From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A3F1C433B4 for ; Fri, 9 Apr 2021 13:17:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EADC061106 for ; Fri, 9 Apr 2021 13:17:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231946AbhDINRe (ORCPT ); Fri, 9 Apr 2021 09:17:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:56106 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231127AbhDINRd (ORCPT ); Fri, 9 Apr 2021 09:17:33 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 75D43610FB; Fri, 9 Apr 2021 13:17:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617974240; bh=mj9ng5mnlUJ2y/Nx/U3q6xwvJCeCc+8BQWG7PVb6iMs=; h=Subject:To:From:Date:From; b=1DjxatlGdCNb9UuJCFjf+Bya5Xz8YOF2nUpto19DN2veo/MNxsG0k1rnzYVsqe3n0 bJ+ztNz1mZqYI9dKb3QgB9BaCryoz3SZn7An5pW8IKIemGeOOWOqNyERqvTy8zOHIt 2R68BmflEAEvo34EuPpmXRWarkF5pHHCQP+D6zAU= Subject: patch "usb: dwc2: Fix session request interrupt handler" added to usb-testing To: Arthur.Petrosyan@synopsys.com, Minas.Harutyunyan@synopsys.com, gregkh@linuxfoundation.org, stable@vger.kernel.org From: Date: Fri, 09 Apr 2021 15:17:00 +0200 Message-ID: <161797422020658@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled usb: dwc2: Fix session request interrupt handler to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From 42b32b164acecd850edef010915a02418345a033 Mon Sep 17 00:00:00 2001 From: Artur Petrosyan Date: Thu, 8 Apr 2021 13:45:49 +0400 Subject: usb: dwc2: Fix session request interrupt handler According to programming guide in host mode, port power must be turned on in session request interrupt handlers. Fixes: 21795c826a45 ("usb: dwc2: exit hibernation on session request") Cc: Acked-by: Minas Harutyunyan Signed-off-by: Artur Petrosyan Link: https://lore.kernel.org/r/20210408094550.75484A0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc2/core_intr.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 0a7f9330907f..8c0152b514be 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -307,6 +307,7 @@ static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg) static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg) { int ret; + u32 hprt0; /* Clear interrupt */ dwc2_writel(hsotg, GINTSTS_SESSREQINT, GINTSTS); @@ -328,6 +329,13 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg) * established */ dwc2_hsotg_disconnect(hsotg); + } else { + /* Turn on the port power bit. */ + hprt0 = dwc2_read_hprt0(hsotg); + hprt0 |= HPRT0_PWR; + dwc2_writel(hsotg, hprt0, HPRT0); + /* Connect hcd after port power is set. */ + dwc2_hcd_connect(hsotg); } } -- 2.31.1