From patchwork Thu Aug 9 15:47:33 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Jones X-Patchwork-Id: 1301801 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 3C89ADFF7B for ; Thu, 9 Aug 2012 15:54:11 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1SzUzz-0002s3-Ie; Thu, 09 Aug 2012 15:50:11 +0000 Received: from mail-wi0-f171.google.com ([209.85.212.171]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1SzUyD-0002Dd-Px for linux-arm-kernel@lists.infradead.org; Thu, 09 Aug 2012 15:48:25 +0000 Received: by wibhq4 with SMTP id hq4so375534wib.0 for ; Thu, 09 Aug 2012 08:48:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=I0FOgmygSJxkDuEcIMhp+QCkz+6SXFfXxBVH3txzafk=; b=QCqeMiNd2yWhj+wSolhgboLXqTo4T0UiCcXNQKgUenK2ZvxaoEgrMjamhs6qktBOHq AKrWf4ei5PFTTiqsBkjzr49diTcXiITvNaFQg4EKg+vE6gaqFA7/cnsjxRLKGXIoqdh4 iBrKvJHwJj8WphMe5/lPZiXIZ6GSgs8duHwOIG+/XPBUc32I6O+2ltk5/oGOjdi8DTGK 9DfRORYs2b3uJueDENX8jjgaoj1KWfknHLkJvcm+Tu5xp5uor5sU59mkO00bXk4JKnmF RouTEjN7pHLZijeN7cgIy6zPRnabEZLt6AJgeMXIiYNnP37NFzPmlT0PQtOh8Vci9P7+ VPYQ== Received: by 10.180.100.133 with SMTP id ey5mr3994440wib.4.1344527300690; Thu, 09 Aug 2012 08:48:20 -0700 (PDT) Received: from localhost.localdomain (cpc1-aztw13-0-0-cust473.18-1.cable.virginmedia.com. [77.102.241.218]) by mx.google.com with ESMTPS id q4sm2278954wix.9.2012.08.09.08.48.19 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 09 Aug 2012 08:48:20 -0700 (PDT) From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 07/22] ASoC: Ux500: Initialise PCM from MSP probe rather than as a device Date: Thu, 9 Aug 2012 16:47:33 +0100 Message-Id: <1344527268-5964-8-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1344527268-5964-1-git-send-email-lee.jones@linaro.org> References: <1344527268-5964-1-git-send-email-lee.jones@linaro.org> X-Gm-Message-State: ALoCoQlOyQkG/KAE0LI+LbF6BtTlNu8L2TyAFPKrdOfJ9G39gVADqd3LiiHb/pH19Nva7HEjabiS X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.212.171 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: alsa-devel@alsa-project.org, linus.walleij@stericsson.com, arnd@arndb.de, broonie@opensource.wolfsonmicro.com, STEricsson_nomadik_linux@list.st.com, Lee Jones X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The PCM is a pseudo-device. It doesn't have any of it's own registers or hardware. It rather acts as a layer of abstraction for DMA transfers. Hence, instead of classifying it as a device in its own right, we call the initialisation from the MSP driver. CC: alsa-devel@alsa-project.org Signed-off-by: Lee Jones Acked-by: Linus Walleij --- sound/soc/ux500/mop500.c | 4 ++-- sound/soc/ux500/ux500_msp_dai.c | 14 +++++++++++++- sound/soc/ux500/ux500_pcm.c | 19 ++++--------------- sound/soc/ux500/ux500_pcm.h | 3 +++ 4 files changed, 22 insertions(+), 18 deletions(-) diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c index 6840df7..fe6223a 100644 --- a/sound/soc/ux500/mop500.c +++ b/sound/soc/ux500/mop500.c @@ -33,7 +33,7 @@ struct snd_soc_dai_link mop500_dai_links[] = { .stream_name = "ab8500_0", .cpu_dai_name = "ux500-msp-i2s.1", .codec_dai_name = "ab8500-codec-dai.0", - .platform_name = "ux500-pcm.0", + .platform_name = "ux500-msp-i2s.1", .codec_name = "ab8500-codec.0", .init = mop500_ab8500_machine_init, .ops = mop500_ab8500_ops, @@ -43,7 +43,7 @@ struct snd_soc_dai_link mop500_dai_links[] = { .stream_name = "ab8500_1", .cpu_dai_name = "ux500-msp-i2s.3", .codec_dai_name = "ab8500-codec-dai.1", - .platform_name = "ux500-pcm.0", + .platform_name = "ux500-msp-i2s.3", .codec_name = "ab8500-codec.0", .init = NULL, .ops = mop500_ab8500_ops, diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c index 0f7dd49..3476d6a 100644 --- a/sound/soc/ux500/ux500_msp_dai.c +++ b/sound/soc/ux500/ux500_msp_dai.c @@ -28,6 +28,7 @@ #include "ux500_msp_i2s.h" #include "ux500_msp_dai.h" +#include "ux500_pcm.h" static int setup_pcm_multichan(struct snd_soc_dai *dai, struct ux500_msp_config *msp_config) @@ -806,11 +807,20 @@ static int __devinit ux500_msp_drv_probe(struct platform_device *pdev) goto err_init_msp; } + ret = ux500_pcm_register_platform(pdev); + if (ret < 0) { + dev_err(&pdev->dev, + "Error: %s: Failed to register PCM platform device!\n", + __func__); + goto err_reg_plat; + } + return 0; +err_reg_plat: + snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(ux500_msp_dai_drv)); err_init_msp: clk_put(drvdata->clk); - err_clk: devm_regulator_put(drvdata->reg_vape); @@ -821,6 +831,8 @@ static int __devexit ux500_msp_drv_remove(struct platform_device *pdev) { struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(&pdev->dev); + ux500_pcm_unregister_platform(pdev); + snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(ux500_msp_dai_drv)); devm_regulator_put(drvdata->reg_vape); diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c index 1a04e24..894c9f4 100644 --- a/sound/soc/ux500/ux500_pcm.c +++ b/sound/soc/ux500/ux500_pcm.c @@ -282,7 +282,7 @@ static struct snd_soc_platform_driver ux500_pcm_soc_drv = { .pcm_new = ux500_pcm_new, }; -static int __devexit ux500_pcm_drv_probe(struct platform_device *pdev) +int __devinit ux500_pcm_register_platform(struct platform_device *pdev) { int ret; @@ -296,23 +296,12 @@ static int __devexit ux500_pcm_drv_probe(struct platform_device *pdev) return 0; } +EXPORT_SYMBOL_GPL(ux500_pcm_register_platform); -static int __devinit ux500_pcm_drv_remove(struct platform_device *pdev) +int __devexit ux500_pcm_unregister_platform(struct platform_device *pdev) { snd_soc_unregister_platform(&pdev->dev); return 0; } - -static struct platform_driver ux500_pcm_driver = { - .driver = { - .name = "ux500-pcm", - .owner = THIS_MODULE, - }, - - .probe = ux500_pcm_drv_probe, - .remove = __devexit_p(ux500_pcm_drv_remove), -}; -module_platform_driver(ux500_pcm_driver); - -MODULE_LICENSE("GPL v2"); +EXPORT_SYMBOL_GPL(ux500_pcm_unregister_platform); diff --git a/sound/soc/ux500/ux500_pcm.h b/sound/soc/ux500/ux500_pcm.h index 77ed44d..76d3444 100644 --- a/sound/soc/ux500/ux500_pcm.h +++ b/sound/soc/ux500/ux500_pcm.h @@ -32,4 +32,7 @@ #define UX500_PLATFORM_PERIODS_MAX 48 #define UX500_PLATFORM_BUFFER_BYTES_MAX (2048 * PAGE_SIZE) +int ux500_pcm_register_platform(struct platform_device *pdev); +int ux500_pcm_unregister_platform(struct platform_device *pdev); + #endif