sf_pdma_irq_init(9)

✨ NAME ✨

okay bestie, welcome to sf_pdma_irq_init(9) from the Kernel API Manual 💖 — this one is literally the “Init PDMA IRQ Handlers” function, no cap.

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🌟 SYNOPSIS 🌟

int sf_pdma_irq_init (struct platform_device *pdev , struct sf_pdma
       *pdma );

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🎀 ARGUMENTS 🎀

• pdev — pointer of platform_device.
• pdma — pointer of PDMA engine. Caller should check NULL 🫶

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💅 DESCRIPTION 💅

So this function initializes the DONE and ERROR interrupt handler for 4 channels ✨. Caller should make sure the pointer passed in are non-NULL — like, fr fr, check it before you come through 🙈.

This function should be called only one time during the device probe. One time. That’s the vibe. Don’t make it a whole recurring thing 💀.

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🦋 CONTEXT 🦋

Any context. That’s it, that’s the context 🌈.

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👑 RETURN 👑

• 0 — OK to init all IRQ handlers ✅
• -EINVAL — Fail to request IRQ 😭

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🌸 SEE ALSO 🌸

Kernel file ./drivers/dma/sf-pdma/sf-pdma.c and sf_pdma_setup_chans(9) — go read those too, iykyk 💜.

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source/version: ./drivers/dma/sf-pdma; date: October 2026 — bye bestie, ttyl 💖🎀🫶