ep93xx_spi_calc_divisors(9)

✨ ep93xx_spi_calc_divisors ✨

okay so bestie, welcome to the Kernel API Manual — this one's a tiny little kernel helper from the SPI world, and it's literally just here to do math for you 💅

🎀 NAME

ep93xx_spi_calc_divisors — the function that calculates SPI clock divisors ⭐

Like, that's it. That's the whole job. It does the clock math so you don't have to. Slay.

---

🌸 SYNOPSIS

int ep93xx_spi_calc_divisors (struct spi_controller *host , u32 rate ,
u8 *div_cpsr , u8 *div_scr );

Returns an int. Takes a host, a rate, and two pointers to write dividers into. Very demure, very mindful 🫶

---

🦋 ARGUMENTS

• host — the SPI host 🎀 (your struct spi_controller *, the main character of this whole operation)
• rate — the desired SPI output clock rate, as a u32. i.e. the speed you're dreaming of ✨
• div_cpsr — pointer to return the cpsr (pre-scaler) divider — it writes the pre-scaler back out through here 🔥
• div_scr — pointer to return the scr divider through here 🌈

so yeah, you hand it the host + the rate you want, and it hands you back both dividers via those pointers. no cap.

---

👑 SEE ALSO

• Kernel file ./drivers/spi/spi-ep93xx.c 📁
• struct ep93xx_spi(9)
• ep93xx_spi_read_write(9)
• ep93xx_spi_dma_prepare(9)
• ep93xx_spi_dma_finish(9)

go read those if you wanna see the whole squad in action, iykyk 💜

---

ngl this one's short and sweet — no options, no env vars, no exit statuses, no bugs listed. just vibes, dividers, and a struct spi_controller *. drink water, check your return value, periodt 💖

---

okay that's the whole page bestie!! this came from the source ./drivers/spi and it's dated October 2026 — so mark your calendar, mwah 😭🫶💅