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 44932C17443 for ; Sun, 10 Nov 2019 03:05:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0D1E1208C3 for ; Sun, 10 Nov 2019 03:05:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573355109; bh=ChU4/sQIlhrMtWXNKZFawHzXhtYBs37P5LZKj8KiEgw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wS7KREbPui0NvDdIjiYnqXqj6MFn0zhZmYzWJ/o/HBaoEhYROd8Zbom1gXxEKt3ZG TXNmlFIrBuHqp0mwxkdl38Gccuu/a5wbEV6ieH2Nqwy44CLz5IFJ7YPNBKTeL0tZ5+ QQ8T3N/n3s0Vusj1H0S1NDgGhrAgOoHxB8KbHdY4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729514AbfKJDFH (ORCPT ); Sat, 9 Nov 2019 22:05:07 -0500 Received: from mail.kernel.org ([198.145.29.99]:50638 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729127AbfKJCql (ORCPT ); Sat, 9 Nov 2019 21:46:41 -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 C7B4921D7E; Sun, 10 Nov 2019 02:46:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573354000; bh=ChU4/sQIlhrMtWXNKZFawHzXhtYBs37P5LZKj8KiEgw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=M4oJpsZ3JQBrZe5F1fbIGfzwUgrjQurKpv1BiwC5IuI1ijTmFDDPNMy5jazFRMt/4 tQKC2xuZNryK7w/eK4eFSaMM63lBpZbUQzNVPXMw9KQJ1dugC3mhrpKP4Tl+rNxCPw HHDmuJ5S7Qbxi+tkY0rNWhfXsWsp/Ng4mlw0th4Q= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Nicolas Adell , Peter Chen , Sasha Levin , linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 027/109] usb: chipidea: imx: enable OTG overcurrent in case USB subsystem is already started Date: Sat, 9 Nov 2019 21:44:19 -0500 Message-Id: <20191110024541.31567-27-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191110024541.31567-1-sashal@kernel.org> References: <20191110024541.31567-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nicolas Adell [ Upstream commit 1dedbdf2bbb1ede8d96f35f9845ecae179dc1988 ] When initializing the USB subsystem before starting the kernel, OTG overcurrent detection is disabled. In case the OTG polarity of overcurrent is low active, the overcurrent detection is never enabled again and events cannot be reported as expected. Because imx usb overcurrent polarity is low active by default, only detection needs to be enable in usbmisc init function. Signed-off-by: Nicolas Adell Signed-off-by: Peter Chen Signed-off-by: Sasha Levin --- drivers/usb/chipidea/usbmisc_imx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 9f4a0185dd609..b7477fd4443a3 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -343,6 +343,8 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data) } else if (data->oc_polarity == 1) { /* High active */ reg &= ~(MX6_BM_OVER_CUR_DIS | MX6_BM_OVER_CUR_POLARITY); + } else { + reg &= ~(MX6_BM_OVER_CUR_DIS); } writel(reg, usbmisc->base + data->index * 4); -- 2.20.1