drivers: remove force dma flag from buses

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>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 638d42e93772..c0ff1e73a634 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -1136,7 +1136,7 @@ int platform_dma_configure(struct device *dev)
         int ret = 0;
 
         if (dev->of_node) {
-                ret = of_dma_configure(dev, dev->of_node);
+                ret = of_dma_configure(dev, dev->of_node, true);
         } else if (has_acpi_companion(dev)) {
                 attr = acpi_get_dma_attr(to_acpi_device_node(dev->fwnode));
                 if (attr != DEV_DMA_NOT_SUPPORTED)
@@ -1159,7 +1159,6 @@ struct bus_type platform_bus_type = {
         .uevent         = platform_uevent,
         .dma_configure  = platform_dma_configure,
         .pm             = &platform_dev_pm_ops,
-        .force_dma      = true,
 };
 EXPORT_SYMBOL_GPL(platform_bus_type);