zynqmp_pm_clock_enable(9)

💅 zynqmp_pm_clock_enable(9) — like, the kernel API manual, bestie

okay so this is a page from the Kernel API Manual and it's about one single function, zynqmp_pm_clock_enable. yes she's one of those pages. tiny. but honestly? iconic. let's get into it 🎀

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✨ NAME ✨

zynqmp_pm_clock_enable — literally just enable the clock for a given id. that's the whole vibe. 💖

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🌸 SYNOPSIS 🌸

int zynqmp_pm_clock_enable (u32 clock_id );

she takes one arg and hands you back an int. no cap. ✨

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🦋 ARGUMENTS 🦋

• clock_id — the ID of the clock you want to enable. like, which clock. that one. 💅

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💜 DESCRIPTION 💜

so this function is what a master calls when it wants to enable a clock — and yes that includes peripheral clocks and PLL clocks. the way that it just… turns things on. obsessed. 🫶

heads up: nothing here about how it's done — that's not this page's business. this page just says "master enables the clock, including peripherals and PLLs" and leaves. main character energy honestly. 👑

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🔥 RETURN 🔥

it returns a status — either success, or error plus a reason. so if it goes wrong you're not just left guessing, you get the reason too. we love an informative king. 😭

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🌈 SEE ALSO 🌈

okay this part is long long. the kernel file is ./drivers/firmware/xilinx/zynqmp.c and here's everyone else invited to the group chat:

• struct zynqmp_devinfo(9), struct pm_api_feature_data(9), zynqmp_pm_ret_code(9), do_fw_call_smc(9), do_fw_call_hvc(9), zynqmp_pm_feature(9), zynqmp_pm_is_function_supported(9), zynqmp_pm_invoke_fw_fn(9), zynqmp_pm_invoke_fn(9)
• zynqmp_pm_get_api_version(9), zynqmp_pm_get_chipid(9), zynqmp_pm_get_family_info(9), zynqmp_pm_get_sip_svc_version(9), zynqmp_pm_get_trustzone_version(9), get_set_conduit_method(9), zynqmp_pm_query_data(9)
• zynqmp_pm_clock_disable(9), zynqmp_pm_clock_getstate(9), zynqmp_pm_clock_setdivider(9), zynqmp_pm_clock_getdivider(9), zynqmp_pm_clock_setparent(9), zynqmp_pm_clock_getparent(9) — clock girlies, the whole squad 💅
• zynqmp_pm_set_pll_frac_mode(9), zynqmp_pm_get_pll_frac_mode(9), zynqmp_pm_set_pll_frac_data(9), zynqmp_pm_get_pll_frac_data(9)
• zynqmp_pm_set_sd_tapdelay(9), zynqmp_pm_sd_dll_reset(9), zynqmp_pm_ospi_mux_select(9)
• zynqmp_pm_write_ggs(9), zynqmp_pm_read_ggs(9), zynqmp_pm_write_pggs(9), zynqmp_pm_read_pggs(9), zynqmp_pm_set_boot_health_status(9)
• zynqmp_pm_reset_assert(9), zynqmp_pm_reset_get_status(9)
• zynqmp_pm_fpga_load(9), zynqmp_pm_fpga_get_status(9), zynqmp_pm_fpga_get_config_status(9)
• zynqmp_pm_pinctrl_request(9), zynqmp_pm_pinctrl_release(9), zynqmp_pm_pinctrl_set_function(9), zynqmp_pm_pinctrl_get_config(9), zynqmp_pm_pinctrl_set_config(9)
• zynqmp_pm_bootmode_read(9), zynqmp_pm_bootmode_write(9), zynqmp_pm_init_finalize(9), zynqmp_pm_set_suspend_mode(9)
• zynqmp_pm_request_node(9), zynqmp_pm_release_node(9), zynqmp_pm_get_rpu_mode(9), zynqmp_pm_set_rpu_mode(9), zynqmp_pm_set_tcm_config(9), zynqmp_pm_get_node_status(9), zynqmp_pm_get_rpu_node_status(9)
• zynqmp_pm_force_pwrdwn(9), zynqmp_pm_request_wake(9), zynqmp_pm_start_rpu(9), zynqmp_pm_stop_rpu(9), zynqmp_pm_set_requirement(9)
• zynqmp_pm_load_pdi(9), zynqmp_pm_efuse_access(9), zynqmp_pm_register_notifier(9), zynqmp_pm_system_shutdown(9), zynqmp_pm_set_feature_config(9), zynqmp_pm_get_feature_config(9)
• zynqmp_pm_sec_read_reg(9), zynqmp_pm_sec_mask_write_reg(9), zynqmp_pm_set_sd_config(9), zynqmp_pm_set_gem_config(9)
• struct zynqmp_pm_shutdown_scope(9), zynqmp_pm_is_shutdown_scope_valid(9), zynqmp_clear_pm_state(9)

like I said. everybody's here. it's giving family reunion 🧚

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and that's the whole page bestie 💖 go enable a clock, you got this ✨

this lil masterpiece lives in ./drivers/firmware/xilinx, dated October 2026 — mwah, sending you off with a kiss 🎀💜