_idle_sysc(9)

okay so bestie, welcome to _idle_sysc(9) from the Kernel API Manual — it’s giving tiny kernel helper with main-character energy, and we’re gonna read it together 💅✨

💖 NAME 💖

_idle_sysc — try to put a module into idle via OCP_SYSCONFIG.

✨ SYNOPSIS ✨

void _idle_sysc (struct omap_hwmod *oh );

🫶 ARGUMENTS 🫶

• oh — struct omap_hwmod *. That’s the hwmod/module struct you’re passing in, and yes, that’s the whole argument list. Slay.

🦋 DESCRIPTION 🦋

okay so here’s the vibe: if the module is marked as SWSUP_SIDLE, this forces the module into slave idle; otherwise, it configures it for smart-idle. Then, if the module is marked as SWSUP_MSUSPEND, it forces the module into master standby; otherwise, it configures it for smart-standby.

No return value. Like, none. It’s void, bestie — no little return value to catch, periodt.

🎀 SEE ALSO 🎀

Kernel file ./arch/arm/mach-omap2/omap_hwmod.c — and the whole extended friend group is here, no cap:

• struct clkctrl_provider(9)
• struct omap_hwmod_reset(9)
• struct omap_hwmod_soc_ops(9)
• _update_sysc_cache(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)
• _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)

source/version sign-off, bestie: this page lives in ./arch/arm/mach-omap2, it’s dated October 2026, and it’s literally _idle_sysc(9) 🫶💜