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authorHou Zhiqiang <Zhiqiang.Hou@nxp.com>2020-02-13 05:06:36 +0100
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2020-02-21 12:53:22 +0100
commited620e96541f3248ad7cfe069f98d43177ae0435 (patch)
tree583be3a016a826584955a0544514098d5407f85d /drivers/pci
parentPCI: mobiveil: Modularize the Mobiveil PCIe Host Bridge IP driver (diff)
downloadlinux-ed620e96541f3248ad7cfe069f98d43177ae0435.tar.xz
linux-ed620e96541f3248ad7cfe069f98d43177ae0435.zip
PCI: mobiveil: Add callback function for interrupt initialization
The Mobiveil GPEX internal MSI/INTx controller is not implemented in all platforms in which the Mobiveil GPEX is integrated. Allow platforms to implement their specific interrupt initialization. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Andrew Murray <amurray@thegoodpenguin.co.uk>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/controller/mobiveil/pcie-mobiveil-host.c12
-rw-r--r--drivers/pci/controller/mobiveil/pcie-mobiveil.h7
2 files changed, 18 insertions, 1 deletions
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
index 432b019a4fcf..8d12682e8346 100644
--- a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
+++ b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
@@ -499,7 +499,7 @@ static int mobiveil_pcie_init_irq_domain(struct mobiveil_pcie *pcie)
return 0;
}
-static int mobiveil_pcie_interrupt_init(struct mobiveil_pcie *pcie)
+static int mobiveil_pcie_integrated_interrupt_init(struct mobiveil_pcie *pcie)
{
struct platform_device *pdev = pcie->pdev;
struct device *dev = &pdev->dev;
@@ -539,6 +539,16 @@ static int mobiveil_pcie_interrupt_init(struct mobiveil_pcie *pcie)
return 0;
}
+static int mobiveil_pcie_interrupt_init(struct mobiveil_pcie *pcie)
+{
+ struct mobiveil_root_port *rp = &pcie->rp;
+
+ if (rp->ops->interrupt_init)
+ return rp->ops->interrupt_init(pcie);
+
+ return mobiveil_pcie_integrated_interrupt_init(pcie);
+}
+
int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie)
{
struct mobiveil_root_port *rp = &pcie->rp;
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil.h b/drivers/pci/controller/mobiveil/pcie-mobiveil.h
index 98ad7227b022..1f7d9da76542 100644
--- a/drivers/pci/controller/mobiveil/pcie-mobiveil.h
+++ b/drivers/pci/controller/mobiveil/pcie-mobiveil.h
@@ -130,10 +130,17 @@ struct mobiveil_msi { /* MSI information */
DECLARE_BITMAP(msi_irq_in_use, PCI_NUM_MSI);
};
+struct mobiveil_pcie;
+
+struct mobiveil_rp_ops {
+ int (*interrupt_init)(struct mobiveil_pcie *pcie);
+};
+
struct mobiveil_root_port {
char root_bus_nr;
void __iomem *config_axi_slave_base; /* endpoint config base */
struct resource *ob_io_res;
+ struct mobiveil_rp_ops *ops;
int irq;
raw_spinlock_t intx_mask_lock;
struct irq_domain *intx_domain;