From patchwork Thu Oct 27 08:28:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Beer X-Patchwork-Id: 13128881 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 E8B35C61DA4 for ; Sat, 4 Feb 2023 21:04:23 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 9BC67846; Sat, 4 Feb 2023 22:03:31 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 9BC67846 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1675544661; bh=0x+qp7TDI5lFBFebKsplJjfV6X8LXHj+MtvfJjST3s8=; h=In-Reply-To:References:From:Date:Subject:To:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Cc:From; b=VfDVwqNWKjlM0X0M5uVp8SRDuSf8V/BVJkKA/qpU+56bSBoFzWkgH7Wqg5QbTXjJa /4R68aNdRjOzhDb9PYLESUoPLAyQs6rtKX64nf+QSBYK/IWZTKlOxaKpRDScK33biD +qmiWBnQfse1ewjFDJo+Tbw0+MYffUc4lQ0EKgmI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 3581CF804E2; Sat, 4 Feb 2023 22:02:58 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 197C9F80549; Sat, 4 Feb 2023 22:02:57 +0100 (CET) Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 27601F80271 for ; Sat, 4 Feb 2023 22:02:08 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 27601F80271 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=igorinstitute-com.20210112.gappssmtp.com header.i=@igorinstitute-com.20210112.gappssmtp.com header.a=rsa-sha256 header.s=20210112 header.b=TdZgv/XT Received: by mail-pl1-x631.google.com with SMTP id g13so3774891ple.10 for ; Sat, 04 Feb 2023 13:02:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=igorinstitute-com.20210112.gappssmtp.com; s=20210112; h=cc:to:subject:date:from:references:in-reply-to:message-id:from:to :cc:subject:date:message-id:reply-to; bh=38D6J740N3833rshUE9U2HYtUisuJRur7dCUFd2NB3Q=; b=TdZgv/XTCjn5Ew2w8CRX1nwLXdxhnkY8cW+9DDdckH0UZOlxm20bwQaaDKw0vwBqGD +47Ab11AHGGLu0/G7uQTJmGSbUhD8HktM7W+aWbH2vTz1LFi8KRQKmHA+EX7LMWGK/XH cd/6bp7xiSllIPMU43PFbxta6sx0LJ9t6gUNyDyqqSVdGujFG1GpGUHma6+rjTTf5KiS 7xYsDEu0QFZgJ+RjKUjFBlJVAa1wqHXKXxF34hEIPK8ARFGoH+08bdRTrE71lfpW89Kk cm7sE57ZFzpr2Xu/8DoYbm09Q+lVDIHaQttzTtxIbW+hSu0SQH8sJ4AWQLbr5By+JGoa W2FA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:date:from:references:in-reply-to:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=38D6J740N3833rshUE9U2HYtUisuJRur7dCUFd2NB3Q=; b=BnYM4yYOp17X/kckXa1zFWFg4VokTmn31MXeHUNMeiUiYEneDS9j4LQYqTttn3mfs5 FFZDCDWCkmA2xnufzcPKGd+LrJRvGI6Wv7AzeVlWSo6L2hRy9xwUiCQwZJZq6tS8wFmp stQvLGjFXxyxav8zAioITV4RI5onQKv4LFz1Egz64WLTJZblKaK4usrnSf+cLau82fuj 9qe0r/oA+riRDYzx6DmQJ8aSLHOjtGK+wOjHrj4I1rv/KYBCi4zX4KvEXlpp59kvGK1+ BRoXsD19zeedtDTduP8MQvDiiRbN63nq8WnZPgBcKr7s7y77ajnkVcpaM744fxrDx2x2 Qj2w== X-Gm-Message-State: AO0yUKXM1muNwqhFg+QJPR/hUVZwaz3fzc+t9KjXTi6EkjOrtLA0/SxZ SuTCwMM2m054hjk9gFSe/SI2oUvbXt43CWnU X-Google-Smtp-Source: AK7set/qojJ+xgELZjMGFAfgEw2fG9MMcOPNCpht2AALraSNHtNUcG4xMT0qEvXDwqO2bWtVloWmZg== X-Received: by 2002:a17:902:ce91:b0:194:7efa:702f with SMTP id f17-20020a170902ce9100b001947efa702fmr18052435plg.53.1675544526143; Sat, 04 Feb 2023 13:02:06 -0800 (PST) Received: from localhost ([121.99.145.49]) by smtp.gmail.com with ESMTPSA id jj20-20020a170903049400b00194ab9a4febsm3867973plb.74.2023.02.04.13.02.