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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=SNKSc+GEn/EdH6/bPD9md/0+u0hqwDic45ePQqsW3+I=; b=PUYO2gXET4wU9CmpVKRwQf6LgW3Id1bORKzhFQl+K3C76PbOF+JhC31uqGiqJbMLHw E+EHKZ6jIla5a03oNK7Khz4e3INWgzMj5rxEqjt7I+jpRmKvZ48Pp1yvD57deQMtMzwS C8FslMUYrH9a/6muFsGxcO/lbKpEfB6b03iTaRtnsJ/Jxmt+6furN1zwkQK/dKtZ1eod sSi/HvOBfDcOJZXYcso1KC0OUZP4saee6qkgwrqAIkJO6IzkbUCQsG1A+lZfg2xiUQr6 EKO1vIzu3VRTzkp4gHYlaiYawa2S4AxcBcGUoql78IuUbd7sHNhTEBMpxjjOHtZtKz2n bTbg== X-Gm-Message-State: AOAM5304KKxt9joog9fTeharHsbfWf7TaTmMnUXpI4RpXAMm4OUYXKlz WdU9xh0VzSgdr8ab9K2/iUH1vgovQJ+l X-Google-Smtp-Source: ABdhPJxM6PEilULdGs6YxoZxfrFSXlS3hLcXz3JmOi+zrB/5iBjg96wVLCCTUPyf50gdBZNvKN0+NiK85Miw X-Received: from tzungbi-z840.tpe.corp.google.com ([2401:fa00:1:b:725a:fff:fe41:c6a5]) (user=tzungbi job=sendgmr) by 2002:a05:6214:1266:: with SMTP id r6mr6660450qvv.12.1607571414555; Wed, 09 Dec 2020 19:36:54 -0800 (PST) Date: Thu, 10 Dec 2020 11:36:17 +0800 In-Reply-To: <20201210033617.79300-1-tzungbi@google.com> Message-Id: <20201210033617.79300-3-tzungbi@google.com> Mime-Version: 1.0 References: <20201210033617.79300-1-tzungbi@google.com> X-Mailer: git-send-email 2.29.2.576.ga3fc446d84-goog Subject: [PATCH v2 2/2] ASoC: rt1015p: delay 300ms after SDB pulling high for calibration From: Tzung-Bi Shih To: broonie@kernel.org Cc: tzungbi@google.com, alsa-devel@alsa-project.org 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" RT1015p needs 300ms delay after SDB pulling high for internal calibration during the power on sequence. Delays 300ms right before data sends out to avoid data truncated. Signed-off-by: Tzung-Bi Shih --- sound/soc/codecs/rt1015p.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/codecs/rt1015p.c b/sound/soc/codecs/rt1015p.c index 397083ee5b37..bba638e1eb6a 100644 --- a/sound/soc/codecs/rt1015p.c +++ b/sound/soc/codecs/rt1015p.c @@ -4,6 +4,7 @@ // // Copyright 2020 The Linux Foundation. All rights reserved. +#include #include #include #include @@ -19,6 +20,7 @@ struct rt1015p_priv { struct gpio_desc *sdb; + bool calib_done; }; static int rt1015p_sdb_event(struct snd_soc_dapm_widget *w, @@ -36,6 +38,11 @@ static int rt1015p_sdb_event(struct snd_soc_dapm_widget *w, case SND_SOC_DAPM_PRE_PMU: gpiod_set_value(rt1015p->sdb, 1); dev_dbg(component->dev, "set sdb to 1"); + + if (!rt1015p->calib_done) { + msleep(300); + rt1015p->calib_done = true; + } break; case SND_SOC_DAPM_POST_PMD: gpiod_set_value(rt1015p->sdb, 0);