| Message ID | 20181122071512.14324-4-kai.heng.feng@canonical.com |
|---|---|
| State | New |
| Headers | show |
| Series | Power consumption during s2idle is higher than long idle (Intel SSDPEKKF) | expand |
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index d5cdd2905a66..714293af7605 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2680,6 +2680,8 @@ static const struct pci_device_id nvme_id_table[] = { { PCI_VDEVICE(INTEL, 0xf1a5), /* Intel 600P/P3100 */ .driver_data = NVME_QUIRK_NO_DEEPEST_PS | NVME_QUIRK_MEDIUM_PRIO_SQ }, + { PCI_VDEVICE(INTEL, 0xf1a6), + .driver_data = NVME_QUIRK_NO_DISABLE, }, { PCI_VDEVICE(INTEL, 0x5845), /* Qemu emulated controller */ .driver_data = NVME_QUIRK_IDENTIFY_CNS, }, { PCI_DEVICE(0x1bb1, 0x0100), /* Seagate Nytro Flash Storage */
BugLink: https://bugs.launchpad.net/bugs/1804588 Call nvme_dev_disable() function leads to the power consumption goes up to 2.8 Watt during suspend-to-idle, and from Intel FE, they suggest us to use its own APST feature to do the power management during s2idle. After D3 is diabled and nvme_dev_disable() is not called while suspending, the power consumption drops 2.8 Watts during s2idle. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> --- drivers/nvme/host/pci.c | 2 ++ 1 file changed, 2 insertions(+)