ice_dpll_mode_get(9)

💅 ice_dpll_mode_get(9) — from the Kernel API Manual, bestie ✨

Okay so picture this: you're deep in the ice driver, the DPLL subsystem is doing its whole clock-sync main-character thing, and somebody needs to know what mode this dpll is vibing in. That's this function. It's a callback, it's registered with the dpll subsystem, and it hands back the working mode. Slay.

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🌸 NAME 🌸

ice_dpll_mode_get — get dpll's working mode. That's it. That's the whole gig. 🎀

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✨ SYNOPSIS ✨

int ice_dpll_mode_get (const struct dpll_device *dpll , void *dpll_priv
, enum dpll_mode *mode , struct netlink_ext_ack *extack );

Like, look at her. Four params, one int return, zero notes. Iconic.

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🦋 ARGUMENTS 🦋

• dpll — the registered dpll pointer. This is the dpll, the one that got registered. Not a lookalike, not a cousin. 🫶
• dpll_priv — the private data pointer that was passed on dpll registration. So if you handed it over at registration time, it comes right back to you here. Full circle moment.
• mode — on success this holds the current working mode of the dpll. So yeah, it's an out-param. It's giving "I'll tell you, but only if things went well." 💖
• extack — error reporting. The netlink extended ACK, doing its little messenger thing when stuff goes sideways.

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💜 DESCRIPTION 💜

Dpll subsystem callback. Provides working mode of dpll.

No cap, that's the whole description — it's a callback in the dpll subsystem, and its job is literally to provide the working mode of the dpll. Lowkey the most straightforward function in this entire file. 💅

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🔥 CONTEXT 🔥

Acquires pf->dplls.lock

Heads up bestie: this thing takes that lock. So don't go calling it from somewhere that's already holding it and then act surprised. 😭

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👑 RETURN 👑

• 0 — success. We ate. 🌈
• negative — failure. It's giving "not today." 💀

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🧚 SEE ALSO 🧚

First up, the source file, because you will want to go read it:

./drivers/net/ethernet/intel/ice/ice_dpll.c, plus enum ice_dpll_pin_type(9).

And now the whole extended family — because apparently everyone in ice_dpll.c got an invite to this party and we are NOT leaving anyone out:

ice_dpll_is_sw_pin(9), ice_dpll_is_reset(9), ice_dpll_pin_freq_set(9), ice_dpll_frequency_set(9), ice_dpll_input_frequency_set(9), ice_dpll_output_frequency_set(9), ice_dpll_frequency_get(9), ice_dpll_input_frequency_get(9), ice_dpll_output_frequency_get(9), ice_dpll_sw_pin_frequency_set(9), ice_dpll_sw_pin_frequency_get(9), ice_dpll_pin_enable(9), ice_dpll_pin_disable(9), ice_dpll_pin_store_state(9), ice_dpll_rclk_update_e825c(9), ice_dpll_rclk_update(9), ice_dpll_sw_pins_update(9), ice_dpll_pin_state_update(9), ice_dpll_hw_input_prio_set(9), ice_dpll_lock_status_get(9), ice_dpll_phase_offset_monitor_set(9), ice_dpll_phase_offset_monitor_get(9), ice_dpll_pin_state_set(9), ice_dpll_output_state_set(9), ice_dpll_input_state_set(9), ice_dpll_pin_state_get(9), ice_dpll_output_state_get(9), ice_dpll_input_state_get(9).

Still going, bestie, don't scroll away yet 🫶:

ice_dpll_sw_pin_notify_peer(9), ice_dpll_sma_direction_set(9), ice_dpll_ufl_pin_state_set(9), ice_dpll_sw_pin_state_get(9), ice_dpll_sma_pin_state_set(9), ice_dpll_input_prio_get(9), ice_dpll_input_prio_set(9), ice_dpll_input_direction(9), ice_dpll_output_direction(9), ice_dpll_pin_sma_direction_set(9), ice_dpll_pin_sw_direction_get(9), ice_dpll_pin_phase_adjust_get(9), ice_dpll_pin_phase_adjust_set(9), ice_dpll_input_phase_adjust_set(9), ice_dpll_output_phase_adjust_set(9), ice_dpll_sw_phase_adjust_get(9), ice_dpll_sw_phase_adjust_set(9), ice_dpll_phase_offset_get(9), ice_dpll_synce_update_e825c(9), ice_dpll_output_esync_set(9), ice_dpll_output_esync_get(9), ice_dpll_input_esync_set(9), ice_dpll_input_esync_get(9), ice_dpll_sw_esync_set(9), ice_dpll_sw_esync_get(9), ice_dpll_input_ref_sync_get(9), ice_dpll_sw_input_ref_sync_get(9), ice_dpll_rclk_state_on_pin_set(9), ice_dpll_rclk_state_on_pin_get(9), ice_dpll_txclk_work(9), ice_dpll_txclk_state_on_dpll_set(9), ice_dpll_txclk_state_on_dpll_get(9), ice_generate_clock_id(9), ice_dpll_pin_ntf(9), ice_dpll_notify_changes(9), ice_dpll_is_pps_phase_monitor(9), ice_dpll_pins_notify_mask(9), ice_dpll_pps_update_phase_offsets(9), ice_dpll_update_state(9), ice_dpll_periodic_work(9), ice_dpll_init_ref_sync_inputs(9).

Almost there, I promise 💖:

ice_dpll_release_pins(9), ice_dpll_get_pins(9), ice_dpll_unregister_pins(9), ice_dpll_pin_ref_sync_register(9), ice_dpll_register_pins(9), ice_dpll_deinit_direct_pins(9), ice_dpll_init_direct_pins(9), ice_dpll_deinit_rclk_pin(9), ice_dpll_init_pin_common(9), ice_dpll_init_rclk_pin(9), ice_dpll_deinit_pins(9), ice_dpll_init_fwnode_pins(9), ice_dpll_init_pins_e825(9), ice_dpll_init_pins(9), ice_dpll_deinit_dpll(9), ice_dpll_init_dpll(9), ice_dpll_deinit_worker(9), ice_dpll_init_worker(9), ice_dpll_phase_range_set(9), ice_dpll_init_info_pins_generic(9), ice_dpll_init_info_direct_pins(9), ice_dpll_init_info_pin_on_pin_e825c(9), ice_dpll_init_info_rclk_pin(9), ice_dpll_init_info_sw_pins(9), ice_dpll_init_info_txclk_pins_e825c(9), ice_dpll_init_pins_info(9).

And the init/deinit finale 🎀:

ice_dpll_deinit_info(9), ice_dpll_init_info_e825c(9), ice_dpll_init_info(9), ice_dpll_deinit(9), ice_dpll_init_e825(9), ice_dpll_init_e810(9).

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Okay that's the whole page, no skips, no cuts, iykyk. This little beauty lives in ./drivers/net/ethernet/intel/ice, dated October 2026, and the page itself is ice_dpll_mode_get(9) — go get that mode bestie, you've got this 💅✨