From patchwork Fri Sep 27 08:00:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 1990179 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev+bounces-1635-incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=patchwork.ozlabs.org) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4XFNlF2FStz1xtJ for ; Fri, 27 Sep 2024 18:23:21 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4XFNlB1GWHz30Gf; Fri, 27 Sep 2024 18:23:18 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=92.121.34.13 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1727425398; cv=none; b=AkTKoLd63UOMxpPeLbci2LnecoQ+3UFmblMovUmG1mxfcCHqeuHQqv4OzeJQUXh+u2hcD4q9KPAKp+MT+XDa9OqzxGXNr0rL88kgnBF85yjXixP6bEUG1PTngE3JJs3UAa45r6vDh6sV9HEjXy1kGu6x2Fnb1IDygyRjMHOZrztXnm7uo6AxmhNqKtA9O2Ktb6D7YyiZemPoZxS8UwM01hL/OKAQKVDDYYMXVuQnhxOCUKp3e+EXNIRzzfgN81XCoByukmeDxEQIqxAJm0bRL6UD1ZYVuserrb6BKGTL8FXhuF12lnfup5oFMaS9+k0mZDUrafivrw9A1ahDC6/zUA== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1727425398; c=relaxed/relaxed; bh=hAMIg+xAC2+zUlS+Cx8zruw+iWDthF8DtZpHmDlFdrw=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References; b=GhpSh7koXiqBDDp5+K+qJh7Yenc4CGj5OpI8U00UaC4qIkNIk4tGaw9AF0pOYgCDAKWFPeXA928GTaa1c5ytkYmiNxwY7S5pTD/ufpM2GzWix7Ht/0wK1n8jTTsNmPEKzlNyDs69m1wQ74RlNox5xUFvZo0n8/4EfnJrCe4LRjQSmY7ub2bxuXVVfnPbjwgGGenI++rtNH0Zj/JV2fowUuhr0Fftv0F4K2XshTM8NPHeSd08oatzSbCWoyiGqay18FguBNsqKWZ9VB7QibPnWh6jcgV3pxLnm7TPY/WuO+GAvSKXiFfK04XenNt+UXKUZfwZ7R7x+L8icj7dvppHmQ== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass (client-ip=92.121.34.13; helo=inva020.nxp.com; envelope-from=shengjiu.wang@nxp.com; receiver=lists.ozlabs.org) smtp.mailfrom=nxp.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nxp.com (client-ip=92.121.34.13; helo=inva020.nxp.com; envelope-from=shengjiu.wang@nxp.com; receiver=lists.ozlabs.org) Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4XFNl93vPLz30Dw for ; Fri, 27 Sep 2024 18:23:17 +1000 (AEST) Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 6814A1A1B60; Fri, 27 Sep 2024 10:23:14 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 379251A1B45; Fri, 27 Sep 2024 10:23:14 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id ED3DA183DC02; Fri, 27 Sep 2024 16:23:12 +0800 (+08) From: Shengjiu Wang To: shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/3] ASoC: fsl_micfil: Add mclk enable flag Date: Fri, 27 Sep 2024 16:00:30 +0800 Message-Id: <1727424031-19551-3-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1727424031-19551-1-git-send-email-shengjiu.wang@nxp.com> References: <1727424031-19551-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Post: List-Subscribe: , , List-Unsubscribe: Previously the mclk is enabled in probe() stage, which is not necessary. Move mclk enablement to hw_params() and mclk disablement to hw_free() will be more efficient. 'mclk_flag' is used for this case. Signed-off-by: Shengjiu Wang --- sound/soc/fsl/fsl_micfil.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index c347cb3a4712..6ecf46e9ac4c 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -58,6 +58,7 @@ struct fsl_micfil { int vad_detected; struct fsl_micfil_verid verid; struct fsl_micfil_param param; + bool mclk_flag; /* mclk enable flag */ }; struct fsl_micfil_soc_data { @@ -693,7 +694,6 @@ static int fsl_micfil_reparent_rootclk(struct fsl_micfil *micfil, unsigned int s clk = micfil->mclk; /* Disable clock first, for it was enabled by pm_runtime */ - clk_disable_unprepare(clk); fsl_asoc_reparent_pll_clocks(dev, clk, micfil->pll8k_clk, micfil->pll11k_clk, ratio); ret = clk_prepare_enable(clk); @@ -730,6 +730,8 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, if (ret) return ret; + micfil->mclk_flag = true; + ret = clk_set_rate(micfil->mclk, rate * clk_div * osr * 8); if (ret) return ret; @@ -764,6 +766,17 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, return 0; } +static int fsl_micfil_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + + clk_disable_unprepare(micfil->mclk); + micfil->mclk_flag = false; + + return 0; +} + static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); @@ -806,6 +819,7 @@ static const struct snd_soc_dai_ops fsl_micfil_dai_ops = { .startup = fsl_micfil_startup, .trigger = fsl_micfil_trigger, .hw_params = fsl_micfil_hw_params, + .hw_free = fsl_micfil_hw_free, }; static struct snd_soc_dai_driver fsl_micfil_dai = { @@ -1279,7 +1293,8 @@ static int fsl_micfil_runtime_suspend(struct device *dev) regcache_cache_only(micfil->regmap, true); - clk_disable_unprepare(micfil->mclk); + if (micfil->mclk_flag) + clk_disable_unprepare(micfil->mclk); clk_disable_unprepare(micfil->busclk); return 0; @@ -1294,10 +1309,12 @@ static int fsl_micfil_runtime_resume(struct device *dev) if (ret < 0) return ret; - ret = clk_prepare_enable(micfil->mclk); - if (ret < 0) { - clk_disable_unprepare(micfil->busclk); - return ret; + if (micfil->mclk_flag) { + ret = clk_prepare_enable(micfil->mclk); + if (ret < 0) { + clk_disable_unprepare(micfil->busclk); + return ret; + } } regcache_cache_only(micfil->regmap, false);