From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:55770 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932325AbeB1POT (ORCPT ); Wed, 28 Feb 2018 10:14:19 -0500 Subject: Patch "ASoC: nau8825: fix issue that pop noise when start capture" has been added to the 4.9-stable tree To: abhijeet.kumar@intel.com, alexander.levin@microsoft.com, broonie@kernel.org, gregkh@linuxfoundation.org Cc: , From: Date: Wed, 28 Feb 2018 16:14:18 +0100 Message-ID: <1519830858196135@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ASoC: nau8825: fix issue that pop noise when start capture to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: asoc-nau8825-fix-issue-that-pop-noise-when-start-capture.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Wed Feb 28 16:13:29 CET 2018 From: Abhijeet Kumar Date: Tue, 12 Dec 2017 00:40:25 +0530 Subject: ASoC: nau8825: fix issue that pop noise when start capture From: Abhijeet Kumar [ Upstream commit d070f7c703ef26e3db613f24206823f916272fc6 ] In skylake platform, we hear a loud pop noise(0 dB) at start of audio capture power up sequence. This patch removes the pop noise from the recording by adding a delay before enabling ADC. Signed-off-by: Abhijeet Kumar Signed-off-by: Mark Brown Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/nau8825.c | 1 + 1 file changed, 1 insertion(+) --- a/sound/soc/codecs/nau8825.c +++ b/sound/soc/codecs/nau8825.c @@ -882,6 +882,7 @@ static int nau8825_adc_event(struct snd_ switch (event) { case SND_SOC_DAPM_POST_PMU: + msleep(125); regmap_update_bits(nau8825->regmap, NAU8825_REG_ENA_CTRL, NAU8825_ENABLE_ADC, NAU8825_ENABLE_ADC); break; Patches currently in stable-queue which might be from abhijeet.kumar@intel.com are queue-4.9/asoc-nau8825-fix-issue-that-pop-noise-when-start-capture.patch