From patchwork Wed Oct 7 11:18:22 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 7344461 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 6BE8BBEEA4 for ; Wed, 7 Oct 2015 11:19:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 939ED20620 for ; Wed, 7 Oct 2015 11:19:48 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id 68259205F9 for ; Wed, 7 Oct 2015 11:19:47 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 9C4B6266283; Wed, 7 Oct 2015 13:19:46 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_LOW, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id 686FF265D47; Wed, 7 Oct 2015 13:19:04 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 42AED265FCB; Wed, 7 Oct 2015 13:19:03 +0200 (CEST) Received: from mezzanine.sirena.org.uk (mezzanine.sirena.org.uk [106.187.55.193]) by alsa0.perex.cz (Postfix) with ESMTP id 84D6C265D47 for ; Wed, 7 Oct 2015 13:18:59 +0200 (CEST) Received: from [89.101.192.72] (helo=finisterre) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1ZjmkL-00059d-Of; Wed, 07 Oct 2015 11:18:58 +0000 Received: from broonie by finisterre with local (Exim 4.86) (envelope-from ) id 1Zjmjm-0006QY-CN; Wed, 07 Oct 2015 12:18:22 +0100 From: Mark Brown To: Adam Thomson , Mark Brown In-Reply-To: <413ccdb3a8f209045fad3063e10919a6e6ccb757.1444214947.git.Adam.Thomson.Opensource@diasemi.com> Message-Id: Date: Wed, 07 Oct 2015 12:18:22 +0100 X-SA-Exim-Connect-IP: 89.101.192.72 X-SA-Exim-Mail-From: broonie@sirena.org.uk X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Cc: alsa-devel@alsa-project.org Subject: [alsa-devel] Applied "ASoC: da7219: Improve error checking of mclk enable/disable" to the asoc tree X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP The patch ASoC: da7219: Improve error checking of mclk enable/disable has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From ba856fbd602175d386ab5a4fc0fdd89b912546cb Mon Sep 17 00:00:00 2001 From: Adam Thomson Date: Wed, 7 Oct 2015 11:57:14 +0100 Subject: [PATCH] ASoC: da7219: Improve error checking of mclk enable/disable Should only try to enable/disable the provided mclk, during bias level changes, if it's not NULL. Also return value of clk_prepare_enable() should be checked and dealt with accordingly. Signed-off-by: Adam Thomson Signed-off-by: Mark Brown --- sound/soc/codecs/da7219.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index adcc079..abba4b3 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1494,6 +1494,7 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec); + int ret; switch (level) { case SND_SOC_BIAS_ON: @@ -1502,7 +1503,14 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_STANDBY: if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { /* MCLK */ - clk_prepare_enable(da7219->mclk); + if (da7219->mclk) { + ret = clk_prepare_enable(da7219->mclk); + if (ret) { + dev_err(codec->dev, + "Failed to enable mclk\n"); + return ret; + } + } /* Master bias */ snd_soc_update_bits(codec, DA7219_REFERENCES, @@ -1528,7 +1536,8 @@ static int da7219_set_bias_level(struct snd_soc_codec *codec, } /* MCLK */ - clk_disable_unprepare(da7219->mclk); + if (da7219->mclk) + clk_disable_unprepare(da7219->mclk); break; }