From patchwork Thu Mar 10 08:15:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Steve X-Patchwork-Id: 551886 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 9DFBBC4332F for ; Mon, 14 Mar 2022 06:59:46 +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 CFF2316D5; Mon, 14 Mar 2022 07:58:54 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz CFF2316D5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1647241184; bh=2IRaH/n8k7QrZ1lJeEoUzQCSsZ7NJCpArTCQdx1lCRg=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=otN83lYqG5i4lxyUxwcbkWTE2qCrokrJng2k6NOaZfpH10rw1TigKaocDHyiq+7lm z+ZKZUGdfXNdK53HNPB58dylMunp6SY9DcF9Ck8BE0+VkDFaTcDmEKwl9YwBKeGUZ5 N/tegLH0n+zdUHozFtJSpaQDYbH+lGXYzgfmhY/s= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 6C196F80100; Mon, 14 Mar 2022 07:58:54 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id E27F9F80137; Thu, 10 Mar 2022 09:16:12 +0100 (CET) Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E5CFAF800D2 for ; Thu, 10 Mar 2022 09:16:06 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E5CFAF800D2 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FSykQPtD" Received: by mail-pj1-x1043.google.com with SMTP id m11-20020a17090a7f8b00b001beef6143a8so4546620pjl.4 for ; Thu, 10 Mar 2022 00:16:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id; bh=UqlG/qlH51JzZZsCgyFBRJweMGZD26FahP+uwp4r9BQ=; b=FSykQPtDCQ1wMMLVzooyDgNeZvg0vebosc8YpUWUKsz0xMGoHdez5Xrx+9YJDKnn+i rD3Xmudvj5gGZ3vlviX0TbDh/pwPZSic27LxDN1LUg7XX5NneYzM4QgwtA7ncuVzSU/w 6uJ/5RDzmnKepU4FdBxQw3ZKXBZbM19S1BVWvAHXx8e9Kv/faT43TvyHEaozwqwUb78b jjxirwC/D84rrn03DOKiYMjYmjsyFIDm6Fm+KBaFHWogt3sph4RL+FJHK9DMQT7adsZs N0/Fz1JPrd30+TkezrquUviXm3ls1n2RDbOvZNXcg+0RnQy96wxXfqE1RHYZUF/Um+s4 vocA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=UqlG/qlH51JzZZsCgyFBRJweMGZD26FahP+uwp4r9BQ=; b=6moP20xAmdIFQGTpgIPI9eCY7rfjDKKzYgwBD4pm8YXtLg65wutCXVN0HKE2TncWM4 be+PJVfVwL5aev4zJp8sAYdFYbNM/+EsBwuLDsL2DYLyZNp6xqVrAaG1c+PgPoyjD/Yi Xd3CRgEFkoUahSnhsp7UDHsk1KBgMh4IPvW723DMBKDxMI1qWQgVS+p4jtEf5XMmDGjk C8lpft5ERSm958AP/qjDUy57UahRBAJA7t3gL2C7wErPctkBnExTgqkdIF8wpCKn1D/o 6C/9YrQeI7VHKqyC0YeUNdQycOHEpOtC/PT/gZYS+DSAzRbDvnEzASuDREBktyWBlAe3 fqbA== X-Gm-Message-State: AOAM533dgu4nNCV4rz/2pmBlJKafTKR10x80y2TdKnFXrdHVPgFQEJQl /KS7U91FZYKTB7/ufqInIP8= X-Google-Smtp-Source: ABdhPJy00iGjkiSnCAWiH3WRRptw5KPM3DJ86R40tXtln3/EFo+qhm9Ikg+kT6B002zR9EzRfyoDlw== X-Received: by 2002:a17:902:d4c9:b0:151:d074:cbe8 with SMTP id o9-20020a170902d4c900b00151d074cbe8mr3840413plg.102.1646900163675; Thu, 10 Mar 2022 00:16:03 -0800 (PST) Received: from localhost.localdomain ([211.212.143.131]) by smtp.gmail.com with ESMTPSA id q11-20020a056a00084b00b004f73e6c26b8sm5976727pfk.25.2022.03.10.00.15.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Mar 2022 00:16:03 -0800 (PST) From: Steve Lee To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, ckeepax@opensource.cirrus.com, geert@linux-m68k.org, rf@opensource.wolfsonmicro.com, shumingf@realtek.com, srinivas.kandagatla@linaro.org, krzk@kernel.org, dmurphy@ti.com, jack.yu@realtek.com, nuno.sa@analog.com, steves.lee@maximintegrated.com, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org Subject: [PATCH] ASoC: max98390: Add reset gpio control Date: Thu, 10 Mar 2022 17:15:48 +0900 Message-Id: <20220310081548.31846-1-steve.lee.analog@gmail.com> X-Mailer: git-send-email 2.17.1 X-Mailman-Approved-At: Mon, 14 Mar 2022 07:58:50 +0100 Cc: Steve Lee 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" Add reset gpio control to support RESET PIN connected to gpio. Signed-off-by: Steve Lee --- sound/soc/codecs/max98390.c | 18 ++++++++++++++++++ sound/soc/codecs/max98390.h | 1 + 2 files changed, 19 insertions(+) diff --git a/sound/soc/codecs/max98390.c b/sound/soc/codecs/max98390.c index b392567c2b3e..574d8d5f1119 100644 --- a/sound/soc/codecs/max98390.c +++ b/sound/soc/codecs/max98390.c @@ -1073,6 +1073,24 @@ static int max98390_i2c_probe(struct i2c_client *i2c, return ret; } + max98390->reset_gpio = of_get_named_gpio(i2c->dev.of_node, + "maxim,reset-gpios", 0); + + /* Power on device */ + if (gpio_is_valid(max98390->reset_gpio)) { + ret = devm_gpio_request(&i2c->dev, max98390->reset_gpio, + "MAX98390_RESET"); + if (ret) { + dev_err(&i2c->dev, "%s: Failed to request gpio %d\n", + __func__, max98390->reset_gpio); + return -EINVAL; + } + gpio_direction_output(max98390->reset_gpio, 0); + usleep_range(1000, 2000); + gpio_direction_output(max98390->reset_gpio, 1); + usleep_range(1000, 2000); + } + /* Check Revision ID */ ret = regmap_read(max98390->regmap, MAX98390_R24FF_REV_ID, ®); diff --git a/sound/soc/codecs/max98390.h b/sound/soc/codecs/max98390.h index c250740f73a2..5518f2340247 100644 --- a/sound/soc/codecs/max98390.h +++ b/sound/soc/codecs/max98390.h @@ -655,6 +655,7 @@ struct max98390_priv { struct regmap *regmap; + int reset_gpio; unsigned int sysclk; unsigned int master; unsigned int tdm_mode;