From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763620AbcINOG0 (ORCPT ); Wed, 14 Sep 2016 10:06:26 -0400 Received: from regular1.263xmail.com ([211.150.99.137]:49090 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762054AbcINOGX (ORCPT ); Wed, 14 Sep 2016 10:06:23 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED4: 1 X-RL-SENDER: zhengxing@rock-chips.com X-FST-TO: linux-rockchip@lists.infradead.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: zhengxing@rock-chips.com X-UNIQUE-TAG: <5f6cab494545a05f1e74bb99757547db> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Xing Zheng To: linux-rockchip@lists.infradead.org, Adam.Thomson.Opensource@diasemi.com Cc: cychiang@google.com, heiko@sntech.de, smbarber@google.com, hychao@google.com, dianders@google.com, Hsin-Yu Chao , Xing Zheng , Support Opensource , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH] ASoC: da7219: software reset codec at probe Date: Wed, 14 Sep 2016 22:06:00 +0800 Message-Id: <1473861960-7596-1-git-send-email-zhengxing@rock-chips.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hsin-Yu Chao On some platform da7219 codec has persistent power across reboot so it doesn't reset and cause abnormal jack detection. Workaround this issue by doing software reset at probe. Signed-off-by: Hsin-Yu Chao Signed-off-by: Xing Zheng --- sound/soc/codecs/da7219.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index 737e914..9d08c11 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1941,6 +1941,14 @@ static int da7219_i2c_probe(struct i2c_client *i2c, return ret; } + /* Software reset codec. */ + regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, 0); + regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL, + DA7219_CIF_REG_SOFT_RESET_MASK, 0); + regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE, + DA7219_SYSTEM_ACTIVE_MASK, 0); + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_da7219, &da7219_dai, 1); if (ret < 0) { -- 1.9.1