intel_update_max_cdclk(9)

🦋 NAME 🦋

okay so you're looking at intel_update_max_cdclk(9) from the Kernel API Manual, and bestie, this page is about intel_update_max_cdclk — determine the maximum support CDCLK frequency. periodt. 💅

✨ SYNOPSIS ✨

the signature is literally right here, no cap:

void intel_update_max_cdclk (struct intel_display *display );

🎀 ARGUMENTS 🎀

• display — the display instance. that's the whole argument, and it's giving main character energy. 🫶

🔥 DESCRIPTION 🔥

so here's the vibe check: this function determines the maximum CDCLK frequency the platform supports, and also derives the maximum dot clock frequency the maximum CDCLK frequency allows. literally both things, bestie. 🔥

no hidden side quest, no extra lore — it figures out the max CDCLK support and then derives the max dot clock that max CDCLK can allow. slay. ✨

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/i915/display/intel_cdclk.c — plus CDCLK / RAWCLK(9), iykyk 📁
• intel_cdclk_init_hw(9)
• intel_cdclk_uninit_hw(9)
• intel_cdclk_clock_changed(9)
• intel_cdclk_can_cd2x_update(9)
• intel_cdclk_changed(9)
• intel_set_cdclk_pre_plane_update(9)
• intel_set_cdclk_post_plane_update(9)
• intel_update_cdclk(9)
• intel_read_rawclk(9)
• intel_init_cdclk_hooks(9)

and that's the whole page, bestie 🫶 cute sign-off: this one lives under ./drivers/gpu/drm/i915/display, dated October 2026, and the title is still intel_update_max_cdclk(9) — footer energy: immaculate 💖