From nobody Fri Apr 3 08:45:39 2026 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 C93A6ECAAA1 for ; Thu, 15 Sep 2022 09:46:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229979AbiIOJqu (ORCPT ); Thu, 15 Sep 2022 05:46:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230058AbiIOJpn (ORCPT ); Thu, 15 Sep 2022 05:45:43 -0400 Received: from hutie.ust.cz (hutie.ust.cz [185.8.165.127]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFD4D99B5A; Thu, 15 Sep 2022 02:45:40 -0700 (PDT) From: =?UTF-8?q?Martin=20Povi=C5=A1er?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cutebit.org; s=mail; t=1663235134; bh=BTEvJw27Nhc3mokcYBqX/ytgif77xcp9KsV69JU4ANA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=s2QTzLGnbirfxygkHhR0TmtusTpo2Jfj9pbSPU2u97JK+7bk1bBdddcMbuHYzLrhT FowN8VHGtSppIGoqd+kLw2nlxTcgZQhOk5WOmABgx18Q3RZTddu+vfoKoDto+gslCa XvB3+9rwMlzjJzhpt5tiwJQPWbuhiL9p9kSJ4zOs= To: James Schulman , David Rhodes , Lucas Tanure , Richard Fitzgerald , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , =?UTF-8?q?Martin=20Povi=C5=A1er?= Cc: Charles Keepax , ChiYuan Huang , Matt Flax , Lukas Bulwahn , Pierre-Louis Bossart , - , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, asahi@lists.linux.dev Subject: [PATCH v2 05/11] ASoC: cs42l42: Split cs42l42_resume into two functions Date: Thu, 15 Sep 2022 11:44:38 +0200 Message-Id: <20220915094444.11434-6-povik+lin@cutebit.org> In-Reply-To: <20220915094444.11434-1-povik+lin@cutebit.org> References: <20220915094444.11434-1-povik+lin@cutebit.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Richard Fitzgerald On SoundWire the system resume cannot restore registers until the host controller has re-enumerated the peripheral. This patch splits cs42l42_resume() into two functions, one to power up and the other to restore registers, ready for adding SoundWire support. Signed-off-by: Richard Fitzgerald Signed-off-by: Martin Povi=C5=A1er --- sound/soc/codecs/cs42l42.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 427b29db2252..156d1b181cef 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -2183,6 +2183,15 @@ static int __maybe_unused cs42l42_resume(struct devi= ce *dev) gpiod_set_value_cansleep(cs42l42->reset_gpio, 1); usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2); =20 + dev_dbg(dev, "System resume powered up\n"); + + return 0; +} + +static void __maybe_unused cs42l42_resume_restore(struct device *dev) +{ + struct cs42l42_private *cs42l42 =3D dev_get_drvdata(dev); + regcache_cache_only(cs42l42->regmap, false); regcache_mark_dirty(cs42l42->regmap); =20 @@ -2195,6 +2204,17 @@ static int __maybe_unused cs42l42_resume(struct devi= ce *dev) mutex_unlock(&cs42l42->irq_lock); =20 dev_dbg(dev, "System resumed\n"); +} + +static int __maybe_unused cs42l42_i2c_resume(struct device *dev) +{ + int ret; + + ret =3D cs42l42_resume(dev); + if (ret) + return ret; + + cs42l42_resume_restore(dev); =20 return 0; } @@ -2413,7 +2433,7 @@ static int cs42l42_i2c_remove(struct i2c_client *i2c_= client) } =20 static const struct dev_pm_ops cs42l42_pm_ops =3D { - SET_SYSTEM_SLEEP_PM_OPS(cs42l42_suspend, cs42l42_resume) + SET_SYSTEM_SLEEP_PM_OPS(cs42l42_suspend, cs42l42_i2c_resume) }; =20 #ifdef CONFIG_OF --=20 2.33.0