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Feb 2023 13:02:05 -0800 (PST) Message-Id: <85d8ba405cb009a7a3249b556dc8f3bdb1754fdf.1675497326.git.daniel.beer@igorinstitute.com> In-Reply-To: References: From: Daniel Beer Date: Thu, 27 Oct 2022 21:28:31 +1300 Subject: [PATCH v3 1/2] ASoC: tas5805m: rework to avoid scheduling while atomic. To: alsa-devel@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.29 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: , Cc: Andy Liu , Mark Brown , Daniel Beer , linux-kernel@vger.kernel.org Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" There's some setup we need to do in order to get the DSP initialized, and this can't be done until a bit-clock is ready. In an earlier version of this driver, this work was done in a DAPM callback. The DAPM callback doesn't guarantee that the bit-clock is running, so the work was moved instead to the trigger callback. Unfortunately this callback runs in atomic context, and the setup code needs to do I2C transactions. Here we use a work_struct to kick off the setup in a thread instead. Fixes: ec45268467f4 ("ASoC: add support for TAS5805M digital amplifier") Signed-off-by: Daniel Beer --- sound/soc/codecs/tas5805m.c | 128 ++++++++++++++++++++++++------------ 1 file changed, 87 insertions(+), 41 deletions(-) diff --git a/sound/soc/codecs/tas5805m.c b/sound/soc/codecs/tas5805m.c index beb4ec629a03..6e2edf045446 100644 --- a/sound/soc/codecs/tas5805m.c +++ b/sound/soc/codecs/tas5805m.c @@ -154,6 +154,7 @@ static const uint32_t tas5805m_volume[] = { #define TAS5805M_VOLUME_MIN 0 struct tas5805m_priv { + struct i2c_client *i2c; struct regulator *pvdd; struct gpio_desc *gpio_pdn_n; @@ -165,6 +166,9 @@ struct tas5805m_priv { int vol[2]; bool is_powered; bool is_muted; + + struct work_struct work; + struct mutex lock; }; static void set_dsp_scale(struct regmap *rm, int offset, int vol) @@ -181,13 +185,11 @@ static void set_dsp_scale(struct regmap *rm, int offset, int vol) regmap_bulk_write(rm, offset, v, ARRAY_SIZE(v)); } -static void tas5805m_refresh(struct snd_soc_component *component) +static void tas5805m_refresh(struct tas5805m_priv *tas5805m) { - struct tas5805m_priv *tas5805m = - snd_soc_component_get_drvdata(component); struct regmap *rm = tas5805m->regmap; - dev_dbg(component->dev, "refresh: is_muted=%d, vol=%d/%d\n", + dev_dbg(&tas5805m->i2c->dev, "refresh: is_muted=%d, vol=%d/%d\n", tas5805m->is_muted, tas5805m->vol[0], tas5805m->vol[1]); regmap_write(rm, REG_PAGE, 0x00); @@ -226,8 +228,11 @@ static int tas5805m_vol_get(struct snd_kcontrol *kcontrol, struct tas5805m_priv *tas5805m = snd_soc_component_get_drvdata(component); + mutex_lock(&tas5805m->lock); ucontrol->value.integer.value[0] = tas5805m->vol[0]; ucontrol->value.integer.value[1] = tas5805m->vol[1]; + mutex_unlock(&tas5805m->lock); + return 0; } @@ -243,11 +248,13 @@ static int tas5805m_vol_put(struct snd_kcontrol *kcontrol, snd_soc_kcontrol_component(kcontrol); struct tas5805m_priv *tas5805m = snd_soc_component_get_drvdata(component); + int ret = 0; if (!