_init_clkdm(9)

✨ NAME ✨

okay so this is _init_clkdm(9) from the Kernel API Manual, and the name is literally the whole vibe: look up a clockdomain name, store pointer in omap_hwmod. She’s a tiny helper with main character energy, fr fr. 💅

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🛠️ SYNOPSIS 🛠️

int _init_clkdm (struct omap_hwmod *oh );

One function, one argument, zero drama. slay. ✨

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🌸 ARGUMENTS 🌸

• oh — struct omap_hwmod *. This is the struct getting the glow-up: the clockdomain name lives in there, and the matching pointer gets saved right back into it. 🫶

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💖 DESCRIPTION 💖

okay so here’s the tea: _init_clkdm takes a clockdomain name stored in a struct omap_hwmod, converts that name into a clockdomain pointer, and saves the pointer into the struct omap_hwmod. It’s giving matchmaker but for kernel structs, lowkey iconic. ✨

If the clkdm_name lookup fails, it returns -EINVAL. That’s the error path, bestie — not a vibe, but very much documented. 😭

no cap: the lookup failing means -EINVAL, periodt. 💀

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🦋 SEE ALSO 🦋

the whole extended fam is here, no skips, no crumbs. Also the kernel file, because duh:

• 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_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)

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that’s the page, bestie. source/version: ./arch/arm/mach-omap2 · date: October 2026 · page: _init_clkdm(9) · byeee 🫶✨