From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sascha Hauer , Markus Pargmann , Mark Brown , Ben Hutchings , Weng Meiling Subject: [PATCH 3.4 79/99] ASoC: imx-ssi: Fix occasional AC97 reset failure Date: Fri, 7 Mar 2014 17:08:15 -0800 Message-Id: <20140308010614.123986025@linuxfoundation.org> In-Reply-To: <20140308010611.468206150@linuxfoundation.org> References: <20140308010611.468206150@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sascha Hauer commit b6e51600f4e983e757b1b6942becaa1ae7d82e67 upstream. Signed-off-by: Sascha Hauer Signed-off-by: Markus Pargmann Signed-off-by: Mark Brown [bwh: Backported to 3.2: adjust filename] Signed-off-by: Ben Hutchings Cc: Weng Meiling Signed-off-by: Greg Kroah-Hartman --- sound/soc/imx/imx-ssi.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/sound/soc/imx/imx-ssi.c +++ b/sound/soc/imx/imx-ssi.c @@ -497,6 +497,8 @@ static void imx_ssi_ac97_reset(struct sn if (imx_ssi->ac97_reset) imx_ssi->ac97_reset(ac97); + /* First read sometimes fails, do a dummy read */ + imx_ssi_ac97_read(ac97, 0); } static void imx_ssi_ac97_warm_reset(struct snd_ac97 *ac97) @@ -505,6 +507,9 @@ static void imx_ssi_ac97_warm_reset(stru if (imx_ssi->ac97_warm_reset) imx_ssi->ac97_warm_reset(ac97); + + /* First read sometimes fails, do a dummy read */ + imx_ssi_ac97_read(ac97, 0); } struct snd_ac97_bus_ops soc_ac97_ops = {