| Message ID | 20211221141455.30011-10-pali@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | PCI: Small improvements for pci-bridge-emul and mvebu | expand |
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c index 94ef00b6d697..1aac65977b97 100644 --- a/drivers/pci/controller/pci-mvebu.c +++ b/drivers/pci/controller/pci-mvebu.c @@ -546,8 +546,8 @@ mvebu_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge, case PCI_EXP_LNKCAP: /* - * PCIe requires the clock power management capability to be - * hard-wired to zero for downstream ports + * PCIe requires that the Clock Power Management capability bit + * is hard-wired to zero for downstream ports but HW returns 1. */ *value = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_LNKCAP) & ~PCI_EXP_LNKCAP_CLKPM;
Reason for clearing this bit is because mvebu hw returns incorrectly this bit set to 1. Signed-off-by: Pali Rohár <pali@kernel.org> --- drivers/pci/controller/pci-mvebu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)