[PATCH] media: xilinx: Use dma_request_chan() instead dma_request_slave_channel()
From: Peter Ujfalusi <hidden>
Date: 2019-12-17 10:42:29
Also in:
linux-media, lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest, xilinx video ip cores · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds, Laurent Pinchart
dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. By using dma_request_chan() directly the driver can support deferred probing against DMA. Signed-off-by: Peter Ujfalusi <redacted> --- drivers/media/platform/xilinx/xilinx-dma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/xilinx/xilinx-dma.c b/drivers/media/platform/xilinx/xilinx-dma.c
index b211380a11f2..9ce515ff9c0a 100644
--- a/drivers/media/platform/xilinx/xilinx-dma.c
+++ b/drivers/media/platform/xilinx/xilinx-dma.c@@ -725,10 +725,10 @@ int xvip_dma_init(struct xvip_composite_device *xdev, struct xvip_dma *dma, /* ... and the DMA channel. */ snprintf(name, sizeof(name), "port%u", port); - dma->dma = dma_request_slave_channel(dma->xdev->dev, name); - if (dma->dma == NULL) { + dma->dma = dma_request_chan(dma->xdev->dev, name); + if (IS_ERR(dma->dma)) { dev_err(dma->xdev->dev, "no VDMA channel found\n"); - ret = -ENODEV; + ret = PTR_ERR(dma->dma); goto error; }
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
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