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[5/6] PCI: Enable runtime PM for Intel Sunrisepoint PCIe root ports

Message ID 1456750566-116248-6-git-send-email-mika.westerberg@linux.intel.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Mika Westerberg Feb. 29, 2016, 12:56 p.m. UTC 
Intel Sunrisepoint (Skylake PCH) PCIe root ports are capable of being
suspended runtime so allow runtime PM for these ports.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/pci/pcie/portdrv_pci.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index eb0f425f51cc..864c1bdd0e91 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -81,6 +81,7 @@  static int pcie_portdrv_restore_config(struct pci_dev *dev)
 
 enum pcie_port_type {
 	PCIE_PORT_DEFAULT,
+	PCIE_PORT_SPT,
 };
 
 struct pcie_port_config {
@@ -92,6 +93,10 @@  static const struct pcie_port_config pcie_port_configs[] = {
 	[PCIE_PORT_DEFAULT] = {
 		.suspend_allowed = true,
 	},
+	[PCIE_PORT_SPT] = {
+		.suspend_allowed = true,
+		.runtime_suspend_allowed = true,
+	},
 };
 
 #ifdef CONFIG_PM
@@ -431,6 +436,9 @@  static void pcie_portdrv_err_resume(struct pci_dev *dev)
  * LINUX Device Driver Model
  */
 static const struct pci_device_id port_pci_ids[] = {
+	/* Intel Sunrisepoint */
+	{ PCI_VDEVICE(INTEL, 0x9d14), .driver_data = PCIE_PORT_SPT },
+	{ PCI_VDEVICE(INTEL, 0x9d15), .driver_data = PCIE_PORT_SPT },
 	/* handle any PCI-Express port */
 	{ PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0),
 	  .driver_data = PCIE_PORT_DEFAULT },