From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752303Ab3LCIke (ORCPT ); Tue, 3 Dec 2013 03:40:34 -0500 Received: from mail-ie0-f181.google.com ([209.85.223.181]:37867 "EHLO mail-ie0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751766Ab3LCIkd (ORCPT ); Tue, 3 Dec 2013 03:40:33 -0500 Date: Tue, 3 Dec 2013 08:40:26 +0000 From: Lee Jones To: Lars-Peter Clausen Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linus.walleij@linaro.org, broonie@kernel.org, alsa-devel@alsa-project.org Subject: Re: [alsa-devel] [PATCH 3/3] ASoC: ux500: Dynamically fill DAI driver data on probe Message-ID: <20131203084026.GC11828@lee--X1> References: <1386007222-10081-1-git-send-email-lee.jones@linaro.org> <1386007222-10081-3-git-send-email-lee.jones@linaro.org> <529CCD2F.3060206@metafoo.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <529CCD2F.3060206@metafoo.de> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 02 Dec 2013, Lars-Peter Clausen wrote: > On 12/02/2013 07:00 PM, Lee Jones wrote: > [...] > > +void ux500_msp_populate_dai_drv(struct snd_soc_dai_driver *ux500_msp_dai_drv) > > +{ > > + ux500_msp_dai_drv->probe = ux500_msp_dai_probe; > > + ux500_msp_dai_drv->suspend = NULL; > > + ux500_msp_dai_drv->resume = NULL; > > + ux500_msp_dai_drv->playback.channels_min = UX500_MSP_MIN_CHANNELS; > > + ux500_msp_dai_drv->playback.channels_max = UX500_MSP_MAX_CHANNELS; > > + ux500_msp_dai_drv->playback.rates = UX500_I2S_RATES; > > + ux500_msp_dai_drv->playback.formats = UX500_I2S_FORMATS; > > + ux500_msp_dai_drv->capture.channels_min = UX500_MSP_MIN_CHANNELS; > > + ux500_msp_dai_drv->capture.channels_max = UX500_MSP_MAX_CHANNELS; > > + ux500_msp_dai_drv->capture.rates = UX500_I2S_RATES; > > + ux500_msp_dai_drv->capture.formats = UX500_I2S_FORMATS; > > + ux500_msp_dai_drv->ops = ux500_msp_dai_ops; > > }; > > You can just use the same static driver for all devices. No need to > dynamically allocate it. How do you mean? Just create a 'static struct' instead? > > static const struct snd_soc_component_driver ux500_msp_component = { > > @@ -809,6 +742,7 @@ static const struct snd_soc_component_driver ux500_msp_component = { > > static int ux500_msp_drv_probe(struct platform_device *pdev) > > { > > struct ux500_msp_i2s_drvdata *drvdata; > > + struct snd_soc_dai_driver *ux500_msp_dai_drv; > > int ret = 0; > > > > dev_dbg(&pdev->dev, "%s: Enter (pdev->name = %s).\n", __func__, > > @@ -863,8 +797,18 @@ static int ux500_msp_drv_probe(struct platform_device *pdev) > > } > > dev_set_drvdata(&pdev->dev, drvdata); > > > > + ux500_msp_dai_drv = devm_kzalloc(&pdev->dev, > > + sizeof(*ux500_msp_dai_drv), > > + GFP_KERNEL); > > + if (!ux500_msp_dai_drv) { > > + ret = -ENOMEM; > > + goto err_init_msp; > > + } > > + > > + ux500_msp_populate_dai_drv(ux500_msp_dai_drv); > > + > > ret = snd_soc_register_component(&pdev->dev, &ux500_msp_component, > > - &ux500_msp_dai_drv[drvdata->msp->id], 1); > > + ux500_msp_dai_drv, 1); > > if (ret < 0) { > > dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n", > > __func__, drvdata->msp->id); > > > -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog