diff options
Diffstat (limited to 'drivers/pci/host')
| -rw-r--r-- | drivers/pci/host/pci-exynos.c | 4 | ||||
| -rw-r--r-- | drivers/pci/host/pcie-designware.c | 6 | ||||
| -rw-r--r-- | drivers/pci/host/pcie-designware.h | 2 |
3 files changed, 7 insertions, 5 deletions
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c index 3de6bfb..b616d34 100644 --- a/drivers/pci/host/pci-exynos.c +++ b/drivers/pci/host/pci-exynos.c @@ -415,9 +415,7 @@ static irqreturn_t exynos_pcie_msi_irq_handler(int irq, void *arg) { struct pcie_port *pp = arg; - dw_handle_msi_irq(pp); - - return IRQ_HANDLED; + return dw_handle_msi_irq(pp); } static void exynos_pcie_msi_init(struct pcie_port *pp) diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index 509a29d..77a649d 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -155,15 +155,17 @@ static struct irq_chip dw_msi_irq_chip = { }; /* MSI int handler */ -void dw_handle_msi_irq(struct pcie_port *pp) +irqreturn_t dw_handle_msi_irq(struct pcie_port *pp) { unsigned long val; int i, pos, irq; + irqreturn_t ret = IRQ_NONE; for (i = 0; i < MAX_MSI_CTRLS; i++) { dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4, (u32 *)&val); if (val) { + ret = IRQ_HANDLED; pos = 0; while ((pos = find_next_bit(&val, 32, pos)) != 32) { irq = irq_find_mapping(pp->irq_domain, @@ -176,6 +178,8 @@ void dw_handle_msi_irq(struct pcie_port *pp) } } } + + return ret; } void dw_pcie_msi_init(struct pcie_port *pp) diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h index 3063b35..a169d22 100644 --- a/drivers/pci/host/pcie-designware.h +++ b/drivers/pci/host/pcie-designware.h @@ -68,7 +68,7 @@ struct pcie_host_ops { int dw_pcie_cfg_read(void __iomem *addr, int where, int size, u32 *val); int dw_pcie_cfg_write(void __iomem *addr, int where, int size, u32 val); -void dw_handle_msi_irq(struct pcie_port *pp); +irqreturn_t dw_handle_msi_irq(struct pcie_port *pp); void dw_pcie_msi_init(struct pcie_port *pp); int dw_pcie_link_up(struct pcie_port *pp); void dw_pcie_setup_rc(struct pcie_port *pp); |