From patchwork Thu Aug 22 12:51:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SmlheGluIFl1ICjkv57lrrbpkasp?= X-Patchwork-Id: 11109269 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 46805174A for ; Thu, 22 Aug 2019 12:53:17 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 730A7233FE for ; Thu, 22 Aug 2019 12:53:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="EFPnM85h" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 730A7233FE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org 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 5F8FF1692; Thu, 22 Aug 2019 14:52:24 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 5F8FF1692 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1566478394; bh=vnO746GoBk2Ezx+IfaW+lj96bCdAXdrywbgsp4VXBl0=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=EFPnM85hXzvsPOlKBHtxITWrpiHqCkUBRPWpnZBh+pdDAtBVV0ddQrgcvhhiEPrZt u3Zl5hKJAMvztHY7hEvZhUNmjHG1lhx67dhjYd8JBZlidO0/R9LfnW/Ft8fcGbUOhX rasOk5c9Lu8ZmawJsHbwwM4jFPp8UDoI8sumaVaM= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 1691DF804CB; Thu, 22 Aug 2019 14:51:33 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 25093F804CB; Thu, 22 Aug 2019 14:51:30 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: * X-Spam-Status: No, score=1.0 required=5.0 tests=RCVD_IN_DNSWL_BLOCKED, RDNS_NONE,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from mailgw01.mediatek.com (unknown [210.61.82.183]) by alsa1.perex.cz (Postfix) with ESMTP id ADF0FF8036D for ; Thu, 22 Aug 2019 14:51:21 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz ADF0FF8036D X-UUID: e60da9a6d2734d12a57dc617b084f191-20190822 X-UUID: e60da9a6d2734d12a57dc617b084f191-20190822 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0707 with TLS) with ESMTP id 712839279; Thu, 22 Aug 2019 20:51:16 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 22 Aug 2019 20:51:10 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 22 Aug 2019 20:51:09 +0800 From: Jiaxin Yu To: Date: Thu, 22 Aug 2019 20:51:00 +0800 Message-ID: <1566478261-13464-2-git-send-email-jiaxin.yu@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1566478261-13464-1-git-send-email-jiaxin.yu@mediatek.com> References: <1566478261-13464-1-git-send-email-jiaxin.yu@mediatek.com> MIME-Version: 1.0 X-MTK: N Cc: alsa-devel@alsa-project.org, ck.hu@medaitek.com, lgirdwood@gmail.com, jiaxin.yu@mediatek.com, tzungbi@google.com, linux-mediatek@lists.infradead.org, eason.yen@mediatek.com Subject: [alsa-devel] [PATCH 1/2] ASoC: mediatek: mt8183: switch tdm pins gpio function when playback on or off 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" Pull TDM pins down when TDM BE shutdown to avoid current leakage. Signed-off-by: Jiaxin Yu --- .../mt8183/mt8183-mt6358-ts3a227-max98357.c | 115 +++++++++++++++++++-- 1 file changed, 109 insertions(+), 6 deletions(-) diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c index 272766c..fe8a746 100644 --- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c +++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c @@ -46,6 +46,32 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, return 0; } +static const struct snd_soc_dapm_widget +mt8183_mt6358_ts3a227_max98357_dapm_widgets[] = { + SND_SOC_DAPM_OUTPUT("IT6505_8CH"), +}; + +static const struct snd_soc_dapm_route +mt8183_mt6358_ts3a227_max98357_dapm_routes[] = { + {"IT6505_8CH", NULL, "TDM"}, +}; + +enum PINCTRL_PIN_STATE { + PIN_STATE_DEFAULT = 0, + PIN_TDM_OUT_ON, + PIN_TDM_OUT_OFF, + PIN_STATE_MAX +}; + +static const char * const mt8183_pin_str[PIN_STATE_MAX] = { + "default", "aud_tdm_out_on", "aud_tdm_out_off", +}; + +struct mt8183_mt6358_ts3a227_max98357_priv { + struct pinctrl *pinctrl; + struct pinctrl_state *pin_states[PIN_STATE_MAX]; +}; + static int mt8183_mt6358_ts3a227_max98357_bt_sco_startup( struct snd_pcm_substream *substream) @@ -173,6 +199,47 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, DAILINK_COMP_ARRAY(COMP_DUMMY()), DAILINK_COMP_ARRAY(COMP_EMPTY())); +static int mt8183_mt6358_tdm_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct mt8183_mt6358_ts3a227_max98357_priv *priv = + snd_soc_card_get_drvdata(rtd->card); + int ret; + + if (IS_ERR(priv->pin_states[PIN_TDM_OUT_ON])) + return PTR_ERR(priv->pin_states[PIN_TDM_OUT_ON]); + + ret = pinctrl_select_state(priv->pinctrl, + priv->pin_states[PIN_TDM_OUT_ON]); + if (ret) + dev_err(rtd->card->dev, "%s failed to select state %d\n", + __func__, ret); + + return ret; +} + +static void mt8183_mt6358_tdm_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct mt8183_mt6358_ts3a227_max98357_priv *priv = + snd_soc_card_get_drvdata(rtd->card); + int ret; + + if (IS_ERR(priv->pin_states[PIN_TDM_OUT_OFF])) + return; + + ret = pinctrl_select_state(priv->pinctrl, + priv->pin_states[PIN_TDM_OUT_OFF]); + if (ret) + dev_err(rtd->card->dev, "%s failed to select state %d\n", + __func__, ret); +} + +static struct snd_soc_ops mt8183_mt6358_tdm_ops = { + .startup = mt8183_mt6358_tdm_startup, + .shutdown = mt8183_mt6358_tdm_shutdown, +}; + static struct snd_soc_dai_link mt8183_mt6358_ts3a227_max98357_dai_links[] = { /* FE */ @@ -325,6 +392,8 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, .no_pcm = 1, .dpcm_playback = 1, .ignore_suspend = 1, + .be_hw_params_fixup = mt8183_i2s_hw_params_fixup, + .ops = &mt8183_mt6358_tdm_ops, SND_SOC_DAILINK_REG(tdm), }, }; @@ -371,7 +440,8 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_soc_card *card = &mt8183_mt6358_ts3a227_max98357_card; struct device_node *platform_node; struct snd_soc_dai_link *dai_link; - struct pinctrl *default_pins; + struct mt8183_mt6358_ts3a227_max98357_priv *priv; + int ret; int i; card->dev = &pdev->dev; @@ -397,12 +467,45 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, card->num_aux_devs = 1; } - default_pins = - devm_pinctrl_get_select(&pdev->dev, PINCTRL_STATE_DEFAULT); - if (IS_ERR(default_pins)) { - dev_err(&pdev->dev, "%s set pins failed\n", + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + snd_soc_card_set_drvdata(card, priv); + + priv->pinctrl = devm_pinctrl_get(&pdev->dev); + if (IS_ERR(priv->pinctrl)) { + dev_err(&pdev->dev, "%s devm_pinctrl_get failed\n", __func__); - return PTR_ERR(default_pins); + return PTR_ERR(priv->pinctrl); + } + + for (i = 0 ; i < PIN_STATE_MAX ; i++) { + priv->pin_states[i] = pinctrl_lookup_state(priv->pinctrl, + mt8183_pin_str[i]); + if (IS_ERR(priv->pin_states[i])) { + ret = PTR_ERR(priv->pin_states[i]); + dev_info(&pdev->dev, "%s Can't find pin state %s %d\n", + __func__, mt8183_pin_str[i], ret); + } + } + + if (!IS_ERR(priv->pin_states[PIN_TDM_OUT_OFF])) { + ret = pinctrl_select_state(priv->pinctrl, + priv->pin_states[PIN_TDM_OUT_OFF]); + if (ret) + dev_info(&pdev->dev, + "%s failed to select state %d\n", + __func__, ret); + } + + if (!IS_ERR(priv->pin_states[PIN_STATE_DEFAULT])) { + ret = pinctrl_select_state(priv->pinctrl, + priv->pin_states[PIN_STATE_DEFAULT]); + if (ret) + dev_info(&pdev->dev, + "%s failed to select state %d\n", + __func__, ret); } return devm_snd_soc_register_card(&pdev->dev, card);