From patchwork Wed May 12 14:47:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 437198 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 AB02CC433B4 for ; Wed, 12 May 2021 14:59:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D24861433 for ; Wed, 12 May 2021 14:59:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232169AbhELPAU (ORCPT ); Wed, 12 May 2021 11:00:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:46434 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231373AbhELO61 (ORCPT ); Wed, 12 May 2021 10:58:27 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 50A6F61438; Wed, 12 May 2021 14:56:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620831366; bh=gDHr0Bow97m9Fu/6THO3/RCY4+8E9v28DICv6HS0IXs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=q3o3mrywcQfrUtyC9faY1S9weP6j066y/0UgcJnieQ8OSkCy0rjLF0Wki7vfMMHvd 4bUDtYFSoBCxmG5VKbKdzEkxBrhhZjOkZFHFx5QXY6KCUr/ZRVV8qUY4zG/gcLC+5/ M1eI1vHy3Hd4ybZBch6Tg2ksLoXgWbR8OHrY4h7w= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Fabian Vogt , Sasha Levin Subject: [PATCH 5.4 092/244] fotg210-udc: Mask GRP2 interrupts we dont handle Date: Wed, 12 May 2021 16:47:43 +0200 Message-Id: <20210512144745.963423883@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144743.039977287@linuxfoundation.org> References: <20210512144743.039977287@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Fabian Vogt [ Upstream commit 9aee3a23d6455200702f3a57e731fa11e8408667 ] Currently it leaves unhandled interrupts unmasked, but those are never acked. In the case of a "device idle" interrupt, this leads to an effectively frozen system until plugging it in. Fixes: b84a8dee23fd ("usb: gadget: add Faraday fotg210_udc driver") Signed-off-by: Fabian Vogt Link: https://lore.kernel.org/r/20210324141115.9384-5-fabian@ritter-vogt.de Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/gadget/udc/fotg210-udc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index b2c75c8ca3d7..c287dc7d430f 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -1026,6 +1026,12 @@ static void fotg210_init(struct fotg210_udc *fotg210) value &= ~DMCR_GLINT_EN; iowrite32(value, fotg210->reg + FOTG210_DMCR); + /* enable only grp2 irqs we handle */ + iowrite32(~(DISGR2_DMA_ERROR | DISGR2_RX0BYTE_INT | DISGR2_TX0BYTE_INT + | DISGR2_ISO_SEQ_ABORT_INT | DISGR2_ISO_SEQ_ERR_INT + | DISGR2_RESM_INT | DISGR2_SUSP_INT | DISGR2_USBRST_INT), + fotg210->reg + FOTG210_DMISGR2); + /* disable all fifo interrupt */ iowrite32(~(u32)0, fotg210->reg + FOTG210_DMISGR1);