dm_need_dp_aux(9)

✨ dm_need_dp_aux(9) — NAME ✨

okay bestie, welcome to dm_need_dp_aux(9) from the Kernel API Manual (section 9, periodt). This little function is basically the vibe check for one very specific question: does this source transition require the DP AUX handle? 💅

🌸 SYNOPSIS 🌸

bool dm_need_dp_aux (enum amdgpu_dm_pipe_crc_source source , enum
amdgpu_dm_pipe_crc_source cur_crc_src );

🎀 ARGUMENTS 🎀

• source — the requested CRC source, like, the one you're trying to move to 👀
• cur_crc_src — the current CRC source, aka where you're at right now 🫶

🦋 DESCRIPTION 🦋

So here's the tea: this returns true when either the new source is DPRX-based (that's starting DPRX CRC), or the current cur_crc_src is DPRX-based and the new source is NONE (that's stopping it). ✨

Literally that's the whole transition drama. No cap. 💖

⭐ RETURN ⭐

true if the DP AUX handle is needed, false otherwise. iconic behavior, honestly 👑

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
• dm_crc_source_should_start_dprx(9)
• dm_crc_source_should_stop_dprx(9)
• amdgpu_dm_crtc_handle_crc_irq(9)

and that's the page, bestie 🫶 mwah 💋 — sourced from ./drivers/gpu/drm/amd/display/..., dated October 2026 🎀