of_pci_supply_present(9)

🎀 of_pci_supply_present(9) 🎀

Okay bestie, this is the Kernel API Manual entry for of_pci_supply_present(9), and it is literally here to answer one very specific question: is the power supply for the PCI device present? Iconic behavior, honestly. 💅

✨ NAME ✨

of_pci_supply_present — check if the power supply is present for the PCI device. Slay. 🌸

🦋 SYNOPSIS 🦋

bool of_pci_supply_present (struct device_node *np );

💖 ARGUMENTS 💖

• np — Device tree node. That's the whole vibe right there. 🫶

🔥 DESCRIPTION 🔥

This is the part where we check if the power supply for the PCI device is present in the device tree node or not. It's giving presence check, no cap. 👑

🌈 RETURN 🌈

true if at least one power supply exists; false otherwise. So: true when at least one is there, false when it isn't. Periodt. ✨

👑 SEE ALSO 👑

Kernel file: ./drivers/pci/of.c — yes, that's the spot. 🎀

• pci_set_of_node(9)
• of_pci_get_devfn(9)
• of_pci_parse_bus_range(9)
• of_get_pci_domain_nr(9)
• of_pci_preserve_config(9)
• of_pci_check_probe_only(9)
• devm_of_pci_get_host_bridge_resources(9)
• of_irq_parse_pci(9)
• of_irq_parse_and_map_pci(9)
• of_pci_get_max_link_speed(9)
• of_pci_get_slot_power_limit(9)
• of_pci_get_equalization_presets(9)

Signed from ./drivers/pci — October 2026 — of_pci_supply_present(9) 💖