zynqmp_pm_set_pll_frac_data(9)

💖 zynqmp_pm_set_pll_frac_data(9) 💖

okay so bestie, welcome to the Kernel API Manual page for zynqmp_pm_set_pll_frac_data — yes, that's the whole title vibe, and we're getting into it. This is the PM API for setting pll fraction data, and it's giving very specific-clock-business energy. ✨

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🌸 NAME 🌸

zynqmp_pm_set_pll_frac_data — PM API for setting pll fraction data 💅

✨ SYNOPSIS ✨

int zynqmp_pm_set_pll_frac_data (u32 clk_id , u32 data );

🎀 ARGUMENTS 🎀

• clk_id (u32) — PLL clock ID 🕰️
• data (u32) — fraction data 🍓

💅 DESCRIPTION 💅

Okay so this function sets fraction data. Literally that's the job. It is valid for fraction mode only — so keep that in mind, bestie; fraction mode is the whole vibe check here. 🦋

tiny vibe check: it is valid for fraction mode only, no cap.

🫶 RETURN 🫶

Returns status, either success or error+reason. So yeah, you get a status back, and if it's not success, there's a reason attached. No cap. 😭

🦋 SEE ALSO 🦋

Here's the whole friend group — every single reference, no skipped besties:

• Kernel file ./drivers/firmware/xilinx/zynqmp.c
• 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_enable(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)
• zynqmp_pm_set_pll_frac_mode(9)
• zynqmp_pm_get_pll_frac_mode(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)

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okay that's the whole page, bestie — source/version line is ./drivers/firmware/xilinx, date is October 2026, and the manual page is zynqmp_pm_set_pll_frac_data(9). mwah 💋✨