drm_bridge_h...r_reset_crtc(9)

💅 drm_bridge_h...r_reset_crtc(9) — from the Kernel API Manual, bestie ✨

okay so picture this: you're deep in the kernel, you've got a bridge, and the pipeline feeding it is being so dramatic. this little function is your bestie who shows up and hits the reset button. 🎀

---

✨ NAME ✨

drm_bridge_helper_reset_crtc — literally just resets the pipeline that's feeding a bridge, no cap 🦋

---

🌸 SYNOPSIS 🌸

int drm_bridge_helper_reset_crtc (struct drm_bridge *bridge , struct
       drm_modeset_acquire_ctx *ctx );

---

🫶 ARGUMENTS 🫶

• bridge — the DRM bridge that's getting reset, she's the main character here 👑
• ctx — the lock acquisition context, aka the vibe check that keeps everything safe while you do this 💅

---

🔥 DESCRIPTION 🔥

so it resets a bridge pipeline. and like, what that means is it power-cycles every active component between the CRTC and the connector that the bridge is connected to. the whole glow-up, top to bottom, everyone gets a fresh start ✨

heads up bestie: it relies on drm_atomic_helper_reset_crtc, so the exact same limitations apply. no extra magic, fr fr 🙈

and the return?! okay so: 0 on success, or a negative error code on failure. but — and this is the important part — if the error returned is EDEADLK, the whole atomic sequence must be restarted. like, the entire thing. no skipping. that's the rule 💀

---

🦋 SEE ALSO 🦋

• Kernel file ./drivers/gpu/drm/drm_bridge_helper.c — go read it, iykyk 📖💜

---

okay that's the whole page! sourced from ./drivers/gpu/drm, dated October 2026, that's the sign-off bestie — go reset some pipelines and slay 🌈⭐💖