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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D15D9C433EF for ; Mon, 15 Nov 2021 17:09:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BA69D61C12 for ; Mon, 15 Nov 2021 17:09:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231336AbhKORMo (ORCPT ); Mon, 15 Nov 2021 12:12:44 -0500 Received: from mail.kernel.org ([198.145.29.99]:37988 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232327AbhKORLU (ORCPT ); Mon, 15 Nov 2021 12:11:20 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id EBEAD610CA; Mon, 15 Nov 2021 17:08:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1636996104; bh=gbFNswM4XxDHV0nCtFOABSphPr8MmghwTuyMXuO7gUQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ksZCKk5DQDloAHxBkEq8RHUxZdg/9fB+T3gGXQ8RwqT4vYwN3Z6aTVb8XWr/kHbc5 p8trmA1aHZWnAZmfyFT+X3YZmzShXRMUnFxGJEW2VtmWcBpLNvMS00wK7gDcTPoA4j pXKo7QFNHc+iPqp72hGue/ofMiWNrJ73IpuEpJCU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bryan Pass , Sean Young , Mauro Carvalho Chehab Subject: [PATCH 5.4 018/355] media: ite-cir: IR receiver stop working after receive overflow Date: Mon, 15 Nov 2021 17:59:02 +0100 Message-Id: <20211115165314.138215336@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165313.549179499@linuxfoundation.org> References: <20211115165313.549179499@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sean Young commit fdc881783099c6343921ff017450831c8766d12a upstream. On an Intel NUC6iSYK, no IR is reported after a receive overflow. When a receiver overflow occurs, this condition is only cleared by reading the fifo. Make sure we read anything in the fifo. Fixes: 28c7afb07ccf ("media: ite-cir: check for receive overflow") Suggested-by: Bryan Pass Tested-by: Bryan Pass Cc: stable@vger.kernel.org> Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/rc/ite-cir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/rc/ite-cir.c +++ b/drivers/media/rc/ite-cir.c @@ -283,7 +283,7 @@ static irqreturn_t ite_cir_isr(int irq, } /* check for the receive interrupt */ - if (iflags & ITE_IRQ_RX_FIFO) { + if (iflags & (ITE_IRQ_RX_FIFO | ITE_IRQ_RX_FIFO_OVERRUN)) { /* read the FIFO bytes */ rx_bytes = dev->params.get_rx_bytes(dev, rx_buf,