From patchwork Thu Dec 15 14:03:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Guo X-Patchwork-Id: 9476183 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CEFCF60571 for ; Thu, 15 Dec 2016 14:08:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AE1EA28325 for ; Thu, 15 Dec 2016 14:08:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A2BBE28785; Thu, 15 Dec 2016 14:08:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6C5DE28325 for ; Thu, 15 Dec 2016 14:08:45 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1cHWeu-0001Pp-Mz; Thu, 15 Dec 2016 14:05:20 +0000 Received: from mail.kernel.org ([198.145.29.136]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1cHWeq-0000gY-7J for linux-arm-kernel@lists.infradead.org; Thu, 15 Dec 2016 14:05:17 +0000 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F256920457; Thu, 15 Dec 2016 14:04:58 +0000 (UTC) Received: from localhost.localdomain (li411-102.members.linode.com [106.187.91.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0D70420456; Thu, 15 Dec 2016 14:04:54 +0000 (UTC) From: Shawn Guo To: Vinod Koul Subject: [PATCH 2/3] dma: zx: set DMA_CYCLIC cap_mask bit Date: Thu, 15 Dec 2016 22:03:36 +0800 Message-Id: <1481810617-7650-2-git-send-email-shawnguo@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1481810617-7650-1-git-send-email-shawnguo@kernel.org> References: <1481810617-7650-1-git-send-email-shawnguo@kernel.org> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161215_060516_373208_013C2188 X-CRM114-Status: GOOD ( 12.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lars-Peter Clausen , Baoyou Xie , Jun Nie , Shawn Guo , Shawn Guo , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Shawn Guo The zx_dma driver supports cyclic transfer mode. Let's set DMA_CYCLIC cap_mask bit to make that clear, and avoid unnecessary failure when clients request channel via dma_request_chan_by_mask() with DMA_CYCLIC bit set in mask. Signed-off-by: Shawn Guo Reviewed-by: Jun Nie --- drivers/dma/zx_dma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/zx_dma.c b/drivers/dma/zx_dma.c index 380276d078b2..33155c6816cc 100644 --- a/drivers/dma/zx_dma.c +++ b/drivers/dma/zx_dma.c @@ -812,6 +812,7 @@ static int zx_dma_probe(struct platform_device *op) INIT_LIST_HEAD(&d->slave.channels); dma_cap_set(DMA_SLAVE, d->slave.cap_mask); dma_cap_set(DMA_MEMCPY, d->slave.cap_mask); + dma_cap_set(DMA_CYCLIC, d->slave.cap_mask); dma_cap_set(DMA_PRIVATE, d->slave.cap_mask); d->slave.dev = &op->dev; d->slave.device_free_chan_resources = zx_dma_free_chan_resources;