rl6231_pll_calc(9)

💅 rl6231_pll_calc(9) 💅

okay so this is a page from the Kernel API Manual, section 9 — it's the one about rl6231_pll_calc, and bestie, it's short but it matters. 🎀

NAME

rl6231_pll_calc — calculate the PLL M/N/K code. that's it, that's the whole job. ✨

✨ SYNOPSIS ✨

int rl6231_pll_calc (const unsigned int freq_in , const unsigned int
freq_out , struct rl6231_pll_code *pll_code );

like, she takes three things and hands you back an int. no cap. 🫶

🌸 ARGUMENTS 🌸

• freq_in — the external clock that's being fed into the codec. the incoming vibe check, basically. ⭐
• freq_out — the target clock that the codec actually wants to run on. the goal. the dream. the main character frequency. 👑
• pll_code — pointer to the struct that holds M, N, K, plus the m_bypass and k_bypass flags. this is where the answer gets dropped off. 💌

💖 DESCRIPTION 💖

calculate the M/N/K code so you can configure the PLL for the codec. literally that. you give it the clock going in and the clock you want out, and it does the math so you don't have to. 🧚

returns 0 on success, or a negative error code if things did not slay. 😭

ngl, that's the entire description — no secret extra params, no hidden behaviours, no lore. take the 0, or take the negative error code, and move on. 💀

🦋 SEE ALSO 🦋

• kernel file ./sound/soc/codecs/rl6231.c — the home of all this
• rl6231_get_pre_div(9)
• rl6231_calc_dmic_clk(9)

and that's the page, bestie 💜 — brought to you by the lovely humans over in ./sound/soc/codecs, dated October 2026. go forth and configure your PLL correctly, iykyk 🌈💅