From mboxrd@z Thu Jan 1 00:00:00 1970 From: Franklin S Cooper Jr Subject: [PATCH v4 4/7] mtd: nand: omap2: Support parsing dma channel information from DT Date: Thu, 10 Mar 2016 17:56:40 -0600 Message-ID: <1457654203-20856-5-git-send-email-fcooper@ti.com> References: <1457654203-20856-1-git-send-email-fcooper@ti.com> Return-path: In-Reply-To: <1457654203-20856-1-git-send-email-fcooper@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: nsekhar@ti.com, dwmw2@infradead.org, computersforpeace@gmail.com, rogerq@ti.com, tony@atomide.com, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Franklin S Cooper Jr List-Id: devicetree@vger.kernel.org Switch from dma_request_channel to allow passing dma channel information from DT rather than hardcoding a value. Also provide a handle to the GPMC's dev so it can be used to parse the DMA channel information within the GPMC's DT node. Signed-off-by: Franklin S Cooper Jr --- Version 4 changes: Pass parent instead of new variable from the platform data drivers/mtd/nand/omap2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index c553f78..95bc636 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -1731,7 +1731,9 @@ static int omap_nand_probe(struct platform_device *pdev) dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); sig = OMAP24XX_DMA_GPMC; - info->dma = dma_request_channel(mask, omap_dma_filter_fn, &sig); + info->dma = dma_request_slave_channel_compat(mask, + omap_dma_filter_fn, &sig, pdev->dev.parent, "rxtx"); + if (!info->dma) { dev_err(&pdev->dev, "DMA engine request failed\n"); err = -ENXIO; -- 2.7.0