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| author | Smitha T Murthy <smitha.t@samsung.com> | 2016-12-21 11:14:31 +0530 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2017-01-04 14:00:45 -0600 |
| commit | a3b398e6f2f169f09e60ba99745ca444d7de693e (patch) | |
| tree | b7c35287f362500cb164ae770fcbd953e1fdf2d6 /drivers/of | |
| parent | 6f05afcbb031722ec1eff77dde188ff2edf8940e (diff) | |
| download | linux-a3b398e6f2f169f09e60ba99745ca444d7de693e.tar.bz2 | |
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>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/of_reserved_mem.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 366d8c3c7989..d507c3569a88 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -354,6 +354,10 @@ int of_reserved_mem_device_init_by_idx(struct device *dev, mutex_lock(&of_rmem_assigned_device_mutex); list_add(&rd->list, &of_rmem_assigned_device_list); mutex_unlock(&of_rmem_assigned_device_mutex); + /* ensure that dma_ops is set for virtual devices + * using reserved memory + */ + of_dma_configure(dev, np); dev_info(dev, "assigned reserved memory node %s\n", rmem->name); } else { |