of_translate_dma_region(9)

🦋 of_translate_dma_region(9) 🦋

okay so bestie, welcome to the of_translate_dma_region(9) page from the Kernel API Manual — this is the one where we translate a device tree address and size tuple, and it’s lowkey iconic ✨

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🎀 NAME 🎀

of_translate_dma_region — Translate device tree address and size tuple 💖

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✨ SYNOPSIS ✨

const __be32 * of_translate_dma_region (struct device_node *dev , const
__be32 *prop , phys_addr_t *start , size_t *length );

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🌸 ARGUMENTS 🌸

• dev — device tree node for which to translate, no cap 🫶
• prop — pointer into array of cells, literally 💅
• start — return value for the start of the DMA range ✨
• length — return value for the length of the DMA range 💖

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🧚 DESCRIPTION 🧚

okay so here’s the tea: it returns a pointer to the cell immediately following the translated DMA region — that’s the whole vibe, bestie 💅

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🌈 SEE ALSO 🌈

• Kernel file: ./drivers/of/address.c
• of_property_read_reg(9)
• of_dma_get_range(9)
• of_dma_get_max_cpu_address(9)
• of_dma_is_coherent(9)
• of_mmio_is_nonposted(9)
• of_address_to_resource(9)
• of_iomap(9)

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signing off from ./drivers/of, dated October 2026 — periodt, mwah 💋👑