From nobody Sat Oct 18 02:17:41 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B74DC4332F for ; Wed, 19 Oct 2022 10:42:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229682AbiJSKmz (ORCPT ); Wed, 19 Oct 2022 06:42:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50584 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232468AbiJSKmG (ORCPT ); Wed, 19 Oct 2022 06:42:06 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9BF342E5C; Wed, 19 Oct 2022 03:19:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 1CDC7B823C4; Wed, 19 Oct 2022 08:54:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 90784C433D7; Wed, 19 Oct 2022 08:54:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666169689; bh=GSsaZEpH+o4AgtHli0o4QpxeGnOsysQIiAu1Xp/nbjM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cQI7QJX4PttgWTDPZI9BZTOe+gKC2iGKcA/odCHAjt+yVgaEmWg0ZGnCb0NC+BWB1 O2w86PEDPJmZDSL+7vDJpEE+TWqxUzFl6PYpgcK7yUXzSdyVtR9NPdjZ0upenj0IyV qhnTkVY05JAJRwrN+HDh81IY9uni+3AVfbICWH5o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Martin=20Povi=C5=A1er?= , Mark Brown , Sasha Levin Subject: [PATCH 6.0 370/862] ASoC: tas2764: Fix mute/unmute Date: Wed, 19 Oct 2022 10:27:37 +0200 Message-Id: <20221019083306.346284930@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221019083249.951566199@linuxfoundation.org> References: <20221019083249.951566199@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Martin Povi=C5=A1er [ Upstream commit f5ad67f13623548e5aff847f89700c178aaf2a98 ] Because the PWR_CTRL field is modeled as the power state of the DAC widget, and at the same time it is used to implement mute/unmute, we need some additional book-keeping to have the right end result no matter the sequence of calls. Without this fix, one permanently mutes an ongoing stream by toggling the associated speaker pin control. (This mirrors commit 1e5907bcb3a3 ("ASoC: tas2770: Fix handling of mute/unmute") which was a fix to the tas2770 driver.) Fixes: 827ed8a0fa50 ("ASoC: tas2764: Add the driver for the TAS2764") Signed-off-by: Martin Povi=C5=A1er Link: https://lore.kernel.org/r/20220825140241.53963-4-povik+lin@cutebit.org Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/codecs/tas2764.c | 57 +++++++++++++++++++++----------------- 1 file changed, 32 insertions(+), 25 deletions(-) diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c index f4ac6edefdc0..39902f77a2e0 100644 --- a/sound/soc/codecs/tas2764.c +++ b/sound/soc/codecs/tas2764.c @@ -34,6 +34,9 @@ struct tas2764_priv { =09 int v_sense_slot; int i_sense_slot; + + bool dac_powered; + bool unmuted; }; =20 static void tas2764_reset(struct tas2764_priv *tas2764) @@ -50,6 +53,26 @@ static void tas2764_reset(struct tas2764_priv *tas2764) usleep_range(1000, 2000); } =20 +static int tas2764_update_pwr_ctrl(struct tas2764_priv *tas2764) +{ + struct snd_soc_component *component =3D tas2764->component; + unsigned int val; + int ret; + + if (tas2764->dac_powered) + val =3D tas2764->unmuted ? + TAS2764_PWR_CTRL_ACTIVE : TAS2764_PWR_CTRL_MUTE; + else + val =3D TAS2764_PWR_CTRL_SHUTDOWN; + + ret =3D snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, + TAS2764_PWR_CTRL_MASK, val); + if (ret < 0) + return ret; + + return 0; +} + #ifdef CONFIG_PM static int tas2764_codec_suspend(struct snd_soc_component *component) { @@ -82,9 +105,7 @@ static int tas2764_codec_resume(struct snd_soc_component= *component) usleep_range(1000, 2000); } =20 - ret =3D snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_ACTIVE); + ret =3D tas2764_update_pwr_ctrl(tas2764); =20 if (ret < 0) return ret; @@ -118,14 +139,12 @@ static int tas2764_dac_event(struct snd_soc_dapm_widg= et *w, =20 switch (event) { case SND_SOC_DAPM_POST_PMU: - ret =3D snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_MUTE); + tas2764->dac_powered =3D true; + ret =3D tas2764_update_pwr_ctrl(tas2764); break; case SND_SOC_DAPM_PRE_PMD: - ret =3D snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_SHUTDOWN); + tas2764->dac_powered =3D false; + ret =3D tas2764_update_pwr_ctrl(tas2764); break; default: dev_err(tas2764->dev, "Unsupported event\n"); @@ -170,17 +189,11 @@ static const struct snd_soc_dapm_route tas2764_audio_= map[] =3D { =20 static int tas2764_mute(struct snd_soc_dai *dai, int mute, int direction) { - struct snd_soc_component *component =3D dai->component; - int ret; - - ret =3D snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - mute ? TAS2764_PWR_CTRL_MUTE : 0); + struct tas2764_priv *tas2764 =3D + snd_soc_component_get_drvdata(dai->component); =20 - if (ret < 0) - return ret; - - return 0; + tas2764->unmuted =3D !mute; + return tas2764_update_pwr_ctrl(tas2764); } =20 static int tas2764_set_bitwidth(struct tas2764_priv *tas2764, int bitwidth) @@ -494,12 +507,6 @@ static int tas2764_codec_probe(struct snd_soc_componen= t *component) if (ret < 0) return ret; =20 - ret =3D snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_MUTE); - if (ret < 0) - return ret; - return 0; } =20 --=20 2.35.1