AbiGKLtQ (ORCPT ); Mon, 11 Jul 2022 07:49:16 -0400 Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39FB51115C; Mon, 11 Jul 2022 04:49:14 -0700 (PDT) Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26B8GhDu023853; 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 : mime-version : content-transfer-encoding : content-type; s=selector1; bh=IBdPZD/lgcjOqxf5WRf16r/XmqP10xUsJSLa25j+xfA=; b=q5Z5UPwAbRwN0wgwvmFjR8apZhP7Beg8MBFKZ3jAatKXy0zj0iG1LLJ+TpVCWXYGHJ4u x8YWumDgNLUd+JCBXNTKcwTsgDspuNjx8c+R5ZS7LfSJuRAyfKqoOym4gTLi4Jm5HDCX uM+2Imkm+gziVTW9vIzPp3fAb0fidJTdH7Sah4AcV1M3kLwCF4H3mF/gk16P6OTRSc8p yRdK0oYHRJgOu8pCoRdNv0XoDPeHRmSH6cgacwyO2qosMClnwbJY0ADTqXiwoTJD8IAk WUWmkz2jIbwFY0JD+GKeV29auv5EpKyv5JPVbnWX6DOVUkC9GK9LPF82niTg/CiKtV/I Gg== 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 3h6xtak3vt-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 E3D3C10002A; 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 DB69C21D384; Mon, 11 Jul 2022 13:48:46 +0200 (CEST) Received: from localhost (10.75.127.50) 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 0/4] usb: typec: ucsi: add support for stm32g0 Date: Mon, 11 Jul 2022 13:48:27 +0200 Message-ID: <20220711114831.25205-1-fabrice.gasnier@foss.st.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.75.127.50] 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 STM32G0 provides an integrated USB Type-C and power delivery interface [1]. It can be programmed with a firmware [2] to act as a PPM. Currently it implements UCSI protocol over I2C interface. A GPIO is used as an interrupt line. This series adds a driver to support it, including: - dt-bindings documentation - optional STM32G0 firmware control and update, over a secondary I2C address - power management [1] https://wiki.st.com/stm32mcu/wiki/Introduction_to_USB_Power_Delivery_with_STM32 [2] https://github.com/STMicroelectronics/x-cube-ucsi Changes in v2: - Krzysztof's review comments on dt-bindings: update commit message, use ports, use unevaluatedProperties: false for usb-connector schema, define maxItems for power-domains, adopt generic node names, remove quotes. - Christophe's comments on driver: use kmalloc instead of kzalloc Use-after-free of buf: directly print the offset Fabrice Gasnier (4): dt-bindings: usb: typec: add bindings for stm32g0 controller usb: typec: ucsi: stm32g0: add support for stm32g0 i2c controller usb: typec: ucsi: stm32g0: add bootloader support usb: typec: ucsi: stm32g0: add support for power management .../bindings/usb/st,typec-stm32g0.yaml | 90 ++ drivers/usb/typec/ucsi/Kconfig | 10 + drivers/usb/typec/ucsi/Makefile | 1 + drivers/usb/typec/ucsi/ucsi_stm32g0.c | 777 ++++++++++++++++++ 4 files changed, 878 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml create mode 100644 drivers/usb/typec/ucsi/ucsi_stm32g0.c