diff options
| author | Shawn Lin | 2017-08-23 09:02:05 +0200 |
|---|---|---|
| committer | Bjorn Helgaas | 2017-08-29 20:18:06 +0200 |
| commit | 6341f8052ea41c8fa9e28bb2f12864b90f470360 (patch) | |
| tree | c3b29c2e1002905e8fc85cfc2bcdd83ab80f4ba0 /drivers/pci | |
| parent | PCI: rockchip: Use gpiod_set_value_cansleep() to allow reset via expanders (diff) | |
| download | kernel-qcow2-linux-6341f8052ea41c8fa9e28bb2f12864b90f470360.tar.gz kernel-qcow2-linux-6341f8052ea41c8fa9e28bb2f12864b90f470360.tar.xz kernel-qcow2-linux-6341f8052ea41c8fa9e28bb2f12864b90f470360.zip | |
PCI: rockchip: Factor out rockchip_pcie_setup_irq()
Factor out rockchip_pcie_setup_irq() to prepare for future bug fixes. No
functional change intended.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/host/pcie-rockchip.c | 82 |
1 files changed, 47 insertions, 35 deletions
diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c index c10b8987d7b3..fcb96a3494c2 100644 --- a/drivers/pci/host/pcie-rockchip.c +++ b/drivers/pci/host/pcie-rockchip.c @@ -933,6 +933,51 @@ static int rockchip_pcie_get_phys(struct rockchip_pcie *rockchip) return 0; } +static int rockchip_pcie_setup_irq(struct rockchip_pcie *rockchip) +{ + int irq, err; + struct device *dev = rockchip->dev; + struct platform_device *pdev = to_platform_device(dev); + + irq = platform_get_irq_byname(pdev, "sys"); + if (irq < 0) { + dev_err(dev, "missing sys IRQ resource\n"); + return -EINVAL; + } + + err = devm_request_irq(dev, irq, rockchip_pcie_subsys_irq_handler, + IRQF_SHARED, "pcie-sys", rockchip); + if (err) { + dev_err(dev, "failed to request PCIe subsystem IRQ\n"); + return err; + } + + irq = platform_get_irq_byname(pdev, "legacy"); + if (irq < 0) { + dev_err(dev, "missing legacy IRQ resource\n"); + return -EINVAL; + } + + irq_set_chained_handler_and_data(irq, + rockchip_pcie_legacy_int_handler, + rockchip); + + irq = platform_get_irq_byname(pdev, "client"); + if (irq < 0) { + dev_err(dev, "missing client IRQ resource\n"); + return -EINVAL; + } + + err = devm_request_irq(dev, irq, rockchip_pcie_client_irq_handler, + IRQF_SHARED, "pcie-client", rockchip); + if (err) { + dev_err(dev, "failed to request PCIe client IRQ\n"); + return err; + } + + return 0; +} + /** * rockchip_pcie_parse_dt - Parse Device Tree * @rockchip: PCIe port information @@ -945,7 +990,6 @@ static int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip) struct platform_device *pdev = to_platform_device(dev); struct device_node *node = dev->of_node; struct resource *regs; - int irq; int err; regs = platform_get_resource_byname(pdev, @@ -1059,41 +1103,9 @@ static int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip) return PTR_ERR(rockchip->clk_pcie_pm); } - irq = platform_get_irq_byname(pdev, "sys"); - if (irq < 0) { - dev_err(dev, "missing sys IRQ resource\n"); - return -EINVAL; - } - - err = devm_request_irq(dev, irq, rockchip_pcie_subsys_irq_handler, - IRQF_SHARED, "pcie-sys", rockchip); - if (err) { - dev_err(dev, "failed to request PCIe subsystem IRQ\n"); - return err; - } - - irq = platform_get_irq_byname(pdev, "legacy"); - if (irq < 0) { - dev_err(dev, "missing legacy IRQ resource\n"); - return -EINVAL; - } - - irq_set_chained_handler_and_data(irq, - rockchip_pcie_legacy_int_handler, - rockchip); - - irq = platform_get_irq_byname(pdev, "client"); - if (irq < 0) { - dev_err(dev, "missing client IRQ resource\n"); - return -EINVAL; - } - - err = devm_request_irq(dev, irq, rockchip_pcie_client_irq_handler, - IRQF_SHARED, "pcie-client", rockchip); - if (err) { - dev_err(dev, "failed to request PCIe client IRQ\n"); + err = rockchip_pcie_setup_irq(rockchip); + if (err) return err; - } rockchip->vpcie12v = devm_regulator_get_optional(dev, "vpcie12v"); if (IS_ERR(rockchip->vpcie12v)) { |