of_dev_hwmod_lookup(9)

🌸 NAME 🌸

Bestie, welcome to the of_dev_hwmod_lookup(9) entry in the Kernel API Manual 💖 — this one is literally of_dev_hwmod_lookup — look up needed hwmod from dt blob. No cap, that's the whole NAME vibe.

✨ SYNOPSIS ✨

int of_dev_hwmod_lookup (struct device_node *np , struct omap_hwmod *oh
       , int *index , struct device_node **found );

🎀 ARGUMENTS 🎀

Here's the cast of characters, bestie 🫶:

• np — struct device_node *
• oh — struct omap_hwmod *
• index — index of the entry found
• found — struct device_node * found or NULL

💅 DESCRIPTION 💅

Okay so this icon parses the dt blob and finds out the needed hwmod ✨. A recursive function is implemented to take care of hierarchical dt blob parsing — yes bestie, recursive, because the dt blob is hierarchical and this function handles it 💅.

🔥 RETURN 🔥

Returns 0 on success, -ENODEV when not found 😭.

• 0 — success, slay ✨
• -ENODEV — not found, sad girl hours 💀

🦋 SEE ALSO 🦋

Kernel file bestie alert: ./arch/arm/mach-omap2/omap_hwmod.c 🫶 — and the related-entry group chat is huge, so buckle up:

• 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), 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)

okay that's the whole page, bestie 🫶 — source/version vibes are ./arch/arm/mach-omap2, dated October 2026, and it's the of_dev_hwmod_lookup(9) manual entry. Bye 💖✨