diff options
| -rw-r--r-- | arch/powerpc/platforms/powernv/eeh-powernv.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 6fb5522acd70..d2f19821d71d 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -1102,6 +1102,13 @@ static int pnv_eeh_reset(struct eeh_pe *pe, int option) return -EIO; } + /* + * If dealing with the root bus (or the bus underneath the + * root port), we reset the bus underneath the root port. + * + * The cxl driver depends on this behaviour for bi-modal card + * switching. + */ if (pci_is_root_bus(bus) || pci_is_root_bus(bus->parent)) return pnv_eeh_root_reset(hose, option); |