of_fpga_region_get_mgr(9)

💅 of_fpga_region_get_mgr — kernel API manual, bestie edition ✨

Okay so bestie, welcome to the Kernel API Manual 🎀 — this one's a little function from the 9 section and honestly? It's giving "small but mighty." Let's get into it.

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🌸 NAME 🌸

of_fpga_region_get_mgr — literally just "get reference for FPGA manager." That's the whole gig. Iconic, lowkey, does exactly what it says on the tin 💖

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✨ SYNOPSIS ✨

struct fpga_manager * of_fpga_region_get_mgr (struct device_node *np );

That's the signature, no cap. Returns a pointer to struct fpga_manager, takes one struct device_node * named np 🦋

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🫶 ARGUMENTS 🫶

• np — the device_node of the FPGA region. That's it. That's the whole argument list. She's low-maintenance 💅

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🔥 DESCRIPTION 🔥

So here's the tea ☕: this function gets you the FPGA Manager from the "fpga-mgr" property — or, if that's not where it's at, from an ancestor region. Either way, you're getting your manager 🧚

⚠️ Bestie, listen — the caller should call fpga_mgr_put when done with the manager. Not optional, not a vibe, it's a whole refcount thing. Put it back when you're finished, fr fr 🙈

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💜 RETURN 💜

You get back the fpga_manager struct — ✨ slay ✨ — or an IS_ERR condition containing an error code, in which case... not slay, but check it anyway 😭

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🌈 SEE ALSO 🌈

Kernel file ./drivers/fpga/of-fpga-region.c — and the whole friend group:

• of_fpga_region_find(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_notify(9)
• of_fpga_region_init(9)

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and that's the whole page, bestie — go forth and manage your FPGAs responsibly 👑

kisses from the ./drivers/fpga directory 💋 — dated October 2026, filed under of_fpga_region_get_mgr(9). mwah 🍓