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of: reserved_mem: set dma_ops for devices using reserved mem
For some IPs, there may be virtual child devices created and for them its necessary to set the dma_ops if it's using reserved memory else it will call the dummy dma_ops during buffer operations for the child devices which will lead to memory mapping failure. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Rob Herring <robh@kernel.org>
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@ -354,6 +354,10 @@ int of_reserved_mem_device_init_by_idx(struct device *dev,
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mutex_lock(&of_rmem_assigned_device_mutex);
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list_add(&rd->list, &of_rmem_assigned_device_list);
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mutex_unlock(&of_rmem_assigned_device_mutex);
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/* ensure that dma_ops is set for virtual devices
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* using reserved memory
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*/
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of_dma_configure(dev, np);
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dev_info(dev, "assigned reserved memory node %s\n", rmem->name);
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} else {
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