From patchwork Fri Sep 3 09:28:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 1524162 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Uy3m96Mz; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4H1CCb1nZ3z9sPf for ; Fri, 3 Sep 2021 19:28:43 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348792AbhICJ3j (ORCPT ); Fri, 3 Sep 2021 05:29:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:32814 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348790AbhICJ3i (ORCPT ); Fri, 3 Sep 2021 05:29:38 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 018E961057; Fri, 3 Sep 2021 09:28:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1630661319; bh=6+JvWjTVgOTDBwrVSObaMWQo2XAQfFNK0dOeMLvKaug=; h=From:To:Cc:Subject:Date:From; b=Uy3m96MzrGtGwsY89cmOBo2OXjlVL2+xbDQSh0VqEPEyZ9d2ou3zHU4R86iJvOi5m Z7BZIctebFT9xzLGcHD0CSjxarAB2veWyspZ3QiHGjpDRTFHfAyy3zaxIZA5eS3cZe L3jfESag/MmlrLCZEjwdIcSygpjkS5zqd8BYNdWdELzLRlLw3xi3p8T8+cTWyK0BtE EZuXa8ZkHkaLMS1R/L6BHloELPLs7VrkMFn77U2yrS8Tv5INobp/eJOc0MmiQkk41n XEDH0caFzJqqbBxKlzsM2VK4WurLc/mNGR0Pl/s2lQ5ZOYKtKnUayELctF708CTOEu d2BMLd6Ria0pQ== Received: by mail.kernel.org with local (Exim 4.94.2) (envelope-from ) id 1mM5Uy-000zwP-T7; Fri, 03 Sep 2021 11:28:36 +0200 From: Mauro Carvalho Chehab To: Rob Herring , John Stultz Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/4] Make USB ports to work on HiKey960/970 Date: Fri, 3 Sep 2021 11:28:31 +0200 Message-Id: X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Sender: Mauro Carvalho Chehab Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Rob, It follows the patchset adding a DT schema needed to power on and to use the integrated USB hub found on HiKey 960 and Hikey 970 boards. Besides each board use a different chip for the hub, on both they're controlled the same way. Such boards come with an integrated 4-port USB hub on it, set on what it seems to be a non-standard way: on both implementations, the USB type-C port is used to detect the USB role. When in host mode, the 3.3V power supply (VDD33 pins) for the hub are disabled. That disables the USB I/O on type-A ports. When USB type-C is on device mode, the OTG is switched via a GPIO pin to device mode, and the hub is powered on. A Type-C power supply line is also controlled depending on the role. - The entire series which contains the remaining patches to support PCI and USB on HiKey970, and USB on HiKey960 is at: https://github.com/mchehab/linux/commits/linux-master The patches needed by the USB on HiKey970 were already merged upstream. So, the above branch applies on the top of Linux master branch. Tested on HiKey 960: $ lsusb Bus 002 Device 002: ID 0424:5734 Standard Microsystems Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 0424:2740 Standard Microsystems Corp. Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 001 Device 002: ID 0424:2734 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Tested on HiKey 970: $ lsusb Bus 002 Device 002: ID 0451:8140 Texas Instruments, Inc. TUSB8041 4-Port Hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Bus 001 Device 002: ID 0451:8142 Texas Instruments, Inc. TUSB8041 4-Port Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub v4: - Improved description at the DT schema; - Use just one compatible, as there's no difference between HiKey 960 and 970 with regards to how the hub should be controlled; - parse usb-role-switch property at the driver; - make the properties that depends on usb-role-switch optional. v3: - The examples at the dt-bindings were updated to reflect the actual DTS content and won't produce any warnings; - Added John Stultz SoB to Hikey960 DTS patch; - Added a patch for the mux hub driver for it to work with the newer schema; John Stultz (1): arm64: dts: hisilicon: Add usb mux hub for hikey960 Mauro Carvalho Chehab (2): misc: hisi_hikey_usb: change the DT schema arm64: dts: hisilicon: Add usb mux hub for hikey970 Yu Chen (1): dt-bindings: misc: add schema for USB hub on Kirin devices .../bindings/misc/hisilicon,hikey-usb.yaml | 87 +++++++++++++ .../boot/dts/hisilicon/hi3660-hikey960.dts | 35 +++++- .../boot/dts/hisilicon/hi3670-hikey970.dts | 23 ++++ drivers/misc/hisi_hikey_usb.c | 119 +++++++++--------- 4 files changed, 206 insertions(+), 58 deletions(-) create mode 100644 Documentation/devicetree/bindings/misc/hisilicon,hikey-usb.yaml