From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4BD5BC433EF for ; Thu, 10 Mar 2022 08:16:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240253AbiCJIRI (ORCPT ); Thu, 10 Mar 2022 03:17:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41576 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238910AbiCJIRE (ORCPT ); Thu, 10 Mar 2022 03:17:04 -0500 Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 20C441342F2 for ; Thu, 10 Mar 2022 00:16:04 -0800 (PST) Received: by mail-pj1-x1043.google.com with SMTP id mr24-20020a17090b239800b001bf0a375440so7556215pjb.4 for ; Thu, 10 Mar 2022 00:16:04 -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=E+Sa4k80Nvv5qaN2AZOBD3sp34P+xU0g6xP02LtSSe6PuDG7MgTIqWrK5P+oPcipPA uQ4hJUoMaEl6dMTzqsFnfZSojo4stxZ3DvtefuAWgHXmcKiJn7Xpvd7wvH6g02wT1hif u8Kji6Tahkg/LIY0bdsL2tk3zdkZog7FGIeR01Zko+yf31DKZ0Dq4g2tT07QtNkOZP43 GGqYpZAkm3dLjiez7G+pCFRKVDVpu/2Ha7CCVEZzBlhYE6YVczYYoaraWpLFZXvhVXVq nQ4j1yf9ma3D2b3S8+Yt8gOHNl+l2sF+4mMjCsiM7qfapBIyoZynpgmA5eoydomzavmP NDGQ== X-Gm-Message-State: AOAM532Y9hElWk2oFjx9BeOh5VhgyC33kr1IbZliuz/kxmyECt5c0rvu ASThkGuYPTEUS51LTjH89BI= 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 Cc: Steve Lee 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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; -- 2.17.1