From patchwork Fri Sep 11 17:31:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 291753 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1E47C43461 for ; Fri, 11 Sep 2020 17:35:13 +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 B158B22208 for ; Fri, 11 Sep 2020 17:35:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="ZTfRX5Al" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B158B22208 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.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 2C565167E; Fri, 11 Sep 2020 19:34:21 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 2C565167E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1599845711; bh=swaYRIxHeIaAUeEpu5OuRsiQs52Z0duE/jT4WPDhr6U=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=ZTfRX5AlQlwN+wUp1Z5nRvJqnIrG4+DzUF4UzD4iICaSJwVt9A/+9k84mYlTWjn3e Ko6VHOGnNGDABj/JFtvG6+eZ2ocH8RiF9FecKH3WGL9d2VIAQA4bomtGvL/WNpyHKj mYxkGHPHoovaiXSBVH+5vBdqEYuUUKOVRtyPcgKI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id C759AF802E2; Fri, 11 Sep 2020 19:32:01 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B7EADF802DF; Fri, 11 Sep 2020 19:31:58 +0200 (CEST) Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E3A43F80227 for ; Fri, 11 Sep 2020 19:31:46 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E3A43F80227 X-Originating-IP: 91.224.148.103 Received: from localhost.localdomain (unknown [91.224.148.103]) (Authenticated sender: miquel.raynal@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id 0AE131BF20F; Fri, 11 Sep 2020 17:31:44 +0000 (UTC) From: Miquel Raynal To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai Subject: [PATCH 3/3] ASoC: tlv320aic32x4: Enable fast charge Date: Fri, 11 Sep 2020 19:31:40 +0200 Message-Id: <20200911173140.29984-4-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200911173140.29984-1-miquel.raynal@bootlin.com> References: <20200911173140.29984-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Cc: Alexandre Belloni , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Thomas Petazzoni , Miquel Raynal 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" At power-up the analog circuits may take up to one full second before being charged with the default configuration. Using the analog blocks before they are ready generates a *very* crappy sound. Enable the fast charge feature, which will require a bit more power than normal charge but will definitely speed up the starting operation by shrinking this delay to up to 40 ms. Signed-off-by: Miquel Raynal --- sound/soc/codecs/tlv320aic32x4.c | 8 ++++++++ sound/soc/codecs/tlv320aic32x4.h | 7 +++++++ 2 files changed, 15 insertions(+) diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c index 7a1ffbaf48be..5fb8ba109bc9 100644 --- a/sound/soc/codecs/tlv320aic32x4.c +++ b/sound/soc/codecs/tlv320aic32x4.c @@ -1009,6 +1009,14 @@ static int aic32x4_component_probe(struct snd_soc_component *component) AIC32X4_LADC_EN | AIC32X4_RADC_EN); snd_soc_component_write(component, AIC32X4_ADCSETUP, tmp_reg); + /* + * Enable the fast charging feature and ensure the needed 40ms ellapsed + * before using the analog circuits. + */ + snd_soc_component_write(component, AIC32X4_REFPOWERUP, + AIC32X4_REFPOWERUP_40MS); + msleep(40); + return 0; } diff --git a/sound/soc/codecs/tlv320aic32x4.h b/sound/soc/codecs/tlv320aic32x4.h index 38f47704bb75..7550122e9f8a 100644 --- a/sound/soc/codecs/tlv320aic32x4.h +++ b/sound/soc/codecs/tlv320aic32x4.h @@ -96,6 +96,7 @@ int aic32x4_register_clocks(struct device *dev, const char *mclk_name); #define AIC32X4_FLOATINGINPUT AIC32X4_REG(1, 58) #define AIC32X4_LMICPGAVOL AIC32X4_REG(1, 59) #define AIC32X4_RMICPGAVOL AIC32X4_REG(1, 60) +#define AIC32X4_REFPOWERUP AIC32X4_REG(1, 123) /* Bits, masks, and shifts */ @@ -205,6 +206,12 @@ int aic32x4_register_clocks(struct device *dev, const char *mclk_name); #define AIC32X4_RMICPGANIN_IN1L_10K 0x10 #define AIC32X4_RMICPGANIN_CM1R_10K 0x40 +/* AIC32X4_REFPOWERUP */ +#define AIC32X4_REFPOWERUP_SLOW 0x04 +#define AIC32X4_REFPOWERUP_40MS 0x05 +#define AIC32X4_REFPOWERUP_80MS 0x06 +#define AIC32X4_REFPOWERUP_120MS 0x07 + /* Common mask and enable for all of the dividers */ #define AIC32X4_DIVEN BIT(7) #define AIC32X4_DIV_MASK GENMASK(6, 0)