From patchwork Mon Aug 8 14:12:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Martin_Povi=C5=A1er?= X-Patchwork-Id: 596235 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C989EC00140 for ; Mon, 8 Aug 2022 14:15:49 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E4B89886; Mon, 8 Aug 2022 16:14:57 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E4B89886 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1659968148; bh=NeUx+pSo12xPra5B6qJ2I6DGFGzYl2ySN/qXHG/DyXQ=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=gB9GM1BW8ue69CQtQEsUMvJqessPYs+2sAFT5cjgsjdOlBPW7wFzFzMwipcqQ64bc Ky03NKAfoWgTUv3/DHgfmigy8m8wE1R7Mc41fDIudZnve2xuxNMo0g1dkGgIy1A1XB BmsKEY5+Dcw3PSj63sz4NhodmRMIHkKZUia6VtI8= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 1B5F5F80544; Mon, 8 Aug 2022 16:14:04 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id ACDB8F80510; Mon, 8 Aug 2022 16:14:01 +0200 (CEST) Received: from hutie.ust.cz (unknown [IPv6:2a03:3b40:fe:f0::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 88B2CF804B1 for ; Mon, 8 Aug 2022 16:13:50 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 88B2CF804B1 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=cutebit.org header.i=@cutebit.org header.b="GrHmrpuW" From: =?utf-8?q?Martin_Povi=C5=A1er?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cutebit.org; s=mail; t=1659968029; bh=Twygo1GqjUrP9qhVckfjeeq1VoZv2+ub4qhDvapf23c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=GrHmrpuW2i2/ft0rjPTmoSjkHqyKouNA8vrAj3KKl/i+zGvkV37Yl0or9Vb65+mUM 5mdKN8yHVaYSWFooK5LA+uMoujK1AuZbBSIdqQwdXQCKf8RWdv+256NeHbB9OcczWn ptqkvWzL3rs2uKf2r5Bz279uDE9Q8/pjfu+e11wY= To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai Subject: [PATCH 4/4] ASoC: tas2770: Fix handling of mute/unmute Date: Mon, 8 Aug 2022 16:12:46 +0200 Message-Id: <20220808141246.5749-5-povik+lin@cutebit.org> In-Reply-To: <20220808141246.5749-1-povik+lin@cutebit.org> References: <20220808141246.5749-1-povik+lin@cutebit.org> MIME-Version: 1.0 Cc: alsa-devel@alsa-project.org, Stephen Kitt , linux-kernel@vger.kernel.org, Frank Shi , asahi@lists.linux.dev, =?utf-8?q?Martin_Povi=C5=A1er?= X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" 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 can mute an ongoing stream by toggling a speaker pin control. Fixes: 1a476abc723e ("tas2770: add tas2770 smart PA kernel driver") Signed-off-by: Martin PoviĊĦer --- sound/soc/codecs/tas2770.c | 57 ++++++++++++++++++++------------------ sound/soc/codecs/tas2770.h | 2 ++ 2 files changed, 32 insertions(+), 27 deletions(-) diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c index 10a79f8139be..9ea2aca65e89 100644 --- a/sound/soc/codecs/tas2770.c +++ b/sound/soc/codecs/tas2770.c @@ -46,6 +46,26 @@ static void tas2770_reset(struct tas2770_priv *tas2770) usleep_range(1000, 2000); } +static int tas2770_update_pwr_ctrl(struct tas2770_priv *tas2770) +{ + struct snd_soc_component *component = tas2770->component; + unsigned int val; + int ret; + + if (tas2770->dac_powered) + val = tas2770->unmuted ? + TAS2770_PWR_CTRL_ACTIVE : TAS2770_PWR_CTRL_MUTE; + else + val = TAS2770_PWR_CTRL_SHUTDOWN; + + ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, + TAS2770_PWR_CTRL_MASK, val); + if (ret < 0) + return ret; + + return 0; +} + #ifdef CONFIG_PM static int tas2770_codec_suspend(struct snd_soc_component *component) { @@ -82,9 +102,7 @@ static int tas2770_codec_resume(struct snd_soc_component *component) gpiod_set_value_cansleep(tas2770->sdz_gpio, 1); usleep_range(1000, 2000); } else { - ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, - TAS2770_PWR_CTRL_MASK, - TAS2770_PWR_CTRL_ACTIVE); + ret = tas2770_update_pwr_ctrl(tas2770); if (ret < 0) return ret; } @@ -120,24 +138,19 @@ static int tas2770_dac_event(struct snd_soc_dapm_widget *w, switch (event) { case SND_SOC_DAPM_POST_PMU: - ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, - TAS2770_PWR_CTRL_MASK, - TAS2770_PWR_CTRL_MUTE); + tas2770->dac_powered = 1; + ret = tas2770_update_pwr_ctrl(tas2770); break; case SND_SOC_DAPM_PRE_PMD: - ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, - TAS2770_PWR_CTRL_MASK, - TAS2770_PWR_CTRL_SHUTDOWN); + tas2770->dac_powered = 0; + ret = tas2770_update_pwr_ctrl(tas2770); break; default: dev_err(tas2770->dev, "Not supported evevt\n"); return -EINVAL; } - if (ret < 0) - return ret; - - return 0; + return ret; } static const struct snd_kcontrol_new isense_switch = @@ -171,21 +184,11 @@ static const struct snd_soc_dapm_route tas2770_audio_map[] = { static int tas2770_mute(struct snd_soc_dai *dai, int mute, int direction) { struct snd_soc_component *component = dai->component; - int ret; - - if (mute) - ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, - TAS2770_PWR_CTRL_MASK, - TAS2770_PWR_CTRL_MUTE); - else - ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, - TAS2770_PWR_CTRL_MASK, - TAS2770_PWR_CTRL_ACTIVE); - - if (ret < 0) - return ret; + struct tas2770_priv *tas2770 = + snd_soc_component_get_drvdata(component); - return 0; + tas2770->unmuted = !mute; + return tas2770_update_pwr_ctrl(tas2770); } static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth) diff --git a/sound/soc/codecs/tas2770.h b/sound/soc/codecs/tas2770.h index d51e88d8c338..f75f40781ab1 100644 --- a/sound/soc/codecs/tas2770.h +++ b/sound/soc/codecs/tas2770.h @@ -138,6 +138,8 @@ struct tas2770_priv { struct device *dev; int v_sense_slot; int i_sense_slot; + bool dac_powered; + bool unmuted; }; #endif /* __TAS2770__ */