dfll_tune_low(9)

💅 dfll_tune_low(9) — like, the whole vibe

okay so welcome to the Kernel API Manual bestie, today we're doing dfll_tune_low(9) and honestly? she's a little baddie. 🎀

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✨ NAME ✨

dfll_tune_low — tune to the DFLL and CPU settings that are valid for any voltage 🦋

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🌸 SYNOPSIS 🌸

void dfll_tune_low (struct tegra_dfll *td );

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💖 ARGUMENTS 💖

• td — the DFLL instance, that's her, that's the main character 👑

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🔥 DESCRIPTION 🔥

So what she does is tune the DFLL oscillator parameters and the CPU clock shaper for the low-voltage range. Two things at once, multitasking icon behavior fr fr. 💅

Now, important caveat bestie, listen up: these settings are valid for any voltage — but they may not be optimal. It's giving "works everywhere, perfect nowhere" 😭. No cap, she's the reliable friend, not the overachiever.

lowkey useful in every situation, highkey not the best in any of them 🫶

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🧚 SEE ALSO 🧚

the whole friend group, honestly — they all live in the kernel file ./drivers/clk/tegra/clk-dfll.c 🌈:

• enum dfll_ctrl_mode(9)
• enum dfll_tune_range(9)
• struct dfll_rate_req(9)
• dfll_is_running(9)
• tegra_dfll_runtime_resume(9)
• tegra_dfll_runtime_suspend(9)
• dfll_scale_dvco_rate(9)
• dfll_set_mode(9)
• dfll_i2c_set_output_enabled(9)
• dfll_pwm_set_output_enabled(9)
• dfll_set_force_output_value(9)
• dfll_set_force_output_enabled(9)
• dfll_force_output(9)
• dfll_load_i2c_lut(9)
• dfll_init_i2c_if(9)
• dfll_init_out_if(9)
• find_lut_index_for_rate(9)
• dfll_calculate_rate_request(9)
• dfll_set_frequency_request(9)
• dfll_request_rate(9)
• dfll_disable(9)
• dfll_enable(9)
• dfll_set_open_loop_config(9)
• dfll_lock(9)
• dfll_unlock(9)
• dfll_register_clk(9)
• dfll_unregister_clk(9)
• dfll_calc_monitored_rate(9)
• dfll_read_monitor_rate(9)
• dfll_set_default_params(9)
• dfll_init_clks(9)
• dfll_init(9)
• tegra_dfll_suspend(9)
• tegra_dfll_resume(9)
• dfll_build_i2c_lut(9)
• read_dt_param(9)
• dfll_fetch_i2c_params(9)
• dfll_fetch_common_params(9)
• tegra_dfll_register(9)
• tegra_dfll_unregister(9)

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that's the whole page bestie, go forth and tune 🌟

mwah 💋 — this lil sign-off comes to you from ./drivers/clk/tegra, dated October 2026, and yeah she's still filed under dfll_tune_low(9) 🍓