amdgpu_max_hdmi_pixel_clock(9)

💅 amdgpu_max_hdmi_pixel_clock(9) — Kernel API Manual, section 9 🎀

okay so bestie, welcome to a very specific little corner of the kernel ✨ this one lives in the amdgpu driver and it's basically the function that tells you "hey, how fast can we push pixels over HDMI before things get ugly?" 🖥️💨

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✨ NAME ✨

amdgpu_max_hdmi_pixel_clock — lowkey just returns the max supported HDMI (TMDS) pixel clock 🫶 no cap, that's the whole gig.

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🌸 SYNOPSIS 🌸

int amdgpu_max_hdmi_pixel_clock (const struct amdgpu_device *adev );

like, yes, that's literally it. one argument. she's simple. she's iconic. 💅

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🦋 ARGUMENTS 🦋

• adev — pointer to amdgpu_device 💖 that's your device struct, the main character of this whole story. she gets passed in as a const pointer too, so we're reading from her, not messing with her vibe 🌈

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👑 RETURN 👑

returns the maximum supported HDMI (TMDS) pixel clock in KHz 🔥 that's kilohertz, bestie — not megahertz, not "whatever vibes" — KHz, periodt. ⭐

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🎀 SEE ALSO 🎀

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c 📁 — go read the source if you want the full lore, iykyk
• amdgpu_connector_dvi_mode_valid(9) 👀 — her sibling function, also doing connector validation things, also slaying in her own way

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💀 friendly little reminder: this page is documentation for kernel devs, so don't go passing some random pointer as adev and acting surprised when the kernel has feelings about it 🙈

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and that's the tea, bestie 🍓 this lil page came out of ./drivers/gpu/drm/amd/amdgpu 💜 dated October 2026, filed under amdgpu_max_hdmi_pixel_clock(9) — go forth and clock those pixels responsibly 🧚‍♀️✨💖