ENUM DMUB_PHY_FSM_STATE(9)

🌸 NAME 🌸

enum dmub_phy_fsm_state — the PHY FSM states, bestie. It's the state your PHY FSM is supposed to transit to while PSR gets enabled or disabled. That's the whole gig. 💅

✨ SYNOPSIS ✨

enum dmub_phy_fsm_state {
    DMUB_PHY_FSM_POWER_UP_DEFAULT ,
    DMUB_PHY_FSM_RESET ,
    DMUB_PHY_FSM_RESET_RELEASED ,
    DMUB_PHY_FSM_SRAM_LOAD_DONE ,
    DMUB_PHY_FSM_INITIALIZED ,
    DMUB_PHY_FSM_CALIBRATED ,
    DMUB_PHY_FSM_CALIBRATED_LP ,
    DMUB_PHY_FSM_CALIBRATED_PG ,
    DMUB_PHY_FSM_POWER_DOWN ,
    DMUB_PHY_FSM_PLL_EN ,
    DMUB_PHY_FSM_TX_EN ,
    DMUB_PHY_FSM_TX_EN_TEST_MODE ,
    DMUB_PHY_FSM_FAST_LP ,
    DMUB_PHY_FSM_P2_PLL_OFF_CPM ,
    DMUB_PHY_FSM_P2_PLL_OFF_PG ,
    DMUB_PHY_FSM_P2_PLL_OFF ,
    DMUB_PHY_FSM_P2_PLL_ON

};

🎀 Constants 🎀

okay so, real talk: every single one of these is listed as -- undescribed -- in the source. Not me being lazy, that's genuinely what it says 🙈 so here's the full roster, all seventeen of them, each one keeping its lil "no description yet" energy:

• DMUB_PHY_FSM_POWER_UP_DEFAULT — -- undescribed --
• DMUB_PHY_FSM_RESET — -- undescribed --
• DMUB_PHY_FSM_RESET_RELEASED — -- undescribed --
• DMUB_PHY_FSM_SRAM_LOAD_DONE — -- undescribed --
• DMUB_PHY_FSM_INITIALIZED — -- undescribed --
• DMUB_PHY_FSM_CALIBRATED — -- undescribed --
• DMUB_PHY_FSM_CALIBRATED_LP — -- undescribed --
• DMUB_PHY_FSM_CALIBRATED_PG — -- undescribed --
• DMUB_PHY_FSM_POWER_DOWN — -- undescribed --
• DMUB_PHY_FSM_PLL_EN — -- undescribed --
• DMUB_PHY_FSM_TX_EN — -- undescribed --
• DMUB_PHY_FSM_TX_EN_TEST_MODE — -- undescribed --
• DMUB_PHY_FSM_FAST_LP — -- undescribed --
• DMUB_PHY_FSM_P2_PLL_OFF_CPM — -- undescribed --
• DMUB_PHY_FSM_P2_PLL_OFF_PG — -- undescribed --
• DMUB_PHY_FSM_P2_PLL_OFF — -- undescribed --
• DMUB_PHY_FSM_P2_PLL_ON — -- undescribed --

no cap, that's the entire constants list — seventeen states, zero descriptions. if you were hoping for lore on each one, the source said "not today" 😭

💖 SEE ALSO 💖

Kernel file ./drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h and honestly the whole extended friend group:

• union dmub_addr(9)
• struct dmub_cursor_offload_pipe_data_dcn30_v1(9)
• struct dmub_cursor_offload_pipe_data_dcn401_v1(9)
• struct dmub_cursor_offload_pipe_data_dcn60_v1(9)
• struct dmub_cursor_offload_pipe_data_v1(9)
• struct dmub_cursor_offload_payload_data_v1(9)
• struct dmub_cursor_offload_stream_v1(9)
• struct dmub_cursor_offload_v1(9)
• union dmub_fw_meta_feature_bits(9)
• struct dmub_fw_meta_info(9)
• union dmub_fw_meta(9)
• struct dmcub_trace_buf_entry(9)
• union dmub_fw_boot_status(9)
• enum dmub_fw_boot_status_bit(9)
• enum dmub_cursor_offload_comand_type(9)
• union dmub_fw_boot_options(9)
• enum dmub_shared_state_feature_id(9)
• struct dmub_shared_state_ips_fw(9)
• struct dmub_shared_state_ips_driver(9)
• struct dmub_shared_state_cursor_offload_v1(9)
• struct dmub_shared_state_feature_block(9)
• union dmub_gpint_data_register(9)
• enum dmub_out_cmd_type(9)
• struct dmub_cmd_header(9)
• struct dmub_rb_cmd_common(9)
• struct dmub_cmd_PLAT_54186_wa(9)
• struct dmub_rb_cmd_PLAT_54186_wa(9)
• enum dmub_cmd_mall_type(9)
• struct dmub_rb_cmd_mall(9)
• enum dmub_cmd_cab_type(9)
• struct dmub_rb_cmd_cab_for_ss(9)
• enum dmub_fams2_allow_delay_check_mode(9)
• enum dmub_cmd_idle_opt_type(9)
• struct dmub_rb_cmd_idle_opt_dcn_restore(9)
• struct dmub_dcn_notify_idle_cntl_data(9)
• struct dmub_rb_cmd_idle_opt_dcn_notify_idle(9)
• enum dmub_idle_opt_dc_power_state(9)
• struct dmub_idle_opt_set_dc_power_state_data(9)
• struct dmub_rb_cmd_idle_opt_set_dc_power_state(9)
• struct dmub_clocks(9)
• enum dmub_cmd_clk_mgr_type(9)
• struct dmub_rb_cmd_clk_mgr_notify_clocks(9)
• struct dmub_cmd_digx_encoder_control_data(9)
• struct dmub_rb_cmd_digx_encoder_control(9)
• struct dmub_cmd_set_pixel_clock_data(9)
• struct dmub_cmd_enable_disp_power_gating_data(9)
• struct dmub_rb_cmd_enable_disp_power_gating(9)
• struct dmub_dig_transmitter_control_data_v1_7(9)
• union dmub_cmd_dig1_transmitter_control_data(9)
• struct dmub_rb_cmd_dig1_transmitter_control(9)
• struct dmub_rb_cmd_domain_control_data(9)
• struct dmub_rb_cmd_domain_control(9)
• struct dmub_rb_cmd_dpphy_init(9)
• enum dp_aux_request_action(9)
• enum aux_return_code_type(9)
• enum aux_channel_type(9)
• struct aux_transaction_parameters(9)
• struct dmub_rb_cmd_hpd_sense_notify(9)
• enum dmub_abm_ace_curve_type(9)
• enum dmub_abm_histogram_type(9)
• enum dmub_cmd_panel_cntl_type(9)
• struct dmub_cmd_panel_cntl_data(9)
• struct dmub_rb_cmd_panel_cntl(9)
• struct dmub_cmd_cable_id_input(9)
• struct dmub_cmd_cursor_offload_init_data(9)
• struct dmub_rb_cmd_cursor_offload_init(9)
• struct dmub_cmd_cursor_offload_stream_data(9)
• struct dmub_rb_cmd_cursor_offload_stream_cntl(9)
• union dmub_rb_cmd(9)
• union dmub_rb_out_cmd(9)
• struct dmub_rb_init_params(9)
• struct dmub_rb(9)

🫶 that's the whole page, bestie — go off and read the other seventy-something manpages, iykyk.

source/version: ./drivers/gpu/drm/amd/display/... · date: October 2026 · this was enum dmub_phy_fsm_state(9) from the Kernel API Manual — mwah, take care of your PHY FSM for me 💜✨