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>
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index ba8c6b4..f8269a7 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1595,7 +1595,7 @@ static int pci_dma_configure(struct device *dev)
if (IS_ENABLED(CONFIG_OF) && bridge->parent &&
bridge->parent->of_node) {
- ret = of_dma_configure(dev, bridge->parent->of_node);
+ ret = of_dma_configure(dev, bridge->parent->of_node, true);
} else if (has_acpi_companion(bridge)) {
struct acpi_device *adev = to_acpi_device_node(bridge->fwnode);
enum dev_dma_attr attr = acpi_get_dma_attr(adev);
@@ -1621,7 +1621,6 @@ struct bus_type pci_bus_type = {
.pm = PCI_PM_OPS_PTR,
.num_vf = pci_bus_num_vf,
.dma_configure = pci_dma_configure,
- .force_dma = true,
};
EXPORT_SYMBOL(pci_bus_type);