From patchwork Mon Oct 5 15:36:52 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 7328701 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 52B3C9F1D5 for ; Mon, 5 Oct 2015 15:37:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3F3A3206A0 for ; Mon, 5 Oct 2015 15:37:42 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id C3BF220660 for ; Mon, 5 Oct 2015 15:37:39 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id AB0742606DE; Mon, 5 Oct 2015 17:37:38 +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 B376E2606E5; Mon, 5 Oct 2015 17:37:36 +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 3BB1D2606F4; Mon, 5 Oct 2015 17:37:35 +0200 (CEST) Received: from mezzanine.sirena.org.uk (mezzanine.sirena.org.uk [106.187.55.193]) by alsa0.perex.cz (Postfix) with ESMTP id 815DA2606DE for ; Mon, 5 Oct 2015 17:37:27 +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 1Zj7pF-0003yu-Kl; Mon, 05 Oct 2015 15:37:20 +0000 Received: from broonie by finisterre with local (Exim 4.86) (envelope-from ) id 1Zj7oq-0001uV-8T; Mon, 05 Oct 2015 16:36:52 +0100 From: Mark Brown To: Maruthi Bayyavarapu , Alex Deucher , Mark Brown In-Reply-To: <1443217704-28814-2-git-send-email-alexander.deucher@amd.com> Message-Id: Date: Mon, 05 Oct 2015 16:36:52 +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: dwc: support dw i2s in slave mode" 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: dwc: support dw i2s in slave mode 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 1d957d862ac782eaf5803d4d4cf167708e4dc147 Mon Sep 17 00:00:00 2001 From: Maruthi Srinivas Bayyavarapu Date: Fri, 25 Sep 2015 17:48:22 -0400 Subject: [PATCH] ASoC: dwc: support dw i2s in slave mode dw i2s controller can work in slave mode, codec being master. dw i2s is made to support master/slave operation, by reading dwc register. Signed-off-by: Maruthi Bayyavarapu Signed-off-by: Alex Deucher Signed-off-by: Mark Brown --- include/sound/designware_i2s.h | 2 + sound/soc/dwc/designware_i2s.c | 92 +++++++++++++++++++++++++----------------- 2 files changed, 57 insertions(+), 37 deletions(-) diff --git a/include/sound/designware_i2s.h b/include/sound/designware_i2s.h index 3a8fca9..8966ba7 100644 --- a/include/sound/designware_i2s.h +++ b/include/sound/designware_i2s.h @@ -38,6 +38,8 @@ struct i2s_clk_config_data { struct i2s_platform_data { #define DWC_I2S_PLAY (1 << 0) #define DWC_I2S_RECORD (1 << 1) + #define DW_I2S_SLAVE (1 << 2) + #define DW_I2S_MASTER (1 << 3) unsigned int cap; int channel; u32 snd_fmts; diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c index a3e97b4..3a52f82 100644 --- a/sound/soc/dwc/designware_i2s.c +++ b/sound/soc/dwc/designware_i2s.c @@ -273,23 +273,25 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream, config->sample_rate = params_rate(params); - if (dev->i2s_clk_cfg) { - ret = dev->i2s_clk_cfg(config); - if (ret < 0) { - dev_err(dev->dev, "runtime audio clk config fail\n"); - return ret; - } - } else { - u32 bitclk = config->sample_rate * config->data_width * 2; - - ret = clk_set_rate(dev->clk, bitclk); - if (ret) { - dev_err(dev->dev, "Can't set I2S clock rate: %d\n", - ret); - return ret; + if (dev->capability & DW_I2S_MASTER) { + if (dev->i2s_clk_cfg) { + ret = dev->i2s_clk_cfg(config); + if (ret < 0) { + dev_err(dev->dev, "runtime audio clk config fail\n"); + return ret; + } + } else { + u32 bitclk = config->sample_rate * + config->data_width * 2; + + ret = clk_set_rate(dev->clk, bitclk); + if (ret) { + dev_err(dev->dev, "Can't set I2S clock rate: %d\n", + ret); + return ret; + } } } - return 0; } @@ -357,7 +359,8 @@ static int dw_i2s_suspend(struct snd_soc_dai *dai) { struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(dai); - clk_disable(dev->clk); + if (dev->capability & DW_I2S_MASTER) + clk_disable(dev->clk); return 0; } @@ -365,7 +368,8 @@ static int dw_i2s_resume(struct snd_soc_dai *dai) { struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(dai); - clk_enable(dev->clk); + if (dev->capability & DW_I2S_MASTER) + clk_enable(dev->clk); return 0; } @@ -443,6 +447,14 @@ static int dw_configure_dai(struct dw_i2s_dev *dev, dw_i2s_dai->capture.rates = rates; } + if (COMP1_MODE_EN(comp1)) { + dev_dbg(dev->dev, "designware: i2s master mode supported\n"); + dev->capability |= DW_I2S_MASTER; + } else { + dev_dbg(dev->dev, "designware: i2s slave mode supported\n"); + dev->capability |= DW_I2S_SLAVE; + } + return 0; } @@ -529,6 +541,7 @@ static int dw_i2s_probe(struct platform_device *pdev) struct resource *res; int ret; struct snd_soc_dai_driver *dw_i2s_dai; + const char *clk_id; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) { @@ -550,32 +563,35 @@ static int dw_i2s_probe(struct platform_device *pdev) return PTR_ERR(dev->i2s_base); dev->dev = &pdev->dev; + if (pdata) { + dev->capability = pdata->cap; + clk_id = NULL; ret = dw_configure_dai_by_pd(dev, dw_i2s_dai, res, pdata); - if (ret < 0) - return ret; + } else { + clk_id = "i2sclk"; + ret = dw_configure_dai_by_dt(dev, dw_i2s_dai, res); + } + if (ret < 0) + return ret; - dev->capability = pdata->cap; - dev->i2s_clk_cfg = pdata->i2s_clk_cfg; - if (!dev->i2s_clk_cfg) { - dev_err(&pdev->dev, "no clock configure method\n"); - return -ENODEV; + if (dev->capability & DW_I2S_MASTER) { + if (pdata) { + dev->i2s_clk_cfg = pdata->i2s_clk_cfg; + if (!dev->i2s_clk_cfg) { + dev_err(&pdev->dev, "no clock configure method\n"); + return -ENODEV; + } } + dev->clk = devm_clk_get(&pdev->dev, clk_id); - dev->clk = devm_clk_get(&pdev->dev, NULL); - } else { - ret = dw_configure_dai_by_dt(dev, dw_i2s_dai, res); + if (IS_ERR(dev->clk)) + return PTR_ERR(dev->clk); + + ret = clk_prepare_enable(dev->clk); if (ret < 0) return ret; - - dev->clk = devm_clk_get(&pdev->dev, "i2sclk"); } - if (IS_ERR(dev->clk)) - return PTR_ERR(dev->clk); - - ret = clk_prepare_enable(dev->clk); - if (ret < 0) - return ret; dev_set_drvdata(&pdev->dev, dev); ret = devm_snd_soc_register_component(&pdev->dev, &dw_i2s_component, @@ -597,7 +613,8 @@ static int dw_i2s_probe(struct platform_device *pdev) return 0; err_clk_disable: - clk_disable_unprepare(dev->clk); + if (dev->capability & DW_I2S_MASTER) + clk_disable_unprepare(dev->clk); return ret; } @@ -605,7 +622,8 @@ static int dw_i2s_remove(struct platform_device *pdev) { struct dw_i2s_dev *dev = dev_get_drvdata(&pdev->dev); - clk_disable_unprepare(dev->clk); + if (dev->capability & DW_I2S_MASTER) + clk_disable_unprepare(dev->clk); return 0; }