exynos5_dmc_align_init_freq(9)

💅 exynos5_dmc_align_init_freq — the "make the bootloader's vibe match ours" era

okay so bestie, welcome to the exynos5_dmc_align_init_freq(9) page — it's a kernel API manual (section 9, we love a kernel-doc moment 🔥) and it's literally all about making one lil frequency number ✨line up✨ with reality.

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🌸 NAME 🌸

exynos5_dmc_align_init_freq — Align initial frequency value 🎀

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✨ SYNOPSIS ✨

unsigned long exynos5_dmc_align_init_freq(struct exynos5_dmc *dmc,
                                          unsigned long bootloader_init_freq);

like, it hands you back an unsigned long, no cap. 👑

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🫶 ARGUMENTS 🫶

• dmc — the device we're about to set a frequency on. the main character of this whole operation 💖
• bootloader_init_freq — the initial frequency that the bootloader set, measured in KHz. ngl it's giving "hand-me-down value from before you got here" 🙈

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🦋 DESCRIPTION 🦋

okay so here's the tea ☕: the initial bootloader frequency — the one that's already present during boot — might be different from the supported frequency values in the driver. 😭 and it's not even anyone's fault! it can happen because of different PLL settings, or because of which PLL got used as a source. different PLL, different vibe, iykyk.

so this function is the one that provides the initial_freq for the devfreq framework statistics engine — and that engine? it only supports registered values. periodt. no unregistered frequencies allowed at the function, security would like a word 💀

which means: some alignment must be made. that's it, that's the whole job. she aligns. she slays. 💅

no like fr fr, don't skip this step — the stats engine will not be accepting off-menu numbers 🎀

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🌈 SEE ALSO 🌈

the whole friend group, in the exact order they showed up to the group chat 👑:

• Kernel file ./drivers/memory/samsung/exynos5422-dmc.c
• struct dmc_opp_table(9)
• struct exynos5_dmc(9)
• find_target_freq_idx(9)
• exynos5_switch_timing_regs(9)
• exynos5_init_freq_table(9)
• exynos5_set_bypass_dram_timings(9)
• exynos5_dram_change_timings(9)
• exynos5_dmc_align_target_voltage(9)
• exynos5_dmc_align_bypass_voltage(9)
• exynos5_dmc_align_bypass_dram_timings(9)
• exynos5_dmc_switch_to_bypass_configuration(9)
• exynos5_dmc_change_freq_and_volt(9)
• exynos5_dmc_get_volt_freq(9)
• exynos5_dmc_target(9)
• exynos5_counters_get(9)
• exynos5_dmc_start_perf_events(9)
• exynos5_dmc_perf_events_calc(9)
• exynos5_dmc_perf_events_check(9)
• exynos5_dmc_enable_perf_events(9)
• exynos5_dmc_disable_perf_events(9)
• exynos5_dmc_get_status(9)
• exynos5_dmc_get_cur_freq(9)
• create_timings_aligned(9)
• of_get_dram_timings(9)
• exynos5_dmc_init_clks(9)
• exynos5_performance_counters_init(9)
• exynos5_dmc_set_pause_on_switching(9)
• exynos5_dmc_probe(9)
• exynos5_dmc_remove(9)

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and that's the whole page, bestie 🎀✨ she came from ./drivers/memory/samsung (iconic source directory, no notes 💜), dated October 2026, and yes — the manual header is literally still exynos5_dmc_align_init_freq(9) because we don't do rebrands here 💅 see u in the next manpage, mwah 🫶🌸