drm_panel_unprepare(9)

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

okay so real talk, this one's a little page but it does something kind of iconic: it's the "bye bye panel" function 💖

✨ NAME ✨

drm_panel_unprepare — power off a panel 🔌💀

✨ SYNOPSIS ✨

void drm_panel_unprepare (struct drm_panel *panel );

✨ ARGUMENTS ✨

• panel — your DRM panel, that's it, that's the whole vibe 🫶

✨ DESCRIPTION ✨

okay so when you call this function it will completely power off a panel — and we mean completely, like it's asserting the panel's reset, turning off power supplies, all of that 💅 ngl it goes kinda feral with the shutdown.

And after this function has completed? 🙈 it is usually no longer possible to communicate with the panel until another call to drm_panel_prepare. so like… it's giving "left on read," she's not talking to you anymore until you prepare her again ✨

bestie pls note: communicate-with-panel-again only happens after another call to drm_panel_prepare, ok? mark it in your notes 📝

✨ SEE ALSO ✨

so many siblings, she's got a whole family tree 🌈:

• Kernel file ./drivers/gpu/drm/drm_panel.c drm panel(9)
• drm_panel_init(9)
• drm_panel_add(9)
• drm_panel_remove(9)
• devm_drm_panel_add(9)
• drm_panel_prepare(9)
• drm_panel_enable(9)
• drm_panel_disable(9)
• drm_panel_get_modes(9)
• drm_panel_get(9)
• drm_panel_put(9)
• drm_panel_put_void(9)
• of_drm_find_panel(9)
• drm_is_panel_follower(9)
• drm_panel_add_follower(9)
• drm_panel_remove_follower(9)
• devm_drm_panel_add_follower(9)
• drm_panel_of_backlight(9)

🎀 and that's the whole page, bestie! this gem lives at ./drivers/gpu/drm and it's dated October 2026 in the Kernel API Manual 💜 slay, go turn off some panels responsibly 🦋💅