From patchwork Fri Mar 22 08:51:06 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 10865275 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 170EE14DE for ; Fri, 22 Mar 2019 08:51:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EF02B2A5B6 for ; Fri, 22 Mar 2019 08:51:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E29622A5C6; Fri, 22 Mar 2019 08:51:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 619AD2A5B6 for ; Fri, 22 Mar 2019 08:51:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727666AbfCVIvR (ORCPT ); Fri, 22 Mar 2019 04:51:17 -0400 Received: from mirror2.csie.ntu.edu.tw ([140.112.30.76]:41762 "EHLO wens.csie.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726667AbfCVIvR (ORCPT ); Fri, 22 Mar 2019 04:51:17 -0400 Received: by wens.csie.org (Postfix, from userid 1000) id BB9A75FCDD; Fri, 22 Mar 2019 16:51:15 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard , Greg Kroah-Hartman , Kishon Vijay Abraham I Cc: Chen-Yu Tsai , Grygorii Strashko , linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] ARM: sunxi: Fix USB host init fail on v5.1-rc1 Date: Fri, 22 Mar 2019 16:51:06 +0800 Message-Id: <20190322085108.18693-1-wens@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Chen-Yu Tsai Hi everyone, As previously reported [1], USB EHCI/OHCI hosts are broken on Allwinner SoCs on v5.1-rc1. This is partially triggered by commit b97a31348379 ("usb: core: comply to PHY framework"), and partially due to how the Allwinner USB PHY driver handles phy_set_mode for non-OTG PHYs. This series fixes this in both places. Patch 1 makes phy-sun4i-usb accept PHY_MODE_USB_HOST for non-OTG PHYs. Patch 2 makes the usb core fall back to setting the mode PHY_MODE_USB_HOST if set_mode with PHY_MODE_USB_HOST_SS fails. If that fails then the failure path is the same as before. This should make it so existing USB 3.0 drivers are affected. The patches don't have any dependencies on each other, and could go in through separate branches. However this affects usability of USB input devices and Ethernet dongles, I'd rather they go in sooner than later. Regards ChenYu [1] https://lkml.org/lkml/2019/3/18/74 Chen-Yu Tsai (2): phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs usb: core: Try generic PHY_MODE_USB_HOST if usb_phy_roothub_set_mode fails drivers/phy/allwinner/phy-sun4i-usb.c | 5 ++++- drivers/usb/core/hcd.c | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) Acked-by: Maxime Ripard