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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 A862CC433E3 for ; Thu, 25 Mar 2021 11:32:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7114861A38 for ; Thu, 25 Mar 2021 11:32:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231750AbhCYLb5 (ORCPT ); Thu, 25 Mar 2021 07:31:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:35906 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231738AbhCYL3b (ORCPT ); Thu, 25 Mar 2021 07:29:31 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 30D0D61A5C; Thu, 25 Mar 2021 11:27:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616671658; bh=LRq+CcQWSfPDIdltEEUZePB2pmtJGylrqG811skKSxA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eWibcwL8cbeRx2E/Bd9ywlbcGXPJ4yvq9OulWdUyBVXU3FzYsdgcSyq5C6U/DYwq+ JKtKPfq6dMe7bX/JeArQufqr/fbwLkHKk3dSlt0W0OUkcBtMgts98FvebhQornlmcs JGrr7p5F04eAajvzPLqDHwLMy9TQApOMO6TdvZ+nNIitOrOqn1a7rAe727pNjCVlrT b5WrDSroYKISEFrdFnQinRxHyqyYgHdYO8jXFG2NVA+39pQjayyLUCk0cQbVuSLiFO mNXtVkm2w+aiEBb/p3lboqS5jZ1b52+r36f7we2J6AjDIqRfMolzj3uxOt8uNy86Es bBDbHJ2EJZyoA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Lucas Tanure , Mark Brown , Sasha Levin , alsa-devel@alsa-project.org, patches@opensource.cirrus.com Subject: [PATCH AUTOSEL 4.19 10/20] ASoC: cs42l42: Always wait at least 3ms after reset Date: Thu, 25 Mar 2021 07:27:14 -0400 Message-Id: <20210325112724.1928174-10-sashal@kernel.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210325112724.1928174-1-sashal@kernel.org> References: <20210325112724.1928174-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@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 a8ba518ba043..fddfd227a9c0 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -1800,7 +1800,7 @@ 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, @@ -1925,6 +1925,7 @@ 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 23b1a63315ca..bcaf4f22408d 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -744,6 +744,7 @@ #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