From patchwork Thu May 20 09:22:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 444034 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=-19.1 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 C152DC43461 for ; Thu, 20 May 2021 11:15:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A641760FEE for ; Thu, 20 May 2021 11:15:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235892AbhETLRE (ORCPT ); Thu, 20 May 2021 07:17:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:37898 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240629AbhETLPC (ORCPT ); Thu, 20 May 2021 07:15:02 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9489661D56; Thu, 20 May 2021 10:08:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621505329; bh=3FJsfvIKvb8jEni70x0lqGFtIs3Ws2pMVf7+0cM9FeM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nDVDgBfIqbgMFhfkcdc/GAYCGIxwm2tD8Lr/NKaaAX4lMdoSQCi7lrWh9bqvg5Mrq hgcGVcCxjAJQnA+si0v3+6uAlYLiSyIP2NO5rwKQ93CNj2HV7QGkli+jf9JKherOb7 d4zyux/VnyWZlt2pZ5YyTWyd8U+jFkoMkj4IwOBQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Fabian Vogt , Sasha Levin Subject: [PATCH 4.4 086/190] fotg210-udc: Mask GRP2 interrupts we dont handle Date: Thu, 20 May 2021 11:22:30 +0200 Message-Id: <20210520092105.038971180@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092102.149300807@linuxfoundation.org> References: <20210520092102.149300807@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 d0a9ce7d0635..491b04dd6db7 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -1033,6 +1033,12 @@ 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);