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 F23A4C433EF for ; Mon, 28 Mar 2022 02:12:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237485AbiC1CNr (ORCPT ); Sun, 27 Mar 2022 22:13:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232626AbiC1CNo (ORCPT ); Sun, 27 Mar 2022 22:13:44 -0400 Received: from mail-pj1-x1042.google.com (mail-pj1-x1042.google.com [IPv6:2607:f8b0:4864:20::1042]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 905904ECD6 for ; Sun, 27 Mar 2022 19:12:05 -0700 (PDT) Received: by mail-pj1-x1042.google.com with SMTP id jx9so12653076pjb.5 for ; Sun, 27 Mar 2022 19:12:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id; bh=rUHIWinBLG6g3Xi9+MUcsHpYsUZn1UkahgGOhqUSwAo=; b=ByyC85NIdi1Ve9pqan/WfzM2XYMfuKn3CCtZANGGya2Ss2oL4SZYsyVnf0OEXVxqM+ NlWfBOfMsvpFMBHl8ERRxXmXQtuzccHXUlYyM9m/uRKOMCz6QzS5xAaSboA5lDQTSx2s yt2c+lBVhmyV/cfJpPpmzbZ+WnXCRFdcJbXGrmGyKdiEyIlle0UKaNumtHMKD09ZyvRo ER4DmEYTfjFQdFg2653XMB3h3c9hvLkq1PQhnPmvKj9+lAr9lO/Ptwejnqm9oYLDjgvI H34KW+QREWOLw0hNIHLsV5CUhGPPFHIdlB8xooOeY1/e4UyH39Zh23M1Hn6d9sJWL8np 7Xmg== 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=rUHIWinBLG6g3Xi9+MUcsHpYsUZn1UkahgGOhqUSwAo=; b=a+IxkWe2PP7a9qbV9LIX+S31+oDk30pxTbp5zPYZMR81lxgf7Kq17wMU8+dYhczp/c mQSQKqkYEN8/PPzEyYxEx72uwkn6O22dFSaAvuKHNZgW6UoMZXM6HVjUxcnrQ200KnUD tmriM9tMVuIbpygJTIdRN9QXCjsYIEYq3gZwf/TTo8eYkrhVApPEydPPPanO4UgLZI/k BP2cyvJs4SbPDwPgBn1a3Jzghw95A+PgnxFAwtl74s1TfDChNi7i0E5o3k4JG9vJ3PE9 wKSSt46rnSXGYjr5ZB3CrN9gMf5iIDAv44TtxFCBIUgqMR2XlMBd9HNpPrnF3LEA/BWe aKRQ== X-Gm-Message-State: AOAM532PDp5SDEAKrA/dhtb/c1ezcXppe64r47yPTLCeKZxIso9wmDiy KqwOD8OW+QxQx+A3IyedsXI= X-Google-Smtp-Source: ABdhPJw/rhtmPMAo55tnqm5NaD1eJHN71Eb8+RgZ283zFRwrUZKw9etqglyxTYSO75pWg2fPCGMGdg== X-Received: by 2002:a17:902:9a8d:b0:155:ff17:c9fc with SMTP id w13-20020a1709029a8d00b00155ff17c9fcmr7396091plp.28.1648433525098; Sun, 27 Mar 2022 19:12:05 -0700 (PDT) Received: from localhost.localdomain ([211.212.143.131]) by smtp.gmail.com with ESMTPSA id c63-20020a624e42000000b004fa9ee41b7bsm13322058pfb.217.2022.03.27.19.12.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Mar 2022 19:12:04 -0700 (PDT) From: Steve Lee To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, ryans.lee@maximintegrated.com, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org Cc: krzk@kernel.org, nuno.sa@analog.com, Steve Lee Subject: [V3 1/2] ASoC: max98390: Add reset gpio control Date: Mon, 28 Mar 2022 11:11:38 +0900 Message-Id: <20220328021139.8700-1-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 | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/sound/soc/codecs/max98390.c b/sound/soc/codecs/max98390.c index 40fd6f363f35..05df9b85d9b0 100644 --- a/sound/soc/codecs/max98390.c +++ b/sound/soc/codecs/max98390.c @@ -1022,6 +1022,7 @@ static int max98390_i2c_probe(struct i2c_client *i2c, struct max98390_priv *max98390 = NULL; struct i2c_adapter *adapter = i2c->adapter; + struct gpio_desc *reset_gpio; ret = i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE @@ -1073,6 +1074,17 @@ static int max98390_i2c_probe(struct i2c_client *i2c, return ret; } + reset_gpio = devm_gpiod_get_optional(&i2c->dev, + "reset", GPIOD_OUT_LOW); + + /* Power on device */ + if (reset_gpio) { + usleep_range(1000, 2000); + /* bring out of reset */ + gpiod_set_value_cansleep(reset_gpio, 1); + usleep_range(1000, 2000); + } + /* Check Revision ID */ ret = regmap_read(max98390->regmap, MAX98390_R24FF_REV_ID, ®); -- 2.17.1