exynos5_dram_change_timings(9)

🌸 exynos5_dram_change_timings(9) 🌸

okay bestie, this page is from the Kernel API Manual ✨ and we're talking about exynos5_dram_change_timings — literally low-level changes of the DRAM final timings. niche? yes. iconic? also yes 💅

🎀 NAME 🎀

exynos5_dram_change_timings — Low-level changes of the DRAM final timings.

✨ SYNOPSIS ✨

int exynos5_dram_change_timings (struct exynos5_dmc *dmc , unsigned long
target_rate );

🫶 ARGUMENTS 🫶

• dmc — device for which the new settings is going to be applied.
• target_rate — target frequency of the DMC.

💖 DESCRIPTION 💖

okay so this is the low-level function for changing timings for DRAM memory operating from main clock source (BPLL), which can have different frequencies. and the way that each frequency must have corresponding timings register values in order to keep the needed delays? yeah, that's the whole assignment — no cap 😭✨

It uses timing bank registers set 0. periodt 💅

🦋 SEE ALSO 🦋

Kernel file ./drivers/memory/samsung/exynos5422-dmc.c, plus the whole friend group:

• 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_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)
• exynos5_dmc_align_init_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)

xoxo bestie 💖 source/version: ./drivers/memory/samsung, date: October 2026. slay ✨