tegra_dfll_unregister(9)

💅 tegra_dfll_unregister(9) 💅

okay so this one’s from the Kernel API Manual, and it’s giving “cleanup era” ✨ bestie, let’s get into it.

🌸 NAME 🌸

tegra_dfll_unregister — release all of the DFLL driver resources for a device

🎀 SYNOPSIS 🎀

struct tegra_dfll_soc_data * tegra_dfll_unregister (struct
       platform_device *pdev );

🦋 ARGUMENTS 🦋

• pdev — DFLL platform_device *

✨ DESCRIPTION ✨

Okay bestie, here’s the vibe: this unbinds this driver from the DFLL hardware device represented by pdev. The DFLL must be disabled for this to succeed — fr fr, no cap. Returns a soc pointer upon success or -EBUSY if the DFLL is still active.

lowkey important: if the DFLL is still active, you get -EBUSY — that’s the whole mood 💀

🔥 SEE ALSO 🔥

Kernel file ./drivers/clk/tegra/clk-dfll.c — plus the whole iconic squad:

• 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_tune_low(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)

xoxo, your kernel bestie 💖 — source/version: ./drivers/clk/tegra; date: October 2026 ✨