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gpu: host1x: Set DMA ops on device creation

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Currently host1x-instanciated devices have their dma_ops left to NULL,
which makes any DMA operation (like buffer import) on ARM64 fallback
to the dummy_dma_ops and fail with an error.

This patch calls of_dma_configure() with the host1x node when creating
such a device, so the proper DMA operations are set.

Suggested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Alexandre Courbot 2016-02-26 18:06:53 +09:00 committed by Thierry Reding
parent 097452e613
commit c95469aa5a
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/host1x/bus.c
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@ -18,6 +18,7 @@
#include <linux/host1x.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include "bus.h"
#include "dev.h"
@ -394,6 +395,7 @@ static int host1x_device_add(struct host1x *host1x,
device->dev.coherent_dma_mask = host1x->dev->coherent_dma_mask;
device->dev.dma_mask = &device->dev.coherent_dma_mask;
dev_set_name(&device->dev, "%s", driver->driver.name);
of_dma_configure(&device->dev, host1x->dev->of_node);
device->dev.release = host1x_device_release;
device->dev.bus = &host1x_bus_type;
device->dev.parent = host1x->dev;