[PATCH v3 03/14] dmaengine: pxa: add a default requestor policy
From: robert.jarzmik@free.fr (Robert Jarzmik)
Date: 2018-06-17 17:03:16
Also in:
alsa-devel, dmaengine, linux-ide, linux-media, linux-mmc, lkml, netdev
Subsystem:
dma generic offload engine subsystem, pxa2xx/pxa3xx support, the rest · Maintainers:
Vinod Koul, Daniel Mack, Haojian Zhuang, Robert Jarzmik, Linus Torvalds
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> --- Since v1: changed -1 to U32_MAX --- drivers/dma/pxa_dma.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c
index 9505334f9c6e..b31c28b67ad3 100644
--- a/drivers/dma/pxa_dma.c
+++ b/drivers/dma/pxa_dma.c@@ -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);
--
2.11.0