opp1_set_truncation(9)

🎀 opp1_set_truncation(9) — Kernel API Manual 🎀

okay bestie, welcome to the opp1_set_truncation(9) page — this is the Kernel API Manual moment, and we are keeping every single detail, no cap 💖

✨ NAME ✨

opp1_set_truncation — this function does three things, and yes, all three are part of the package:

1. set truncation depth: 0 for 18 bpp or 1 for 24 bpp
2. enable truncation
3. HW remove 12bit FMT support for DCE11 power saving reason

periodt. that's the whole name-section vibe 💅

🌸 SYNOPSIS 🌸

void opp1_set_truncation (struct dcn10_opp *oppn10 , const struct
bit_depth_reduction_params *params );

🦋 ARGUMENTS 🦋

• oppn10 — the output_pixel_processor struct instance for dcn10, iconic honestly.
• params — a pointer to bit_depth_reduction_params, as promised.

💜 SEE ALSO 💜

• Kernel file ./drivers/gpu/drm/amd/display/dc/opp/dcn10/dcn10_opp.c
• opp1_set_pixel_encoding(9), opp1_set_clamping(9)

Signing off from ./drivers/gpu/drm/amd/display/..., dated October 2026 — opp1_set_truncation(9) out, mwah 💋✨🫶