wm8960_configure_sysclk(9)

💖 wm8960_configure_sysclk(9) 💖

okay so this is a page from the Kernel API Manual bestie, and it's all about wm8960_configure_sysclk — literally the function that checks if there's a sysclk frequency available for you. 🎀

✨ NAME ✨

wm8960_configure_sysclk — checks if there is a sysclk frequency available 🌸

The sysclk must be chosen such that:

• sysclk = MCLK / sysclk_divs
• lrclk = sysclk / dac_divs
• 10 * bclk = sysclk / bclk_divs

like, those three relationships are the whole vibe check. no cap. 🦋

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🌈 SYNOPSIS 🌈

int wm8960_configure_sysclk (struct wm8960_priv *wm8960 , int mclk , int
*sysclk_idx , int *dac_idx , int *bclk_idx );

🫶 ARGUMENTS 🫶

• wm8960 — the codec private data, i.e. the main character's personal info 💅
• mclk — the MCLK that's used to derive sysclk, the raw ingredient basically ✨
• sysclk_idx — the sysclk_divs index for the found sysclk 📍
• dac_idx — the dac_divs index for the found lrclk 📍
• bclk_idx — the bclk_divs index for the found bclk 📍

🔥 RETURN 🔥

• -1 — in case no sysclk frequency available is found 😭 (sad girl hours)
• >=0 — in case we could derive bclk and lrclk from sysclk using the (sysclk_idx, dac_idx, bclk_idx) dividers 🎉 slay!!

fr fr, that >=0 is the good ending — it means all three divider indices got filled in and everything lines up 💖

👑 SEE ALSO 👑

• Kernel file ./sound/soc/codecs/wm8960.c 📄
• wm8960_configure_pll(9) — its sibling, go read that one too 🧚

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and that's the whole page, bestie!! tysm for reading 💜 this little gem lives in ./sound/soc/codecs and the version on the tin is dated October 2026 — catch you in the next manpage, mwah 🎀✨💅