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PCI: of: Reduce missing non-prefetchable memory region to a warning

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The pci-rcar-gen2 controller requires only a prefetchable memory region,
and the error prevents using pci_parse_request_of_pci_ranges() for it.
Let's reduce this to just a warning message so this function can be used
for pci-rcar-gen2.

Link: https://lore.kernel.org/r/20200722022514.1283916-17-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This commit is contained in:
Rob Herring 2020-07-21 20:25:11 -06:00 committed by Lorenzo Pieralisi
parent b411b2e1ad
commit 4cb18d13b0
1 changed files with 3 additions and 4 deletions
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7
drivers/pci/of.c
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@ -564,11 +564,10 @@ int pci_parse_request_of_pci_ranges(struct device *dev,
}
}
if (res_valid)
return 0;
if (!res_valid)
dev_warn(dev, "non-prefetchable memory resource required\n");
dev_err(dev, "non-prefetchable memory resource required\n");
err = -EINVAL;
return 0;
out_release_res:
pci_free_resource_list(resources);