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 X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75180C001E4 for ; Mon, 12 Apr 2021 16:24:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5387061367 for ; Mon, 12 Apr 2021 16:24:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243791AbhDLQYW (ORCPT ); Mon, 12 Apr 2021 12:24:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:54878 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243371AbhDLQXc (ORCPT ); Mon, 12 Apr 2021 12:23:32 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id BC6D961241; Mon, 12 Apr 2021 16:23:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618244594; bh=Oq6q44LBvAj0lfK0gaUxdqUdFLMZsSm/bJnLTGpQ7g4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XK8kBZtM2VzFxNvYw2nbhz+pSx0KzVFpfituDVs2HpFfFfETxKzSCvrhjJm7YYu3Q kbtdgB50nEJS2CTOpBvbW2cPfD3+PV0Lkptph3H4qClw7ejwofqCM5KLGgpHuEa+hN mynxk4V3QsEB5jPFyggoLer7bqaJBOFFOADy5o7V2HFRYfLr+KaeYHBJcfknmwigTv 3O5Wlwil3AOrLmyK/XivFwBmnCm9qXTQIYcsXAd02Go06rP+AstU1xsib+Sd+b7vlu Y5YHTxhLjN0qnCwkHkgOpuDUzEP6+j3NgcplbDTUnBdzKrbWdIIP40Ix5HMxI87pAG 8lQUiVTGHCRJg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ryan Lee , Mark Brown , Sasha Levin , alsa-devel@alsa-project.org Subject: [PATCH AUTOSEL 5.11 14/51] ASoC: max98373: Added 30ms turn on/off time delay Date: Mon, 12 Apr 2021 12:22:19 -0400 Message-Id: <20210412162256.313524-14-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210412162256.313524-1-sashal@kernel.org> References: <20210412162256.313524-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ryan Lee [ Upstream commit 3a27875e91fb9c29de436199d20b33f9413aea77 ] Amp requires 10 ~ 30ms for the power ON and OFF. Added 30ms delay for stability. Signed-off-by: Ryan Lee Link: https://lore.kernel.org/r/20210325033555.29377-2-ryans.lee@maximintegrated.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/codecs/max98373.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 746c829312b8..1346a98ce8a1 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -28,11 +28,13 @@ static int max98373_dac_event(struct snd_soc_dapm_widget *w, regmap_update_bits(max98373->regmap, MAX98373_R20FF_GLOBAL_SHDN, MAX98373_GLOBAL_EN_MASK, 1); + usleep_range(30000, 31000); break; case SND_SOC_DAPM_POST_PMD: regmap_update_bits(max98373->regmap, MAX98373_R20FF_GLOBAL_SHDN, MAX98373_GLOBAL_EN_MASK, 0); + usleep_range(30000, 31000); max98373->tdm_mode = false; break; default: -- 2.30.2