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| author | Vaibhav Gupta <vaibhavgupta40@gmail.com> | 2021-01-12 13:39:24 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-12-14 11:26:19 -0600 |
| commit | 0aeddbd0cb078116c19b8ca511cc1882b581671b (patch) | |
| tree | 1ff0e6e87a8645f89a6ab725ca10f300a911de8f /tools/perf/scripts/python | |
| parent | 6d1adc3d46a785cdb3cb0352ec9ad6fee5bb892b (diff) | |
via-agp: convert to generic power management
Convert via-agp from legacy PCI power management to the generic power
management framework.
Previously, via-agp used legacy PCI power management, and agp_via_suspend()
and agp_via_resume() were responsible for both device-specific things and
generic PCI things:
agp_via_suspend
pci_save_state(pdev) <-- generic PCI
pci_set_power_state(pdev, pci_choose_state(pdev, state)) <-- generic PCI
agp_via_resume
pci_set_power_state(pdev, PCI_D0) <-- generic PCI
pci_restore_state(pdev) <-- generic PCI
via_configure_agp3() <-- device-specific
via_configure() <-- device-specific
With generic power management, the PCI bus PM methods do the generic PCI
things, and the driver needs only the device-specific part, i.e.,
suspend_devices_and_enter
dpm_suspend_start(PMSG_SUSPEND)
pci_pm_suspend # PCI bus .suspend() method
agp_via_suspend <-- not needed at all; removed
suspend_enter
dpm_suspend_noirq(PMSG_SUSPEND)
pci_pm_suspend_noirq # PCI bus .suspend_noirq() method
pci_save_state <-- generic PCI
pci_prepare_to_sleep <-- generic PCI
pci_set_power_state
...
dpm_resume_end(PMSG_RESUME)
pci_pm_resume # PCI bus .resume() method
pci_restore_standard_config
pci_set_power_state(PCI_D0) <-- generic PCI
pci_restore_state <-- generic PCI
agp_via_resume # dev->driver->pm->resume
via_configure_agp3() <-- device-specific
via_configure() <-- device-specific
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20211208193305.147072-4-helgaas@kernel.org
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions