From patchwork Fri Aug 14 09:32:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 11713993 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 34B4D109B for ; Fri, 14 Aug 2020 09:40:31 +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 BDB7220708 for ; Fri, 14 Aug 2020 09:40:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="apcXcX+k" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BDB7220708 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.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 3577B1665; Fri, 14 Aug 2020 11:39:40 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 3577B1665 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1597398029; bh=MLmGWvXVGcWAAjXcF/fRGE7PyQTQCWSrUYEDQsX13Js=; h=From:To:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=apcXcX+ky5/k6+fPrPSqwc1w0SZA5BizhHuC4JFOq+2gouHfO/F1vKvcnBcuhyg01 0yU8Iq3elKXLydxK8eo7618b24gS/38D9puOa1EsbDaWkdoTQBU/eWmZV9ytdVZAyQ uvqBeYhufKKbnlS8gXSmYQXFlF8iIB36g14VcqEg= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 15B7FF8022D; Fri, 14 Aug 2020 11:38:48 +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 1ABDAF8022B; Fri, 14 Aug 2020 11:38:14 +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=0.0 required=5.0 tests=SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) (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 2E79FF80146 for ; Fri, 14 Aug 2020 11:38:03 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 2E79FF80146 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 10F5D2011EB; Fri, 14 Aug 2020 11:38:03 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id A7DAF2000BB; Fri, 14 Aug 2020 11:37:59 +0200 (CEST) Received: from 10.192.242.69 (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 2E206402C9; Fri, 14 Aug 2020 11:37:55 +0200 (CEST) From: Shengjiu Wang To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org Subject: [PATCH 2/2] ASoC: ak4458: Add regulator support Date: Fri, 14 Aug 2020 17:32:41 +0800 Message-Id: <1597397561-2426-2-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1597397561-2426-1-git-send-email-shengjiu.wang@nxp.com> References: <1597397561-2426-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP 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" "AVDD" is for analog power supply, "DVDD" is for digital power supply, they can improve the power management. As the regulator is enabled in pm runtime resume, which is behind the component driver probe, so accessing registers in component driver probe will fail. Fix this issue by enabling regcache_cache_only after pm_runtime_enable. Signed-off-by: Shengjiu Wang --- sound/soc/codecs/ak4458.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c index cbe3c782e0ca..763e6839428f 100644 --- a/sound/soc/codecs/ak4458.c +++ b/sound/soc/codecs/ak4458.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -21,6 +22,12 @@ #include "ak4458.h" +#define AK4458_NUM_SUPPLIES 2 +static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = { + "DVDD", + "AVDD", +}; + struct ak4458_drvdata { struct snd_soc_dai_driver *dai_drv; const struct snd_soc_component_driver *comp_drv; @@ -28,6 +35,7 @@ struct ak4458_drvdata { /* AK4458 Codec Private Data */ struct ak4458_priv { + struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES]; struct device *dev; struct regmap *regmap; struct gpio_desc *reset_gpiod; @@ -587,12 +595,22 @@ static int __maybe_unused ak4458_runtime_suspend(struct device *dev) if (ak4458->mute_gpiod) gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); + regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies), + ak4458->supplies); return 0; } static int __maybe_unused ak4458_runtime_resume(struct device *dev) { struct ak4458_priv *ak4458 = dev_get_drvdata(dev); + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies), + ak4458->supplies); + if (ret != 0) { + dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret); + return ret; + } if (ak4458->mute_gpiod) gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); @@ -667,7 +685,7 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) { struct ak4458_priv *ak4458; const struct ak4458_drvdata *drvdata; - int ret; + int ret, i; ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL); if (!ak4458) @@ -692,6 +710,16 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) if (IS_ERR(ak4458->mute_gpiod)) return PTR_ERR(ak4458->mute_gpiod); + for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++) + ak4458->supplies[i].supply = ak4458_supply_names[i]; + + ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies), + ak4458->supplies); + if (ret != 0) { + dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret); + return ret; + } + ret = devm_snd_soc_register_component(ak4458->dev, drvdata->comp_drv, drvdata->dai_drv, 1); if (ret < 0) { @@ -700,6 +728,7 @@ static int ak4458_i2c_probe(struct i2c_client *i2c) } pm_runtime_enable(&i2c->dev); + regcache_cache_only(ak4458->regmap, true); return 0; }