From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 024E8C43603 for ; Tue, 17 Dec 2019 07:40:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C099B2067C for ; Tue, 17 Dec 2019 07:40:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="bsRuuoIl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726494AbfLQHkO (ORCPT ); Tue, 17 Dec 2019 02:40:14 -0500 Received: from fllv0016.ext.ti.com ([198.47.19.142]:52202 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726072AbfLQHkO (ORCPT ); Tue, 17 Dec 2019 02:40:14 -0500 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id xBH7e9rZ078256; Tue, 17 Dec 2019 01:40:09 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1576568409; bh=uq4M6dCHylxyKFwJawgtPdUJOCVELJz3UBxlL6ZzTc4=; h=From:To:CC:Subject:Date; b=bsRuuoIlTAcTANxTUA93MNeEk6AlrLlacQuZUuuTdAuYflPCeCKQVuCJ2wx9h7/U5 ZC8YzMvL9xdjrRFq+BssFMK3mHPrB4u6ZXnMlGEwJhyVuxRZDnGwilUyxRoLDaBWSC WC4i8K8wrVAnwB4DzS2vU9iY8YT79quJ3CDxpN+M= Received: from DLEE103.ent.ti.com (dlee103.ent.ti.com [157.170.170.33]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id xBH7e9d4031094 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 17 Dec 2019 01:40:09 -0600 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Tue, 17 Dec 2019 01:40:06 -0600 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Tue, 17 Dec 2019 01:40:06 -0600 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id xBH7e4t0093908; Tue, 17 Dec 2019 01:40:05 -0600 From: Peter Ujfalusi To: , CC: , , Subject: [PATCH] powerpc/512x: Use dma_request_chan() instead dma_request_slave_channel() Date: Tue, 17 Dec 2019 09:40:19 +0200 Message-ID: <20191217074019.21732-1-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. By using dma_request_chan() directly the driver can support deferred probing against DMA. Signed-off-by: Peter Ujfalusi --- arch/powerpc/platforms/512x/mpc512x_lpbfifo.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c index 13631f35cd14..04bf6ecf7d55 100644 --- a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c +++ b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c @@ -434,9 +434,9 @@ static int mpc512x_lpbfifo_probe(struct platform_device *pdev) memset(&lpbfifo, 0, sizeof(struct lpbfifo_data)); spin_lock_init(&lpbfifo.lock); - lpbfifo.chan = dma_request_slave_channel(&pdev->dev, "rx-tx"); - if (lpbfifo.chan == NULL) - return -EPROBE_DEFER; + lpbfifo.chan = dma_request_chan(&pdev->dev, "rx-tx"); + if (IS_ERR(lpbfifo.chan)) + return PTR_ERR(lpbfifo.chan); if (of_address_to_resource(pdev->dev.of_node, 0, &r) != 0) { dev_err(&pdev->dev, "bad 'reg' in 'sclpc' device tree node\n"); -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki