[PATCH 02/10] PCI: keystone: Use "dummy_irq_chip" instead of new irqchip for legacy interrupt handling
From: Kishon Vijay Abraham I <hidden>
Date: 2018-12-19 12:42:56
Also in:
linux-pci, lkml
Subsystem:
pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
Instead of creating a new irqchip with empty callback functions, use dummy_irq_chip. Since there is nothing to do in the irqchip callback functions, use handle_simple_irq instead of handle_level_irq. Signed-off-by: Kishon Vijay Abraham I <redacted> --- drivers/pci/controller/dwc/pci-keystone.c | 24 ++--------------------- 1 file changed, 2 insertions(+), 22 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 5286a480f76b..1ef443009da5 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c@@ -266,31 +266,12 @@ static irqreturn_t ks_pcie_handle_error_irq(struct keystone_pcie *ks_pcie) return IRQ_HANDLED; } -static void ks_pcie_ack_legacy_irq(struct irq_data *d) -{ -} - -static void ks_pcie_mask_legacy_irq(struct irq_data *d) -{ -} - -static void ks_pcie_unmask_legacy_irq(struct irq_data *d) -{ -} - -static struct irq_chip ks_pcie_legacy_irq_chip = { - .name = "Keystone-PCI-Legacy-IRQ", - .irq_ack = ks_pcie_ack_legacy_irq, - .irq_mask = ks_pcie_mask_legacy_irq, - .irq_unmask = ks_pcie_unmask_legacy_irq, -}; - static int ks_pcie_init_legacy_irq_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw_irq) { - irq_set_chip_and_handler(irq, &ks_pcie_legacy_irq_chip, - handle_level_irq); + irq_set_chip_and_handler(irq, &dummy_irq_chip, + handle_simple_irq); irq_set_chip_data(irq, d->host_data); return 0;
@@ -298,7 +279,6 @@ static int ks_pcie_init_legacy_irq_map(struct irq_domain *d, static const struct irq_domain_ops ks_pcie_legacy_irq_domain_ops = { .map = ks_pcie_init_legacy_irq_map, - .xlate = irq_domain_xlate_onetwocell, }; /**
--
2.17.1
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