[PATCH v3 3/6] mtd: nand: omap2: Support parsing dma channel information from DT
From: Franklin S Cooper Jr <hidden>
Date: 2016-03-10 04:08:50
Also in:
linux-omap, lkml
Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
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 <redacted> --- 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
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