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] --- V2: Update on top of 1/3 --- 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 0f501acbc3bb..ee760bdc7786 100644 --- a/drivers/pci/controller/pcie-rcar.c +++ b/drivers/pci/controller/pcie-rcar.c @@ -1049,8 +1049,9 @@ static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie, while (cpu_addr < cpu_end) { 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; } /* * Set up 64-bit inbound regions as the range parser doesn't -- 2.20.1
