diff options
Diffstat (limited to 'target/linux/imx6/patches-3.14/0005-PCI-designware-Use-new-OF-interrupt-mapping-when-pos.patch')
| -rw-r--r-- | target/linux/imx6/patches-3.14/0005-PCI-designware-Use-new-OF-interrupt-mapping-when-pos.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/imx6/patches-3.14/0005-PCI-designware-Use-new-OF-interrupt-mapping-when-pos.patch b/target/linux/imx6/patches-3.14/0005-PCI-designware-Use-new-OF-interrupt-mapping-when-pos.patch new file mode 100644 index 0000000000..19db40451d --- /dev/null +++ b/target/linux/imx6/patches-3.14/0005-PCI-designware-Use-new-OF-interrupt-mapping-when-pos.patch @@ -0,0 +1,64 @@ +From 804f57b1a63c7435fe43b36942581cc6c79ebb5c Mon Sep 17 00:00:00 2001 +From: Lucas Stach <l.stach@pengutronix.de> +Date: Wed, 5 Mar 2014 14:25:51 +0100 +Subject: [PATCH] PCI: designware: Use new OF interrupt mapping when possible + +Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible. +This is the recommended method of doing the IRQ mapping. For old +devicetrees we fall back to the previous practice. + +This makes INTB, INTC, and INTD work on i.MX. + +Tested-by: Tim Harvey <tharvey@gateworks.com> +Signed-off-by: Lucas Stach <l.stach@pengutronix.de> +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +Reviewed-by: Marek Vasut <marex@denx.de> +Acked-by: Arnd Bergmann <arnd@arndb.de> +Acked-by: Jingoo Han <jg1.han@samsung.com> +--- + drivers/pci/host/pcie-designware.c | 12 +++++++++--- + 1 file changed, 9 insertions(+), 3 deletions(-) + +--- a/drivers/pci/host/pcie-designware.c ++++ b/drivers/pci/host/pcie-designware.c +@@ -17,6 +17,7 @@ + #include <linux/module.h> + #include <linux/msi.h> + #include <linux/of_address.h> ++#include <linux/of_pci.h> + #include <linux/pci.h> + #include <linux/pci_regs.h> + #include <linux/types.h> +@@ -492,7 +493,7 @@ int __init dw_pcie_host_init(struct pcie + dw_pci.nr_controllers = 1; + dw_pci.private_data = (void **)&pp; + +- pci_common_init(&dw_pci); ++ pci_common_init_dev(pp->dev, &dw_pci); + pci_assign_unassigned_resources(); + #ifdef CONFIG_PCI_DOMAINS + dw_pci.domain++; +@@ -725,7 +726,7 @@ static struct pci_bus *dw_pcie_scan_bus( + + if (pp) { + pp->root_bus_nr = sys->busnr; +- bus = pci_scan_root_bus(NULL, sys->busnr, &dw_pcie_ops, ++ bus = pci_scan_root_bus(pp->dev, sys->busnr, &dw_pcie_ops, + sys, &sys->resources); + } else { + bus = NULL; +@@ -738,8 +739,13 @@ static struct pci_bus *dw_pcie_scan_bus( + static int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) + { + struct pcie_port *pp = sys_to_pcie(dev->bus->sysdata); ++ int irq; + +- return pp->irq; ++ irq = of_irq_parse_and_map_pci(dev, slot, pin); ++ if (!irq) ++ irq = pp->irq; ++ ++ return irq; + } + + static void dw_pcie_add_bus(struct pci_bus *bus) |