diff options
| author | Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> | 2026-01-15 12:59:01 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-01-16 13:23:38 -0600 |
| commit | 113f44ed50d274447a3b76cf250989a423f179a5 (patch) | |
| tree | 318184577be27e00bd4a601de642fb6f636538fa /include | |
| parent | 2045c352812e5a2eec0aa9d2b1e5d2fe1127b919 (diff) | |
PCI/pwrctrl: Add 'struct pci_pwrctrl::power_{on/off}' callbacks
To allow the pwrctrl core to control the power on/off sequences of the
pwrctrl drivers, add the 'struct pci_pwrctrl::power_{on/off}' callbacks and
populate them in the respective pwrctrl drivers.
The pwrctrl drivers still power on the resources on their own now. So there
is no functional change.
Co-developed-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260115-pci-pwrctrl-rework-v5-9-9d26da3ce903@oss.qualcomm.com
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pci-pwrctrl.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pci-pwrctrl.h b/include/linux/pci-pwrctrl.h index 4aefc7901cd1..435b822c841e 100644 --- a/include/linux/pci-pwrctrl.h +++ b/include/linux/pci-pwrctrl.h @@ -31,6 +31,8 @@ struct device_link; /** * struct pci_pwrctrl - PCI device power control context. * @dev: Address of the power controlling device. + * @power_on: Callback to power on the power controlling device. + * @power_off: Callback to power off the power controlling device. * * An object of this type must be allocated by the PCI power control device and * passed to the pwrctrl subsystem to trigger a bus rescan and setup a device @@ -38,6 +40,8 @@ struct device_link; */ struct pci_pwrctrl { struct device *dev; + int (*power_on)(struct pci_pwrctrl *pwrctrl); + int (*power_off)(struct pci_pwrctrl *pwrctrl); /* private: internal use only */ struct notifier_block nb; |