On Fri, Feb 28, 2014 at 9:28 AM, Lucas Stach <l.stach@xxxxxxxxxxxxxx> wrote: > This series cleans up the PCI irq mapping for all > the ARM PCI host drivers, so they handle it in the > way defined in the common PCI bindings. > > Testing appreciated. > > Lucas Stach (7): > ARM: dts: tegra: add PCIe interrupt mapping properties > PCI: tegra: use new OF interrupt mapping when possible > PCI: rcar: use new OF interrupt mapping when possible > ARM: dts: exynos5440: fix PCIe interrupt mapping > ARM: dts: imx6: add PCIe interrupt mapping properties > PCI: designware: use new OF interrupt mapping when possible > PCI: designware: split samsung and fsl bindings > > .../devicetree/bindings/pci/designware-pcie.txt | 69 +-------------------- > .../devicetree/bindings/pci/fsl,imx6q-pcie.txt | 48 +++++++++++++++ > .../bindings/pci/nvidia,tegra20-pcie.txt | 8 +++ > .../bindings/pci/samsung,exynos5440-pcie.txt | 70 ++++++++++++++++++++++ > arch/arm/boot/dts/exynos5440.dtsi | 4 +- > arch/arm/boot/dts/imx6qdl.dtsi | 11 ++++ > arch/arm/boot/dts/tegra20.dtsi | 4 ++ > arch/arm/boot/dts/tegra30.dtsi | 4 ++ > drivers/pci/host/pci-rcar-gen2.c | 8 ++- > drivers/pci/host/pci-tegra.c | 7 ++- > drivers/pci/host/pcie-designware.c | 8 ++- > 11 files changed, 168 insertions(+), 73 deletions(-) > create mode 100644 Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt > create mode 100644 Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt > > -- > 1.8.5.3 > Lucas, In testing this on IMX6 I'm finding that 'of_irq_parse_and_map_pci()' always returns -EINVAL because it can't find a dt node for the host bridge: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/of/of_pci_irq.c#n60. So it seems there is still something missing in the imx6 devicetree regarding a 'host bridge'? Is this solution expecting the range/interrupt data from the PCI host controller to be encapsulated in a host-bridge node such as http://lxr.missinglinkelectronics.com/linux/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt#L124? If so, thats not how the imx6 host controller node is currently defined. In my particular test case I have a baseboard with a socket on it and a PLX PEX860x PCIe switch on an add-in card. So I don't think it makes sense to me to describe the add-in card in the baseboard DT - that wouldn't be very plug-n-play. By the way, I'm not referring to the add-in card with the TI-XIO2001 PCIe-to-PCI bridge with the mismapped IRQ's - I'm aware that I would need to deal with that somehow in devicetree (still trying to understand how). Thanks, Tim -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
