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drivers: remove force dma flag from buses

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With each bus implementing its own DMA configuration callback, there is no
need for bus to explicitly set the force_dma flag.  Modify the
of_dma_configure function to accept an input parameter which specifies if
implicit DMA configuration is required when it is not described by the
firmware.

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>  # PCI parts
Reviewed-by: Rob Herring <robh@kernel.org>
[hch: tweaked the changelog a bit]
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
2018-05-03 16:25:08 +02:00
parent 07397df29e
commit 3d6ce86ee7
10 changed files with 17 additions and 19 deletions
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5
drivers/gpu/host1x/bus.c
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@@ -316,7 +316,7 @@ static int host1x_device_match(struct device *dev, struct device_driver *drv)
static int host1x_dma_configure(struct device *dev)
{
return of_dma_configure(dev, dev->of_node);
return of_dma_configure(dev, dev->of_node, true);
}
static const struct dev_pm_ops host1x_device_pm_ops = {
@@ -333,7 +333,6 @@ struct bus_type host1x_bus_type = {
.match = host1x_device_match,
.dma_configure = host1x_dma_configure,
.pm = &host1x_device_pm_ops,
.force_dma = true,
};
static void __host1x_device_del(struct host1x_device *device)
@@ -422,7 +421,7 @@ static int host1x_device_add(struct host1x *host1x,
device->dev.bus = &host1x_bus_type;
device->dev.parent = host1x->dev;
of_dma_configure(&device->dev, host1x->dev->of_node);
of_dma_configure(&device->dev, host1x->dev->of_node, true);
err = host1x_device_parse_dt(device, driver);
if (err < 0) {