omap_hwmod_assert_hardreset(9)

💅 omap_hwmod_assert_hardreset ✨

okay bestie, welcome to the Kernel API Manual — this one's a lil' function called omap_hwmod_assert_hardreset, and honestly it does exactly one thing but it does it iconically. Let's get into it 🫶

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🌸 NAME 🌸

omap_hwmod_assert_hardreset — assert the HW reset line of submodules contained in the hwmod module.

Like, you're pulling the reset lever. That's the whole vibe. 🎀

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🦋 SYNOPSIS 🦋

int omap_hwmod_assert_hardreset (struct omap_hwmod *oh , const char
*name );

returns an int, takes two args, no cap. 💜

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✨ ARGUMENTS ✨

• oh — a struct omap_hwmod *. that's the hwmod module you're messing with, main character energy 👑
• name — const char *, the name of the reset line to look up and then assert. yep, you literally tell it which reset line by name. iykyk 💅

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🔥 DESCRIPTION 🔥

So here's the tea 🍓: some IP — like dsp, ipu or iva — contains a processor that requires a HW reset line to be asserted / deasserted in order to enable the IP fully. Like, fully fully. no half-enabling here, periodt.

It returns -EINVAL if oh is null or if the operation is not yet supported on this OMAP. lowkey rude but okay 😭. Otherwise, it just passes along the return value from _assert_hardreset — not me doing zero extra work, just vibing and forwarding the result 🧚

ngl, those two -EINVAL cases are the ones that'll get you: a null oh, or an OMAP where this isn't supported yet. handle it. 🙈

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🌈 SEE ALSO 🌈

This list is long long — but we are not skipping a single one, because every reference ate and left no crumbs 🔥

• Kernel file ./arch/arm/mach-omap2/omap_hwmod.c
• 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), _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_deassert_hardreset(9), omap_hwmod_for_each_by_class(9), omap_hwmod_set_postsetup_state(9), omap_hwmod_init(9)

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and that's the whole page bestie, go assert some reset lines responsibly 💖✨

anyway, this came out of ./arch/arm/mach-omap2 and it's the October 2026 edition of omap_hwmod_assert_hardreset(9) — bye, love u, read ur manpages 🎀💅