geni_se_tx_dma_unprep(9)

okay so bestie 💅 welcome to geni_se_tx_dma_unprep(9) from the Kernel API Manual — yes, the page title is also the function name, and she’s giving main character energy fr fr. This is the short-and-sweet cleanup page for a TX DMA transfer, and we’re keeping every single detail. No cap.

💖 NAME 💖

geni_se_tx_dma_unprep — unprepare the serial engine after a TX DMA transfer. That’s the whole name, periodt: it’s the cleanup step after the TX DMA transfer for the serial engine.

✨ SYNOPSIS ✨

The signature is exactly this, bestie — don’t let anyone “fix” the spacing:

void geni_se_tx_dma_unprep (struct geni_se *se , dma_addr_t iova , size_t len );

🎀 ARGUMENTS 🎀

Three arguments, three little besties:

• se — pointer to the concerned serial engine.
• iova — DMA address of the TX buffer.
• len — length of the TX buffer.

🦋 DESCRIPTION 🦋

This function is used to unprepare the DMA buffers after DMA TX. That’s the tea: it’s the unprep moment after the TX DMA transfer, not the setup. No extra plot twists, just cleanup business.

🌈 SEE ALSO 🌈

okay bestie, this list is giving ✨extended universe✨. Every single ref is here, in the original order, including the double Overview(9) cameo — yes, it’s listed twice in the original and I’m not erasing her 👑.

• Kernel file ./drivers/soc/qcom/qcom-geni-se.c
• Overview(9)
• Hardware description(9)
• Software description(9)
• struct geni_wrapper(9)
• struct geni_se_desc(9)
• struct se_fw_hdr(9)
• geni_se_get_qup_hw_version(9)
• geni_se_init(9)
• geni_se_select_mode(9)
• Overview(9) — yep, again, iconic duplicate behavior 💅
• geni_se_config_packing(9)
• geni_se_resources_off(9)
• geni_se_resources_on(9)
• geni_se_clk_tbl_get(9)
• geni_se_clk_freq_match(9)
• geni_se_tx_init_dma(9)
• geni_se_tx_dma_prep(9)
• geni_se_rx_init_dma(9)
• geni_se_rx_dma_prep(9)
• geni_se_rx_dma_unprep(9)
• geni_icc_set_bw_ab(9)
• geni_se_resources_deactivate(9)
• geni_se_resources_activate(9)
• geni_se_set_perf_level(9)
• geni_se_set_perf_opp(9)
• geni_se_domain_attach(9)
• geni_se_resources_init(9)
• geni_find_protocol_fw(9)
• geni_configure_xfer_mode(9)
• geni_enable_interrupts(9)
• geni_write_fw_revision(9)
• geni_load_se_fw(9)
• geni_load_se_firmware(9)

okay that’s the whole page, bestie 🫶 — source/version line: ./drivers/soc/qcom, date: October 2026, page: geni_se_tx_dma_unprep(9) from the Kernel API Manual. Catch you in the kernel, mwah 💅✨