(volume_is_valid(ucontrol->value.integer.value[0]) && volume_is_valid(ucontrol->value.integer.value[1]))) return -EINVAL; + mutex_lock(&tas5805m->lock); if (tas5805m->vol[0] != ucontrol->value.integer.value[0] || tas5805m->vol[1] != ucontrol->value.integer.value[1]) { tas5805m->vol[0] = ucontrol->value.integer.value[0]; @@ -256,11 +263,12 @@ static int tas5805m_vol_put(struct snd_kcontrol *kcontrol, tas5805m->vol[0], tas5805m->vol[1], tas5805m->is_powered); if (tas5805m->is_powered) - tas5805m_refresh(component); - return 1; + tas5805m_refresh(tas5805m); + ret = 1; } + mutex_unlock(&tas5805m->lock); - return 0; + return ret; } static const struct snd_kcontrol_new tas5805m_snd_controls[] = { @@ -294,54 +302,83 @@ static int tas5805m_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_component *component = dai->component; struct tas5805m_priv *tas5805m = snd_soc_component_get_drvdata(component); - struct regmap *rm = tas5805m->regmap; - unsigned int chan, global1, global2; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - dev_dbg(component->dev, "DSP startup\n"); - - /* We mustn't issue any I2C transactions until the I2S - * clock is stable. Furthermore, we must allow a 5ms - * delay after the first set of register writes to - * allow the DSP to boot before configuring it. - */ - usleep_range(5000, 10000); - send_cfg(rm, dsp_cfg_preboot, - ARRAY_SIZE(dsp_cfg_preboot)); - usleep_range(5000, 15000); - send_cfg(rm, tas5805m->dsp_cfg_data, - tas5805m->dsp_cfg_len); - - tas5805m->is_powered = true; - tas5805m_refresh(component); + dev_dbg(component->dev, "clock start\n"); + schedule_work(&tas5805m->work); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - dev_dbg(component->dev, "DSP shutdown\n"); + break; - tas5805m->is_powered = false; + default: + return -EINVAL; + } - regmap_write(rm, REG_PAGE, 0x00); - regmap_write(rm, REG_BOOK, 0x00); + return 0; +} - regmap_read(rm, REG_CHAN_FAULT, &chan); - regmap_read(rm, REG_GLOBAL_FAULT1, &global1); - regmap_read(rm, REG_GLOBAL_FAULT2, &global2); +static void do_work(struct work_struct *work) +{ + struct tas5805m_priv *tas5805m = + container_of(work, struct tas5805m_priv, work); + struct regmap *rm = tas5805m->regmap; - dev_dbg(component->dev, - "fault regs: CHAN=%02x, GLOBAL1=%02x, GLOBAL2=%02x\n", - chan, global1, global2); + dev_dbg(&tas5805m->i2c->dev, "DSP startup\n"); - regmap_write(rm, REG_DEVICE_CTRL_2, DCTRL2_MODE_HIZ); - break; + mutex_lock(&tas5805m->lock); + /* We mustn't issue any I2C transactions until the I2S + * clock is stable. Furthermore, we must allow a 5ms + * delay after the first set of register writes to + * allow the DSP to boot before configuring it. + */ + usleep_range(5000, 10000); + send_cfg(rm, dsp_cfg_preboot, ARRAY_SIZE(dsp_cfg_preboot)); + usleep_range(5000, 15000); + send_cfg(rm, tas5805m->dsp_cfg_data, tas5805m->dsp_cfg_len); + + tas5805m->is_powered = true; + tas5805m_refresh(tas5805m); + mutex_unlock(&tas5805m->lock); +} - default: - return -EINVAL; +static int tas5805m_dac_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct tas5805m_priv *tas5805m = + snd_soc_component_get_drvdata(component); + struct regmap *rm = tas5805m->regmap; + + if (event & SND_SOC_DAPM_PRE_PMD) { + unsigned int chan, global1, global2; + + dev_dbg(component->dev, "DSP shutdown\n"); + cancel_work_sync(&tas5805m->work); + + mutex_lock(&tas5805m->lock); + if (tas5805m->is_powered) { + tas5805m->is_powered = false; + + regmap_write(rm, REG_PAGE, 0x00); + regmap_write(rm, REG_BOOK, 0x00); + + regmap_read(rm, REG_CHAN_FAULT, &chan); + regmap_read(rm, REG_GLOBAL_FAULT1, &global1); + regmap_read(rm, REG_GLOBAL_FAULT2, &global2); + + dev_dbg(component->dev, "fault