From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benoit Parrot Subject: [Patch v2 15/21] media: ti-vpe: Set the DMA mask and coherent mask Date: Fri, 4 Oct 2019 11:29:46 -0500 Message-ID: <20191004162952.4963-16-bparrot@ti.com> References: <20191004162952.4963-1-bparrot@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20191004162952.4963-1-bparrot@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Hans Verkuil Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Benoit Parrot List-Id: devicetree@vger.kernel.org VPE uses VPDMA (built-in dma engine) to transfer data to and from the IP and memory. VPDMA expect 32 bits addresses. To make sure that is always the case set the DMA mask and coherent mask for the device. Signed-off-by: Benoit Parrot --- drivers/media/platform/ti-vpe/vpe.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c index ad9d8b559cad..d7f8eb901475 100644 --- a/drivers/media/platform/ti-vpe/vpe.c +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -2517,6 +2517,13 @@ static int vpe_probe(struct platform_device *pdev) struct vpe_dev *dev; int ret, irq, func; + ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(&pdev->dev, + "32-bit consistent DMA enable failed\n"); + return ret; + } + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; -- 2.17.1