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 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 CCD59C433B4 for ; Sat, 10 Apr 2021 05:58:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9EBE861184 for ; Sat, 10 Apr 2021 05:58:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229537AbhDJF6h (ORCPT ); Sat, 10 Apr 2021 01:58:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:44458 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229464AbhDJF6h (ORCPT ); Sat, 10 Apr 2021 01:58:37 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 54C3A61028; Sat, 10 Apr 2021 05:58:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1618034303; bh=zEBwKAJfcZHqMVIwGX6RmLPm8qdprGVkWUqDSsuP4P0=; h=Subject:To:From:Date:From; b=bjScdwSc654QI4sdlgm71cYn3rWVA5YipqoopgL9q2ENEgUloTGPHmkljmNSozhGk AXvdy9PPlm3mvHNdnn0AOQI/cbkz9XUVTkGBh33o3Qfc+R7RxHpRzuCT6C99fDuhaA FDfcJZh4oHw6vE5aqbijTNUY9kTI2m0kXfUXSnSA= Subject: patch "usb: dwc2: Fix session request interrupt handler" added to usb-next To: Arthur.Petrosyan@synopsys.com, Minas.Harutyunyan@synopsys.com, gregkh@linuxfoundation.org, stable@vger.kernel.org From: Date: Sat, 10 Apr 2021 07:58:03 +0200 Message-ID: <16180342838829@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-next 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 also be merged in the next major kernel release during the merge window. 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