regs: CHAN=%02x, " + "GLOBAL1=%02x, GLOBAL2=%02x\n", + chan, global1, global2); + + regmap_write(rm, REG_DEVICE_CTRL_2, DCTRL2_MODE_HIZ); + } + mutex_unlock(&tas5805m->lock); } return 0; @@ -354,7 +391,8 @@ static const struct snd_soc_dapm_route tas5805m_audio_map[] = { static const struct snd_soc_dapm_widget tas5805m_dapm_widgets[] = { SND_SOC_DAPM_AIF_IN("DAC IN", "Playback", 0, SND_SOC_NOPM, 0, 0), - SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, + tas5805m_dac_event, SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_OUTPUT("OUT") }; @@ -375,11 +413,14 @@ static int tas5805m_mute(struct snd_soc_dai *dai, int mute, int direction) struct tas5805m_priv *tas5805m = snd_soc_component_get_drvdata(component); + mutex_lock(&tas5805m->lock); dev_dbg(component->dev, "set mute=%d (is_powered=%d)\n", mute, tas5805m->is_powered); + tas5805m->is_muted = mute; if (tas5805m->is_powered) - tas5805m_refresh(component); + tas5805m_refresh(tas5805m); + mutex_unlock(&tas5805m->lock); return 0; } @@ -434,6 +475,7 @@ static int tas5805m_i2c_probe(struct i2c_client *i2c) if (!tas5805m) return -ENOMEM; + tas5805m->i2c = i2c; tas5805m->pvdd = devm_regulator_get(dev, "pvdd"); if (IS_ERR(tas5805m->pvdd)) { dev_err(dev, "failed to get pvdd supply: %ld\n", @@ -507,6 +549,9 @@ static int tas5805m_i2c_probe(struct i2c_client *i2c) gpiod_set_value(tas5805m->gpio_pdn_n, 1); usleep_range(10000, 15000); + INIT_WORK(&tas5805m->work, do_work); + mutex_init(&tas5805m->lock); + /* Don't register through devm. We need to be able to unregister * the component prior to deasserting PDN# */ @@ -527,6 +572,7 @@ static void tas5805m_i2c_remove(struct i2c_client *i2c) struct device *dev = &i2c->dev; struct tas5805m_priv *tas5805m = dev_get_drvdata(dev); + cancel_work_sync(&tas5805m->work); snd_soc_unregister_component(dev); gpiod_set_value(tas5805m->gpio_pdn_n, 0); usleep_range(10000, 15000); From patchwork Thu Oct 27 08:38:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Beer X-Patchwork-Id: 13128879 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 F31C3C636CC for ; Sat, 4 Feb 2023 21:03:33 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id B56D81D6; Sat, 4 Feb 2023 22:02:40 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz B56D81D6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1675544610; bh=NKKmhmP/FcB4EEQwBs0jwdjU+pvAZui6Goo7Bv8cheo=; h=In-Reply-To:References:From:Date:Subject:To:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Cc:From; b=jJbpb9g5KAT6dh4BrlgohcqJ0WzQ2Pw6dd92y7ULE/0N1BZL11BWpsub2MEXfJrR+ AsufhFHg7ZyPRjw2ufuwT7e26+Q5dZDhLB3DOZCQ20ycWSavc8qZUA/RfhKVGTF00W 62qK0hyVrmc8YJenKjNbSj4ubTawCuNntDr51W4g= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 36471F804C2; Sat, 4 Feb 2023 22:02:40 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0EE4CF804DF; Sat, 4 Feb 2023 22:02:16 +0100 (CET) Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id B61C1F80162 for ; Sat, 4 Feb 2023 22:02:13 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B61C1F80162 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=igorinstitute-com.20210112.gappssmtp.com header.i=@igorinstitute-com.20210112.gappssmtp.com header.a=rsa-sha256 header.s=20210112 