From: Marek Vasut <[email protected]> In case the "dma-ranges" DT property contains either too many ranges or the range start address is unaligned in such a way that populating the range into the controller requires multiple entries, a situation may occur where all ranges cannot be loaded into the controller.
Currently, the driver refuses to probe in such a situation. Relax this behavior, load as many ranges as possible and warn if some ranges do not fit anymore. Signed-off-by: Marek Vasut <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Lorenzo Pieralisi <[email protected]> Cc: Wolfram Sang <[email protected]> Cc: [email protected] To: [email protected] --- drivers/pci/controller/pcie-rcar.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c index f6a669a9af41..938adff4148f 100644 --- a/drivers/pci/controller/pcie-rcar.c +++ b/drivers/pci/controller/pcie-rcar.c @@ -1069,8 +1069,9 @@ static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie, idx += 2; if (idx > MAX_NR_INBOUND_MAPS) { - dev_err(pcie->dev, "Failed to map inbound regions!\n"); - return -EINVAL; + dev_warn(pcie->dev, + "Too many inbound regions, not all are mapped.\n"); + break; } } *index = idx; -- 2.20.1
