diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2016-07-20 10:24:02 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-12-02 09:09:01 +0100 |
| commit | 4f13967ecd20e32ab9564231e872d57f79fb61ef (patch) | |
| tree | 281527b55c6a7e2b82c74b9ab3cc1228ce4756fe | |
| parent | e1049372d7a7196f036664e7b909fa2ec22ed5b8 (diff) | |
mei: me: disable driver on SPT SPS firmware
commit 8c57cac1457f3125a5d13dc03635c0708c61bff0 upstream.
Sunrise Point PCH with SPS Firmware doesn't expose working
MEI interface, we need to quirk it out.
The SPS Firmware is identifiable only on the first PCI function
of the device.
Tested-by: Sujith Pandel <sujith_pandel@dell.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 10 | ||||
| -rw-r--r-- | drivers/misc/mei/pci-me.c | 4 |
2 files changed, 10 insertions, 4 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 25b1997a62cb..36333750c512 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -1258,8 +1258,14 @@ static bool mei_me_fw_type_nm(struct pci_dev *pdev) static bool mei_me_fw_type_sps(struct pci_dev *pdev) { u32 reg; - /* Read ME FW Status check for SPS Firmware */ - pci_read_config_dword(pdev, PCI_CFG_HFS_1, ®); + unsigned int devfn; + + /* + * Read ME FW Status register to check for SPS Firmware + * The SPS FW is only signaled in pci function 0 + */ + devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0); + pci_bus_read_config_dword(pdev->bus, devfn, PCI_CFG_HFS_1, ®); /* if bits [19:16] = 15, running SPS Firmware */ return (reg & 0xf0000) == 0xf0000; } diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index 0af3d7d30419..01e20384ac44 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -84,8 +84,8 @@ static const struct pci_device_id mei_me_pci_tbl[] = { {MEI_PCI_DEVICE(MEI_DEV_ID_SPT, mei_me_pch8_cfg)}, {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, mei_me_pch8_cfg)}, - {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, mei_me_pch8_cfg)}, - {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, mei_me_pch8_cfg)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, mei_me_pch8_sps_cfg)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, mei_me_pch8_sps_cfg)}, {MEI_PCI_DEVICE(MEI_DEV_ID_KBP, mei_me_pch8_cfg)}, {MEI_PCI_DEVICE(MEI_DEV_ID_KBP_2, mei_me_pch8_cfg)}, |