[PATCH 02/18] dmaengine: imx-sdma: pass struct device to DMA API functions
From: Christoph Hellwig <hch@lst.de>
Date: 2019-02-01 08:48:16
Also in:
alsa-devel, dmaengine, linux-iommu, linux-mips, linux-usb, lkml, netdev
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/dma/imx-sdma.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 86708fb9bda1..0b6bba0b9f38 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c@@ -677,7 +677,7 @@ static int sdma_load_script(struct sdma_engine *sdma, void *buf, int size, int ret; unsigned long flags; - buf_virt = dma_alloc_coherent(NULL, size, &buf_phys, GFP_KERNEL); + buf_virt = dma_alloc_coherent(sdma->dev, size, &buf_phys, GFP_KERNEL); if (!buf_virt) { return -ENOMEM; }
@@ -696,7 +696,7 @@ static int sdma_load_script(struct sdma_engine *sdma, void *buf, int size, spin_unlock_irqrestore(&sdma->channel_0_lock, flags); - dma_free_coherent(NULL, size, buf_virt, buf_phys); + dma_free_coherent(sdma->dev, size, buf_virt, buf_phys); return ret; }
@@ -1182,8 +1182,8 @@ static int sdma_request_channel0(struct sdma_engine *sdma) { int ret = -EBUSY; - sdma->bd0 = dma_alloc_coherent(NULL, PAGE_SIZE, &sdma->bd0_phys, - GFP_NOWAIT); + sdma->bd0 = dma_alloc_coherent(sdma->dev, PAGE_SIZE, &sdma->bd0_phys, + GFP_NOWAIT); if (!sdma->bd0) { ret = -ENOMEM; goto out;
@@ -1842,7 +1842,7 @@ static int sdma_init(struct sdma_engine *sdma) /* Be sure SDMA has not started yet */ writel_relaxed(0, sdma->regs + SDMA_H_C0PTR); - sdma->channel_control = dma_alloc_coherent(NULL, + sdma->channel_control = dma_alloc_coherent(sdma->dev, MAX_DMA_CHANNELS * sizeof (struct sdma_channel_control) + sizeof(struct sdma_context_data), &ccb_phys, GFP_KERNEL);
--
2.20.1