tegra_emc_set_min_rate(9)

💜 tegra_emc_set_min_rate(9) — the Kernel API Manual glow-up ✨

okay so bestie, welcome to the <pink>tegra_emc_set_min_rate</pink> page from the good ol' Kernel API Manual (section 9, kernel-land, iykyk). this one's lowkey adorable — it's the function that raises the floor on your memory clock requests 🎀

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🌸 NAME 🌸

tegra_emc_set_min_rate — update the minimum rate request for a request type. that's it, that's the whole vibe 💅

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✨ SYNOPSIS ✨

int tegra_emc_set_min_rate (struct tegra_emc_rate_requests *reqs ,
unsigned long rate , enum tegra_emc_rate_request_type type );

like, three arguments, one int back. very demure, very mindful 🫶

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🦋 ARGUMENTS 🦋

• reqs — the rate request tracking state. this is the little notebook where all the requests are being kept 📓
• rate — the new minimum rate, in Hz, that type is asking for. yes, Hz, fr fr 🔥
• type — the type of request. which flavor of request is doing the asking 🌈

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💖 DESCRIPTION 💖

so what it does is: it records rate as the brand-new minimum rate request for type 👑 then it recalculates the target rate based on all the requests (not just yours, bestie, the whole group chat), and applies that new rate through the OPP API. slay.

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🧚 CONTEXT 🧚

it sleeps. not a nap in the middle of an interrupt, like an actual sleeping function, so mind where you call it 😭

requests to the same reqs are synchronized via mutex — so yes, the reqs are getting locked down, no cap. 🔒

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🎀 RETURN 🎀

• 0 — success 🎉 you ate
• -ERANGE — the request would cause the minimum rate request to be higher than the maximum rate request. that's a no from the vibes 💀 the floor can't be above the ceiling, bestie
• other — setting the new rate failed 🙈 (some other error, not gonna name names)

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/memory/tegra/tegra-emc-common.c — go read the source, iykyk 📖
• tegra_emc_rate_requests_init(9)
• tegra_emc_set_max_rate(9)

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lowkey reminder: this thing sleeps, so don't be out here calling it from somewhere spicy 🔥 and remember the mutex is doing the real main character work for same-reqs calls 💅

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that's the page, bestie 🫶 brought to you straight out of ./drivers/memory/tegra, dated October 2026, and yes — it's the tegra_emc_set_min_rate(9) manual page. periodt. ✨🎀💜