zynqmp_qspi_setuprxdma(9)

💅 zynqmp_qspi_setuprxdma — the kernel API manual, bestie edition ✨

okay so real talk, this page is from the Kernel API Manual (yes, that's the manual name, we're folding it in like a little name tag 🎀) and it's about one very specific function in the ZynqMP GQSPI driver. Let's get into it.

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✨ NAME ✨

zynqmp_qspi_setuprxdma — this function sets up the RX DMA operation 💖

like, that's literally its whole job. it gets the receive-side DMA all dressed and ready for the main character moment. no cap.

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🌸 SYNOPSIS 🌸

int zynqmp_qspi_setuprxdma (struct zynqmp_qspi *xqspi );

look at her. one argument, returns an int. iconic behavior honestly 💅

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🦋 ARGUMENTS 🦋

• xqspi — xqspi is a pointer to the GQSPI instance. 🫶 yes bestie, it's a pointer, and it points at your GQSPI instance, which is the thing you're setting up RX DMA for. that's the whole vibe.

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⭐ RETURN ⭐

0 on success; error value otherwise.

so like, 0 means slay 💖 and anything else means something went sideways and you should probably go look at it 👀.

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🔥 SEE ALSO 🔥

the whole friend group, fr fr:

• Kernel file ./drivers/spi/spi-zynqmp-gqspi.c struct
• qspi_platform_data(9)
• struct zynqmp_qspi(9)
• zynqmp_gqspi_read(9)
• zynqmp_gqspi_write(9)
• zynqmp_gqspi_selecttarget(9)
• zynqmp_qspi_set_tapdelay(9)
• zynqmp_qspi_init_hw(9)
• zynqmp_qspi_copy_read_data(9)
• zynqmp_qspi_chipselect(9)
• zynqmp_qspi_selectspimode(9)
• zynqmp_qspi_config_op(9)
• zynqmp_qspi_setup_op(9)
• zynqmp_qspi_filltxfifo(9)
• zynqmp_qspi_readrxfifo(9)
• zynqmp_qspi_fillgenfifo(9)
• zynqmp_qspi_disable_dma(9)
• zynqmp_qspi_enable_dma(9)
• zynqmp_process_dma_irq(9)
• zynqmp_qspi_irq(9)
• zynqmp_qspi_write_op(9)
• zynqmp_qspi_read_op(9)
• zynqmp_qspi_suspend(9)
• zynqmp_qspi_resume(9)
• zynqmp_runtime_suspend(9)
• zynqmp_runtime_resume(9)
• zynqmp_qspi_exec_op(9)
• zynqmp_qspi_probe(9)
• zynqmp_qspi_remove(9)

that's twenty-nine entries and yes I counted them, we don't skip a single one around here 💀✨

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ngl the source location on this one is a little terse, but it's ./drivers/spi and we're respecting it 🫶

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and that's the whole page, bestie 🌈 this gem is living in the ./drivers/spi directory, dated October 2026, and it's the zynqmp_qspi_setuprxdma(9) page from the Kernel API Manual — mwah, go set up that RX DMA 💋✨ no cap, periodt. 💅