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: 6481611 Return-Path: X-Original-To: patchwork-dmaengine@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 5C94BC0020 for ; Tue, 26 May 2015 13:39:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 804D5203A0 for ; Tue, 26 May 2015 13:39:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D8212042A for ; Tue, 26 May 2015 13:39:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754138AbbEZNgN (ORCPT ); Tue, 26 May 2015 09:36:13 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:50996 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754419AbbEZN0l (ORCPT ); Tue, 26 May 2015 09:26:41 -0400 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: , CC: , , , , , , , , , , , Ulf Hansson Subject: [PATCH 05/13] mmc: omap_hsmmc: Support for deferred probing when requesting DMA channels 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 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.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);