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| author | jkim <jkim@FreeBSD.org> | 2010-10-20 16:47:09 +0000 |
|---|---|---|
| committer | jkim <jkim@FreeBSD.org> | 2010-10-20 16:47:09 +0000 |
| commit | 0ed43ce056fe56ef364d95425406491085c93d7e (patch) | |
| tree | 1860d37b19d1eea9c460d5dac009f292d17cd26f /sys/dev/acpica | |
| parent | 995314da5fb054dcab0630293481767905c19a22 (diff) | |
| download | FreeBSD-src-0ed43ce056fe56ef364d95425406491085c93d7e.zip FreeBSD-src-0ed43ce056fe56ef364d95425406491085c93d7e.tar.gz | |
Introduce a new tunable 'hw.pci.do_power_suspend'. This tunable lets you
avoid PCI power state transition from D0 to D3 for suspending case. Default
is 1 or enabled.
Diffstat (limited to 'sys/dev/acpica')
| -rw-r--r-- | sys/dev/acpica/acpi_pci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/acpica/acpi_pci.c b/sys/dev/acpica/acpi_pci.c index bf7cf2e..a14e0ba 100644 --- a/sys/dev/acpica/acpi_pci.c +++ b/sys/dev/acpica/acpi_pci.c @@ -179,7 +179,7 @@ acpi_pci_set_powerstate_method(device_t dev, device_t child, int state) */ ACPI_SERIAL_BEGIN(pci_powerstate); old_state = pci_get_powerstate(child); - if (old_state < state) { + if (old_state < state && pci_do_power_suspend) { error = pci_set_powerstate_method(dev, child, state); if (error) goto out; |
