optc301_set_drr(9)

🌸 optc301_set_drr — NAME 🌸

ok so this is optc301_set_drr and its whole vibe is programming the dynamic refresh rate registers — specifically the ones called m_OTGx_OTG_V_TOTAL_* 💅 like that's literally the job, bestie, that's what it does.

(also hi, you're reading a page from the Kernel API Manual — section 9, kernel-adjacent, very main character 🎀)

✨ SYNOPSIS ✨

void optc301_set_drr (struct timing_generator *optc , const struct
       drr_params *params );

that's the whole signature, no cap — returns void, takes an optc and a params, and that's it 🫶

🦋 ARGUMENTS 🦋

• optc — a timing_generator instance. yes queen, that's the thing you're poking at 🌈
• params — the parameters used for Dynamic Refresh Rate. the DRR deets, the whole point of the function honestly 😭

🔥 SEE ALSO 🔥

the kernel file where all of this actually lives, go read it iykyk:

• ./drivers/gpu/drm/amd/display/dc/optc/dcn301/dcn301_optc.c

lowkey a short page but every word slays 💖 don't skip the m_OTGx_OTG_V_TOTAL_* registers, they're the moment.

ok bye bestie, go set some refresh rates ✨🦋🍓

— sourced from ./drivers/gpu/drm/amd/display/..., dated October 2026, and signed off on page optc301_set_drr(9) 💅🎀