Save msi chip in pci sysdata, add arch pci_find_msi_chip()
to extract out msi chip.
Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
---
arch/mips/include/asm/pci.h | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 974b0e3..287661b 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -43,6 +43,9 @@ struct pci_controller {
int iommu;
+#ifdef CONFIG_PCI_MSI
+ struct msi_chip *msi_chip;
+#endif
/* Optional access methods for reading/writing the bus number
of the PCI controller */
int (*get_busno)(void);
@@ -54,6 +57,17 @@ struct pci_controller {
*/
extern void register_pci_controller(struct pci_controller *hose);
+#ifdef CONFIG_PCI_MSI
+
+static inline struct msi_chip *pci_msi_chip(struct pci_bus *bus)
+{
+ struct pci_controller *control = (struct pci_controller *)bus->sysdata;
+
+ return control->msi_chip;
+}
+
+#endif
+
/*
* board supplied pci irq fixup routine
*/
--
1.7.1
