of_mmio_is_nonposted(9)

of_mmio_is_nonposted(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ this one is literally about checking if a device uses non-posted MMIO, and it's giving "small function, big vibes" 🎀

🌸 NAME 🌸

of_mmio_is_nonposted — Check if device uses non-posted MMIO 💅

🦋 SYNOPSIS 🦋

bool of_mmio_is_nonposted (const struct device_node *np );

🫶 ARGUMENTS 🫶

• np — device node

💖 DESCRIPTION 💖

Returns true if the "nonposted-mmio" property was found for the device's bus. That's the whole check, bestie — no cap, she's simple and iconic 🧚

🌈 SEE ALSO 🌈

Kernel file ./drivers/of/address.c plus these besties:

• of_translate_dma_region(9)
• of_property_read_reg(9)
• of_dma_get_range(9)
• of_dma_get_max_cpu_address(9)
• of_dma_is_coherent(9)
• of_address_to_resource(9)
• of_iomap(9)

mwah 💋 that's the whole page — source/version ./drivers/of, dated October 2026, and this is of_mmio_is_nonposted(9) signing off 🦋✨