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| author | Jonathan Yong <jonathan.yong@intel.com> | 2016-06-11 19:13:38 (GMT) |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-08-15 18:44:08 (GMT) |
| commit | 9bb04a0c4e261187be904d05c2bcd1da0eebc20c (patch) | |
| tree | 725a72656a45640205c5d05885dc9c3fd41f01e0 /drivers/pci/probe.c | |
| parent | 29b4817d4018df78086157ea3a55c1d9424a7cfc (diff) | |
| download | linux-9bb04a0c4e261187be904d05c2bcd1da0eebc20c.tar.xz | |
PCI: Add Precision Time Measurement (PTM) support
Add Precision Time Measurement (PTM) support (see PCIe r3.1, sec 6.22).
Enable PTM on PTM Root devices and switch ports. This does not enable PTM
on endpoints.
There currently are no PTM-capable devices on the market, but it is
expected to be supported by the Intel Apollo Lake platform.
[bhelgaas: complete rework]
Signed-off-by: Jonathan Yong <jonathan.yong@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 93f280d..e2e4244 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1667,6 +1667,9 @@ static void pci_init_capabilities(struct pci_dev *dev) pci_enable_acs(dev); pci_cleanup_aer_error_status_regs(dev); + + /* Precision Time Measurement */ + pci_ptm_init(dev); } /* |