From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753935AbbJRCUf (ORCPT ); Sat, 17 Oct 2015 22:20:35 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:42142 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752941AbbJRCU3 (ORCPT ); Sat, 17 Oct 2015 22:20:29 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yitian Bu , Mark Brown Subject: [PATCH 4.2 099/258] ASoC: dwc: correct irq clear method Date: Sat, 17 Oct 2015 18:56:52 -0700 Message-Id: <20151018014734.887218417@linuxfoundation.org> X-Mailer: git-send-email 2.6.1 In-Reply-To: <20151018014729.976101177@linuxfoundation.org> References: <20151018014729.976101177@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yitian Bu commit 4873867e5f2bd90faad861dd94865099fc3140f3 upstream. from Designware I2S datasheet, tx/rx XRUN irq is cleared by reading register TOR/ROR, rather than by writing into them. Signed-off-by: Yitian Bu Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/dwc/designware_i2s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/sound/soc/dwc/designware_i2s.c +++ b/sound/soc/dwc/designware_i2s.c @@ -131,10 +131,10 @@ static inline void i2s_clear_irqs(struct if (stream == SNDRV_PCM_STREAM_PLAYBACK) { for (i = 0; i < 4; i++) - i2s_write_reg(dev->i2s_base, TOR(i), 0); + i2s_read_reg(dev->i2s_base, TOR(i)); } else { for (i = 0; i < 4; i++) - i2s_write_reg(dev->i2s_base, ROR(i), 0); + i2s_read_reg(dev->i2s_base, ROR(i)); } }