From patchwork Tue May 26 13:26:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 6480701 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 1585BC0433 for ; Tue, 26 May 2015 13:30:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3656420622 for ; Tue, 26 May 2015 13:30:20 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id E8FD4204AF for ; Tue, 26 May 2015 13:30:18 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id D80D126575E; Tue, 26 May 2015 15:30:17 +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=-1.9 required=5.0 tests=BAYES_00, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id 450D42654E8; Tue, 26 May 2015 15:27:42 +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 2D2282654B7; Tue, 26 May 2015 15:27:39 +0200 (CEST) Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153]) by alsa0.perex.cz (Postfix) with ESMTP id A6333264EFF for ; Tue, 26 May 2015 15:26:35 +0200 (CEST) Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id t4QDQXxL001502; Tue, 26 May 2015 08:26:33 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id t4QDQX6C030362; Tue, 26 May 2015 08:26:33 -0500 Received: from dlep33.itg.ti.com (157.170.170.75) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.224.2; Tue, 26 May 2015 08:26:33 -0500 Received: from dflp33.itg.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id t4QDQ9bP027427; Tue, 26 May 2015 08:26:30 -0500 From: Peter Ujfalusi To: , Date: Tue, 26 May 2015 16:26:00 +0300 Message-ID: <1432646768-12532-6-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.3.5 In-Reply-To: <1432646768-12532-1-git-send-email-peter.ujfalusi@ti.com> References: <1432646768-12532-1-git-send-email-peter.ujfalusi@ti.com> MIME-Version: 1.0 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Ulf Hansson , linux-spi@vger.kernel.org, linux-crypto@vger.kernel.org, linux-serial@vger.kernel.org, dmaengine@vger.kernel.org, dan.j.williams@intel.com, linux-omap@vger.kernel.org, linux-media@vger.kernel.org Subject: [alsa-devel] [PATCH 05/13] mmc: omap_hsmmc: Support for deferred probing when requesting DMA channels 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP Switch to use ma_request_slave_channel_compat_reason() to request the DMA channels. In case of error, return the error code we received including -EPROBE_DEFER Signed-off-by: Peter Ujfalusi CC: Ulf Hansson Acked-by: Ulf Hansson --- drivers/mmc/host/omap_hsmmc.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 57bb85930f81..d252478391ee 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2088,23 +2088,21 @@ static int omap_hsmmc_probe(struct platform_device *pdev) dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - host->rx_chan = - dma_request_slave_channel_compat(mask, omap_dma_filter_fn, - &rx_req, &pdev->dev, "rx"); + host->rx_chan = dma_request_slave_channel_compat_reason(mask, + omap_dma_filter_fn, &rx_req, &pdev->dev, "rx"); - if (!host->rx_chan) { + if (IS_ERR(host->rx_chan)) { dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel %u\n", rx_req); - ret = -ENXIO; + ret = PTR_ERR(host->rx_chan); goto err_irq; } - host->tx_chan = - dma_request_slave_channel_compat(mask, omap_dma_filter_fn, - &tx_req, &pdev->dev, "tx"); + host->tx_chan = dma_request_slave_channel_compat_reason(mask, + omap_dma_filter_fn, &tx_req, &pdev->dev, "tx"); - if (!host->tx_chan) { + if (IS_ERR(host->tx_chan)) { dev_err(mmc_dev(host->mmc), "unable to obtain TX DMA engine channel %u\n", tx_req); - ret = -ENXIO; + ret = PTR_ERR(host->tx_chan); goto err_irq; } @@ -2166,9 +2164,9 @@ err_slot_name: if (host->use_reg) omap_hsmmc_reg_put(host); err_irq: - if (host->tx_chan) + if (!IS_ERR_OR_NULL(host->tx_chan)) dma_release_channel(host->tx_chan); - if (host->rx_chan) + if (!IS_ERR_OR_NULL(host->rx_chan)) dma_release_channel(host->rx_chan); pm_runtime_put_sync(host->dev); pm_runtime_disable(host->dev);