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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 4A483C43331 for ; Sun, 10 Nov 2019 02:53:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1432C22581 for ; Sun, 10 Nov 2019 02:53:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573354430; bh=/NIyCPyZeLdBwZL2f6/XlX7dwDQA8o09yF4PJxAG3WA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=IichDrvZXLGy0u3FxaXVDvPPv2Ygu+uV4IQp2/lQ1BQYIvvApQvlsy7snjMIwITcR c/4QchGtVWy/x+CvkboY/bS6pBCwQk220gcgE2x+RgRvaXOfh2KOYLf3MrUpcpDisT RDWlhXFK+78yxSyMNXHFih+tfTrE5fIspkZVHH5o= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726805AbfKJCvG (ORCPT ); Sat, 9 Nov 2019 21:51:06 -0500 Received: from mail.kernel.org ([198.145.29.99]:35350 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729877AbfKJCvF (ORCPT ); Sat, 9 Nov 2019 21:51:05 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C31C522794; Sun, 10 Nov 2019 02:51:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573354265; bh=/NIyCPyZeLdBwZL2f6/XlX7dwDQA8o09yF4PJxAG3WA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wK7VOwEMNMcPo3yQVH8MzWYB+SUVRdNywLnuF2IMpPatHL8MYqHv85TDBFUUsmGrj 0dvvXMKeOThX9SQHqAxxwbq0+CpPwSr/yyCIR2Y8NiIgoEBqzhRw6BaNe1vVWZFcni 6Kx3OmAtAe5sJHfrNdCSbnpWcizYfZt9Ms1Y6yHw= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Loic Poulain , Peter Chen , Sasha Levin , linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 14/40] usb: chipidea: Fix otg event handler Date: Sat, 9 Nov 2019 21:50:06 -0500 Message-Id: <20191110025032.827-14-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191110025032.827-1-sashal@kernel.org> References: <20191110025032.827-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Loic Poulain [ Upstream commit 59739131e0ca06db7560f9073fff2fb83f6bc2a5 ] At OTG work running time, it's possible that several events need to be addressed (e.g. ID and VBUS events). The current implementation handles only one event at a time which leads to ignoring the other one. Fix it. Signed-off-by: Loic Poulain Signed-off-by: Peter Chen Signed-off-by: Sasha Levin --- drivers/usb/chipidea/otg.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c index f36a1ac3bfbdf..b8650210be0f7 100644 --- a/drivers/usb/chipidea/otg.c +++ b/drivers/usb/chipidea/otg.c @@ -206,14 +206,17 @@ static void ci_otg_work(struct work_struct *work) } pm_runtime_get_sync(ci->dev); + if (ci->id_event) { ci->id_event = false; ci_handle_id_switch(ci); - } else if (ci->b_sess_valid_event) { + } + + if (ci->b_sess_valid_event) { ci->b_sess_valid_event = false; ci_handle_vbus_change(ci); - } else - dev_err(ci->dev, "unexpected event occurs at %s\n", __func__); + } + pm_runtime_put_sync(ci->dev); enable_irq(ci->irq); -- 2.20.1