zynqmp_dp_setup(9)

💅 zynqmp_dp_setup — the Kernel API Manual glow-up

ok so bestie, welcome to zynqmp_dp_setup(9) — that's the Kernel API Manual page for it, and no I did not make that name up, it's literally the function. Sit down, sip ur drink, and let's get into it 💖

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✨ NAME ✨

zynqmp_dp_setup — Set up major link parameters 🎀

Like, the major ones. The big-girl parameters. The ones that actually matter for the link.

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🌸 SYNOPSIS 🌸

int zynqmp_dp_setup (struct zynqmp_dp *dp , u8 bw_code , u8 lane_cnt ,
       bool enhanced , bool downspread );

that's the whole signature, character for character, please don't @ me 🫶

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🦋 ARGUMENTS 🦋

• dp — DisplayPort IP core structure 💜 this is the main character honestly
• bw_code — The link bandwidth, expressed as a multiple of 270 MHz ⭐ (yes, as a multiple, it's giving math but make it fashion)
• lane_cnt — The number of lanes to use 🌈 like, how many lanes we're taking on this road trip
• enhanced — Use enhanced framing ✨ fancy framing, we love her
• downspread — Enable spread-spectrum clocking 🎀

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🌟 RETURN 🌟

0 on success, or -errno on failure 😭 (so like, if it's not zero, go read that errno and figure out ur life)

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👑 SEE ALSO 👑

Kernel file ./drivers/gpu/drm/xlnx/zynqmp_dp.c — that's the source of truth bestie 🔥

and the whole friend group:

• struct zynqmp_dp_link_config(9)
• struct zynqmp_dp_mode(9)
• struct zynqmp_dp_config(9)
• enum test_pattern(9)
• struct zynqmp_dp_test(9)
• struct zynqmp_dp_train_set_priv(9)
• struct zynqmp_dp(9)
• zynqmp_dp_phy_init(9)
• zynqmp_dp_phy_exit(9)
• zynqmp_dp_phy_probe(9)
• zynqmp_dp_phy_ready(9)
• zynqmp_dp_max_rate(9)
• zynqmp_dp_mode_configure(9)
• zynqmp_dp_adjust_train(9)
• zynqmp_dp_update_vs_emph(9)
• zynqmp_dp_link_train_cr(9)
• zynqmp_dp_link_train_ce(9)
• zynqmp_dp_train(9)
• zynqmp_dp_train_loop(9)
• zynqmp_dp_aux_cmd_submit(9)
• zynqmp_dp_aux_init(9)
• zynqmp_dp_aux_cleanup(9)
• zynqmp_dp_update_misc(9)
• zynqmp_dp_set_format(9)
• zynqmp_dp_encoder_mode_set_transfer_unit(9)
• zynqmp_dp_encoder_mode_set_stream(9)
• zynqmp_dp_disp_connected_live_layer(9)
• zynqmp_dp_set_test_pattern(9)
• zynqmp_dp_enable_vblank(9)
• zynqmp_dp_disable_vblank(9)

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ngl this page lives in ./drivers/gpu/drm/xlnx and it's dated October 2026 🗓️ — that's the source/version-and-date energy, consider it signed, sealed, and slayed 💅🧚‍♀️ periodt.