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 C770AC433EF for ; Mon, 15 Nov 2021 23:27:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B2022619EC for ; Mon, 15 Nov 2021 23:27:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353928AbhKOXaI (ORCPT ); Mon, 15 Nov 2021 18:30:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:44638 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245200AbhKOTTs (ORCPT ); Mon, 15 Nov 2021 14:19:48 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 58ADC611C3; Mon, 15 Nov 2021 18:30:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637001013; bh=VHv/jATYzon7aBwA0JSFUaRtQnEp0JWl/hUXN5QxjFM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gr/MOlLZmNyz85r8RVPAm9/Gaa1gxgGlec57tZFTL7mk4RS4Y8wzezDOnX/UfMlFW Ef1q0bWTm+6vYd5rMFgjCZbuamRaaxb13d/7SjDTJPdTBhps3xzJ3+eApZthktHSQJ cnZ8081R/OzRyWKIy1SBf6OGT5X6IBFLbx6yxANY= 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 5.15 028/917] media: ite-cir: IR receiver stop working after receive overflow Date: Mon, 15 Nov 2021 17:52:03 +0100 Message-Id: <20211115165429.680524149@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165428.722074685@linuxfoundation.org> References: <20211115165428.722074685@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 @@ -242,7 +242,7 @@ 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, ITE_RX_FIFO_LEN);