of_fpga_region_notify(9)

💖 of_fpga_region_notify(9) 💖

okay bestie, welcome to the Kernel API Manual entry for of_fpga_region_notify(9) — we are officially in FPGA-notifier territory and it is lowkey iconic ✨.

🎀 NAME 🎀

of_fpga_region_notify — reconfig notifier for dynamic DT changes 💅. That's the whole name, no cap.

✨ SYNOPSIS ✨

int of_fpga_region_notify (struct notifier_block *nb , unsigned long
       action , void *arg );

🫶 ARGUMENTS 🫶

• nb — the notifier block 🧚
• action — the notifier action ⭐
• arg — the reconfig data 🎀

💅 DESCRIPTION 💅

okay so here's the vibe: this notifier handles programming an FPGA when a "firmware-name" property is added to an fpga-region 🦋. That's literally its whole main-character job. The "firmware-name" property shows up, the fpga-region gets the reconfig treatment, and this notifier is on the case 💜.

🌈 RETURN 🌈

It returns NOTIFY_OK — or an error if FPGA programming fails 😭. So yeah, success is NOTIFY_OK, and failure is giving error energy, fr fr.

🦋 SEE ALSO 🦋

• Kernel file ./drivers/fpga/of-fpga-region.c 🍓
• of_fpga_region_find(9)
• of_fpga_region_get_mgr(9)
• of_fpga_region_get_bridges(9)
• child_regions_with_firmware(9)
• of_fpga_region_parse_ov(9)
• of_fpga_region_notify_pre_apply(9)
• of_fpga_region_notify_post_remove(9)
• of_fpga_region_init(9)

mwah 💋 — from the source/version corner ./drivers/fpga, dated October 2026, with of_fpga_region_notify(9) signing off 🫶