From mboxrd@z Thu Jan 1 00:00:00 1970 From: Franklin S Cooper Jr Subject: [PATCH v3 3/6] mtd: nand: omap2: Support parsing dma channel information from DT Date: Wed, 9 Mar 2016 22:07:38 -0600 Message-ID: <1457582861-20619-4-git-send-email-fcooper@ti.com> References: <1457582861-20619-1-git-send-email-fcooper@ti.com> Return-path: In-Reply-To: <1457582861-20619-1-git-send-email-fcooper-l0cyMroinI0@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: nsekhar-l0cyMroinI0@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, rogerq-l0cyMroinI0@public.gmane.org, tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.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 3 changes: Instead of passing parent dev use the new property 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..1e5c803 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, pdata->gpmc_dev, "rxtx"); + if (!info->dma) { dev_err(&pdev->dev, "DMA engine request failed\n"); err = -ENXIO; -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html