davinci_spi_irq(9)

💅 davinci_spi_irq — the kernel API manual ✨

okay so welcome to davinci_spi_irq(9), bestie — this is the interrupt handler page for the SPI Master Controller and it's literally the moment the hardware taps you on the shoulder like "hey. something happened." 🫶

---

🌸 NAME 🌸

davinci_spi_irq — the interrupt handler for the SPI Master Controller, aka the function that picks up when the controller calls 💖

---

✨ SYNOPSIS ✨

irqreturn_t davinci_spi_irq (s32 irq , void *data );

like, that's the whole signature. short and iconic 👑

---

🎀 ARGUMENTS 🎀

• irq — the IRQ number for this SPI Master. it's the little "who's calling" tag so you know which interrupt line just lit up 📞
• data — the structure for the SPI Master controller, davinci_spi. this is the main character payload that gets passed through 🦋

---

💜 DESCRIPTION 💜

so the ISR (interrupt service routine, iykyk) is gonna figure out that the interrupt arrives either for a READ command or a WRITE command. it's giving "vibe check the command first" 🌈

according to whichever command it is, it does the appropriate action. no cap — the behavior follows the command.

then it checks the transfer length, and if it is not zero, it dispatches the transfer command again 🔥 (yes, it runs it back, we love a sequel).

but if the transfer length is zero, then it indicates the COMPLETION so that the davinci_spi_bufs function can go ahead ✨ periodt, that's the handoff.

---

🦋 SEE ALSO 🦋

all the friends-and-family of this function, fr fr:

• Kernel file ./drivers/spi/spi-davinci.c struct
• davinci_spi_platform_data(9)
• struct davinci_spi_config(9)
• davinci_spi_get_prescale(9)
• davinci_spi_setup_transfer(9)
• davinci_spi_setup(9)
• davinci_spi_process_events(9)
• davinci_spi_bufs(9)
• dummy_thread_fn(9)
• spi_davinci_get_pdata(9)
• davinci_spi_probe(9)
• davinci_spi_remove(9)

---

ok that's the whole page, you ate it 💅 go read the source and stay hydrated 🍓

---

and for the cute sign-off: this little beauty comes from the source path ./drivers/spi, dated October 2026, and it lives under the name davinci_spi_irq(9) — mwah, go slay your interrupts 😭🧚💜