header.b=3w2YiAyN Received: by mail-pg1-x533.google.com with SMTP id 143so5858815pgg.6 for ; Sat, 04 Feb 2023 13:02:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=igorinstitute-com.20210112.gappssmtp.com; s=20210112; h=cc:to:subject:date:from:references:in-reply-to:message-id:from:to :cc:subject:date:message-id:reply-to; bh=Iy74VsRO4WDPI6duqo1jqOxf/w5vgZYHdL8GT2SYMKg=; b=3w2YiAyNJtEQDGuv+q7PteQbxAc90iPxEhXnUrO3pypsg9+j3VEF6mDjcBvK2d6wcS HIA47XOx8JQMCuEL9QMqJ6ePxyG6xNYxnP6Ua5JnkAMN2wiu+gUpM+ZThpofkVWVfAlj T7RepGAQshvpe0Q59PUc5VTkj08UpWL71psGPVyphDalykOLecEuf+dN+mkjzPgvMyT0 dTroAiVxWHhwN+qDjQzIdL7wAyfGoI3xNZ6w6gGOesYEgD+RNS+YpVorOx1SH+fOeBVH vbi4W0huTNQ4wLDgJsHnjsgY+aPSfXYhBT9yWQfwmkZCNighdfNn+seKdpZvO39nN+8U K7Nw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:date:from:references:in-reply-to:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Iy74VsRO4WDPI6duqo1jqOxf/w5vgZYHdL8GT2SYMKg=; b=XDmGEWXTmWnVv+ftGg6SjdjEqp/LVdZpn58YZAuAlSrCaw0xh7pC/Dr0tV33A0E5M4 eD9xLJmq00+Pce++HlwCUrryqW5qsjqTRw4Pen50W+ewN3g3d+KXQpdAxvXIQGgOPQ1U 5emZiOJRiIFIcxPECtHwBSLf1tSr52cEV8ZDvWYb++lp1d/9ULwuXZSnv9fq2GGNs8AP ajeiWM5EQjwkfDhd15ar5vkpaU8k0hBqB8vKgTUpA+JA1PW1WhTV+rYSPYJxjB3oANWY QCWs56uI3XA1v2OGsOt+RaL2wx6Mta1i/d4luqnt7oed6FFaUgV2SR4kN6bLyZ4r1cmC gdiA== X-Gm-Message-State: AO0yUKVwPm05OWphTPS+xK+dBgTMXKS5jggXbXxmuqtEG6tkprxDAhUh FXITrBrUpQwLVoe4cmtS6ee5RFWWJbP1ns2y X-Google-Smtp-Source: AK7set/RHBlFpv8T3OLVL5wC59M32m9IYL76JHfQskGRevwysuhNbGGfCrdmUEkCXh5ukykwH4hIhQ== X-Received: by 2002:a05:6a00:c87:b0:593:af2e:b872 with SMTP id a7-20020a056a000c8700b00593af2eb872mr17898882pfv.2.1675544530517; Sat, 04 Feb 2023 13:02:10 -0800 (PST) Received: from localhost ([121.99.145.49]) by smtp.gmail.com with ESMTPSA id h30-20020a056a00001e00b0058bbaa5200dsm4106116pfk.214.2023.02.04.13.02.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Feb 2023 13:02:10 -0800 (PST) Message-Id: <1fea38a71ea6ab0225d19ab28d1fa12828d762d0.1675497326.git.daniel.beer@igorinstitute.com> In-Reply-To: References: From: Daniel Beer Date: Thu, 27 Oct 2022 21:38:38 +1300 Subject: [PATCH v3 2/2] ASoC: tas5805m: add missing page switch. To: alsa-devel@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.29 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: , Cc: Andy Liu , Mark Brown , Daniel Beer , linux-kernel@vger.kernel.org Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" In tas5805m_refresh, we switch pages to update the DSP volume control, but we need to switch back to page 0 before trying to alter the soft-mute control. This latter page-switch was missing. Fixes: ec45268467f4 ("ASoC: add support for TAS5805M digital amplifier") Signed-off-by: Daniel Beer --- sound/soc/codecs/tas5805m.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/codecs/tas5805m.c b/sound/soc/codecs/tas5805m.c index 6e2edf045446..4e38eb7acea1 100644 --- a/sound/soc/codecs/tas5805m.c +++ b/sound/soc/codecs/tas5805m.c @@ -203,6 +203,9 @@ static void tas5805m_refresh(struct tas5805m_priv *tas5805m) set_dsp_scale(rm, 0x24, tas5805m->vol[0]); set_dsp_scale(rm, 0x28, tas5805m->vol[1]); + regmap_write(rm, REG_PAGE, 0x00); + regmap_write(rm, REG_BOOK, 0x00); + /* Set/clear digital soft-mute */ regmap_write(rm, REG_DEVICE_CTRL_2, (tas5805m->is_muted ? DCTRL2_MUTE : 0) |