dmaengine: pxa: add a default requestor policy (88a0513c) · Commits · 戴 / test

As what former drcmr -1 value meant, add a this as a default to each channel, ie. that by default no requestor line is used. This is specifically used for network drivers smc91x and smc911x, and needed for their port to slave maps. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:

Robert Jarzmik <robert.jarzmik@free.fr> Acked-by:

Vinod Koul <vkoul@kernel.org>

drivers/dma/pxa_dma.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -762,6 +762,8 @@ static void pxad_free_chan_resources(struct dma_chan *dchan)
		dma_pool_destroy(chan->desc_pool);
		chan->desc_pool = NULL;

		chan->drcmr = U32_MAX;
		chan->prio = PXAD_PRIO_LOWEST;
		}

		static void pxad_free_desc(struct virt_dma_desc *vd)
		@@ -1386,6 +1388,9 @@ static int pxad_init_dmadev(struct platform_device *op,
		c = devm_kzalloc(&op->dev, sizeof(*c), GFP_KERNEL);
		if (!c)
		return -ENOMEM;

		c->drcmr = U32_MAX;
		c->prio = PXAD_PRIO_LOWEST;
		c->vc.desc_free = pxad_free_desc;
		vchan_init(&c->vc, &pdev->slave);
		init_waitqueue_head(&c->wq_state);

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