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 X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 2FA58C43460 for ; Mon, 5 Apr 2021 08:58:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DDCE66139E for ; Mon, 5 Apr 2021 08:58:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233942AbhDEI6i (ORCPT ); Mon, 5 Apr 2021 04:58:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:37946 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233459AbhDEI6B (ORCPT ); Mon, 5 Apr 2021 04:58:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 133D561245; Mon, 5 Apr 2021 08:57:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617613075; bh=UFjtXGfMkx8GBJhmElNVLGQq4L9FRPjeQOHTH9erKlQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RHo2gdkjL7vMtoC9Uu+91nZVD+d7UpdO0S37NWFYoRuhLDfyEyefJSbs87KPwG5zl m87eAQgTKX4iEEHEVT2LRopKGk6WMD3ce3mzUVzq2WATcnpfs/ni89bS32GIRPffHF cYLq+YFeHOcxopFcPjP/7wm6ACie4yG+PRliBJPI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lucas Tanure , Mark Brown , Sasha Levin Subject: [PATCH 4.14 10/52] ASoC: cs42l42: Always wait at least 3ms after reset Date: Mon, 5 Apr 2021 10:53:36 +0200 Message-Id: <20210405085022.337043554@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210405085021.996963957@linuxfoundation.org> References: <20210405085021.996963957@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lucas Tanure [ Upstream commit 19325cfea04446bc79b36bffd4978af15f46a00e ] This delay is part of the power-up sequence defined in the datasheet. A runtime_resume is a power-up so must also include the delay. Signed-off-by: Lucas Tanure Link: https://lore.kernel.org/r/20210305173442.195740-6-tanureal@opensource.cirrus.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/codecs/cs42l42.c | 3 ++- sound/soc/codecs/cs42l42.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index ec322fda3c18..39adb2fdd003 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -1809,7 +1809,7 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client, dev_dbg(&i2c_client->dev, "Found reset GPIO\n"); gpiod_set_value_cansleep(cs42l42->reset_gpio, 1); } - mdelay(3); + usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2); /* Request IRQ */ ret = devm_request_threaded_irq(&i2c_client->dev, @@ -1936,6 +1936,7 @@ static int cs42l42_runtime_resume(struct device *dev) } gpiod_set_value_cansleep(cs42l42->reset_gpio, 1); + usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2); regcache_cache_only(cs42l42->regmap, false); regcache_sync(cs42l42->regmap); diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index d87a0a5322d5..3d5fa343db96 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -743,6 +743,7 @@ #define CS42L42_FRAC2_VAL(val) (((val) & 0xff0000) >> 16) #define CS42L42_NUM_SUPPLIES 5 +#define CS42L42_BOOT_TIME_US 3000 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = { "VA", -- 2.30.1