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| author | Rob Herring <robh@kernel.org> | 2020-10-06 16:38:32 +0300 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2020-10-06 16:38:32 +0300 |
| commit | aa6174f0d31e4d5785a843fc79a433bed7cac784 (patch) | |
| tree | af3634259876c4986ef4fde2972e40c8d0f1068a /drivers/of | |
| parent | 1b25b207d207f2bdbc7aeff81426e6a0428a6012 (diff) | |
| parent | efe84d408bf41975db8506d3a1cc02e794e2309c (diff) | |
| download | linux-aa6174f0d31e4d5785a843fc79a433bed7cac784.tar.xz | |
Merge branch 'dt/linus' into dt/next
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/address.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c index 590493e04b01..da4f7341323f 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -128,15 +128,29 @@ static unsigned int of_bus_pci_get_flags(const __be32 *addr) * PCI bus specific translator */ +static bool of_node_is_pcie(struct device_node *np) +{ + bool is_pcie = of_node_name_eq(np, "pcie"); + + if (is_pcie) + pr_warn_once("%pOF: Missing device_type\n", np); + + return is_pcie; +} + static int of_bus_pci_match(struct device_node *np) { /* * "pciex" is PCI Express * "vci" is for the /chaos bridge on 1st-gen PCI powermacs * "ht" is hypertransport + * + * If none of the device_type match, and that the node name is + * "pcie", accept the device as PCI (with a warning). */ return of_node_is_type(np, "pci") || of_node_is_type(np, "pciex") || - of_node_is_type(np, "vci") || of_node_is_type(np, "ht"); + of_node_is_type(np, "vci") || of_node_is_type(np, "ht") || + of_node_is_pcie(np); } static void of_bus_pci_count_cells(struct device_node *np, @@ -985,6 +999,11 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *siz /* Don't error out as we'd break some existing DTs */ continue; } + if (range.cpu_addr == OF_BAD_ADDR) { + pr_err("translation of DMA address(%llx) to CPU address failed node(%pOF)\n", + range.bus_addr, node); + continue; + } dma_offset = range.cpu_addr - range.bus_addr; /* Take lower and upper limits */ |