Add kdoc for mei_me_fw_type_nm() function.
Signed-off-by: Tomas Winkler <[email protected]>
---
drivers/misc/mei/hw-me.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 6aa522c0d910..e476995e4c56 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -1353,11 +1353,24 @@ static const struct mei_hw_ops mei_me_hw_ops = {
.read = mei_me_read_slots
};
+/**
+ * mei_me_fw_type_nm() - check for nm sku
+ *
+ * Read ME FW Status register to check for the Node Manager (NM) Firmware.
+ * The NM FW is only signaled in PCI function 0.
+ * __Note__: Deprecated by PCH8 and newer.
+ *
+ * @pdev: pci device
+ *
+ * Return: true in case of NM firmware
+ */
static bool mei_me_fw_type_nm(const struct pci_dev *pdev)
{
u32 reg;
+ unsigned int devfn;
- pci_read_config_dword(pdev, PCI_CFG_HFS_2, ®);
+ devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0);
+ pci_bus_read_config_dword(pdev->bus, devfn, PCI_CFG_HFS_2, ®);
trace_mei_pci_cfg_read(&pdev->dev, "PCI_CFG_HFS_2", PCI_CFG_HFS_2, reg);
/* make sure that bit 9 (NM) is up and bit 10 (DM) is down */
return (reg & 0x600) == 0x200;
--
2.25.4