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Commit e9c8d7a0 authored Jan 18, 2012 by Guennadi Liakhovetski Committed by Vinod Koul Feb 01, 2012

dma: sh_dma: not all SH DMAC implementations support MEMCPY



Add a flag to allow platforms to specify, whether a DMAC instance supports
the MEMCPY operation. To avoid regressions, preserve the current default.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

parent a5044cdd

drivers/dma/shdma.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1262,6 +1262,7 @@ static int __init sh_dmae_probe(struct platform_device *pdev)

		INIT_LIST_HEAD(&shdev->common.channels);

		if (!pdata->slave_only)
		dma_cap_set(DMA_MEMCPY, shdev->common.cap_mask);
		if (pdata->slave && pdata->slave_num)
		dma_cap_set(DMA_SLAVE, shdev->common.cap_mask);

include/linux/sh_dma.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -70,6 +70,7 @@ struct sh_dmae_pdata {
		unsigned int needs_tend_set:1;
		unsigned int no_dmars:1;
		unsigned int chclr_present:1;
		unsigned int slave_only:1;
		};

		/* DMA register */