_update_sysc_cache(9)

👑 _update_sysc_cache(9) — the Kernel API Manual glow-up

okay so bestie, listen — this one lives in the Kernel API Manual and it's honestly such a vibe. tiny function, big "save it for later" energy. let's get into it 💅

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✨ NAME ✨

_update_sysc_cache — grab the module OCP_SYSCONFIG register and keep a lil copy of it, no cap 🫶

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🌸 SYNOPSIS 🌸

int _update_sysc_cache (struct omap_hwmod *oh );

yes that's the whole thing. iconic minimalism honestly ✨

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🎀 ARGUMENTS 🎀

• oh — type struct omap_hwmod *. that's your hwmod bestie, the one whose register is getting sniffed 👀

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🦋 DESCRIPTION 🦋

so here's the tea ☕ — this function loads the current value of the hwmod's OCP_SYSCONFIG register and drops it into the struct omap_hwmod so it's saved for later use. like screenshotting a text before it gets edited, ykwim? 📸

then it tells you how it went:

• returns -EINVAL if the hwmod has no OCP_SYSCONFIG register at all (💀 the audacity, honestly)
• returns 0 on success — slay, we ate 💖

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🌈 SEE ALSO 🌈

okay this list is long long, but bestie I would never leave a single one out, so buckle up 🧚💜

• Kernel file ./arch/arm/mach-omap2/omap_hwmod.c struct
• clkctrl_provider(9), struct omap_hwmod_reset(9), struct omap_hwmod_soc_ops(9), _write_sysconfig(9), _set_master_standbymode(9), _set_slave_idlemode(9), _set_clockactivity(9), _set_softreset(9)
• _clear_softreset(9), _wait_softreset_complete(9), _set_dmadisable(9), _set_module_autoidle(9), _enable_wakeup(9), _add_initiator_dep(9), _del_initiator_dep(9), _init_main_clk(9), _init_interface_clks(9)
• _init_opt_clks(9), _enable_clocks(9), _omap4_clkctrl_managed_by_clkfwk(9), _omap4_has_clkctrl_clock(9), _disable_clocks(9), _omap4_enable_module(9), _omap4_wait_target_disable(9), _save_mpu_port_index(9)
• _find_mpu_rt_port(9), _enable_sysc(9), _idle_sysc(9), _shutdown_sysc(9), _lookup(9), _init_clkdm(9), _init_clocks(9), _lookup_hardreset(9), _assert_hardreset(9), _deassert_hardreset(9)
• _read_hardreset(9), _are_all_hardreset_lines_asserted(9), _are_any_hardreset_lines_asserted(9), _omap4_disable_module(9), _ocp_softreset(9), _reset(9), _omap4_update_context_lost(9), _omap4_get_context_lost(9)
• _enable(9), _idle(9), _shutdown(9), of_dev_hwmod_lookup(9), omap_hwmod_fix_mpu_rt_idx(9), omap_hwmod_parse_module_range(9), _init_mpu_rt_base(9), _init(9)
• _setup_iclk_autoidle(9), _setup_reset(9), _setup_postsetup(9), _setup(9), _register(9), _add_link(9), _register_link(9), _omap2xxx_3xxx_wait_target_ready(9), _omap4_wait_target_ready(9)
• _omap2_assert_hardreset(9), _omap2_deassert_hardreset(9), _omap2_is_hardreset_asserted(9), _omap4_assert_hardreset(9), _omap4_deassert_hardreset(9), _omap4_is_hardreset_asserted(9), _omap4_disable_direct_prcm(9), _am33xx_deassert_hardreset(9)
• omap_hwmod_softreset(9), omap_hwmod_lookup(9), omap_hwmod_for_each(9), omap_hwmod_register_links(9), _ensure_mpu_hwmod_is_setup(9), omap_hwmod_setup_one(9), omap_hwmod_check_sysc(9)
• omap_hwmod_init_regbits(9), omap_hwmod_init_reg_offs(9), omap_hwmod_init_sysc_flags(9), omap_hwmod_init_idlemodes(9), omap_hwmod_check_module(9), omap_hwmod_allocate_module(9), omap_hwmod_init_module(9), omap_hwmod_setup_earlycon_flags(9)
• omap_hwmod_setup_all(9), omap_hwmod_enable(9), omap_hwmod_idle(9), omap_hwmod_shutdown(9), omap_hwmod_get_mpu_rt_va(9), omap_hwmod_assert_hardreset(9), omap_hwmod_deassert_hardreset(9), omap_hwmod_for_each_by_class(9), omap_hwmod_set_postsetup_state(9), omap_hwmod_init(9)

fr fr that's the entire list, don't come for me — every single one is there 💀💖

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okay that's the whole page bestie!! huge thank you to the source file ./arch/arm/mach-omap2 and the October 2026 drop for making this moment possible 🎀✨ this has been _update_sysc_cache(9), signing off — periodt 💅