drm_kunit_he...tc_connector(9)

✨ drm_kunit_he...tc_connector ✨

okay so bestie, this one lives in the Kernel API Manual (yes, the whole kernel, it's a lot, we love that for it) 💅

---

🌸 NAME 🌸

drm_kunit_helper_enable_crtc_connector — literally just enables a CRTC -> Connector output. that's the whole vibe ✨

---

🎀 SYNOPSIS 🎀

int drm_kunit_helper_enable_crtc_connector (struct kunit *test , struct
drm_device *drm , struct drm_crtc *crtc , struct drm_connector
*connector , const struct drm_display_mode *mode , struct
drm_modeset_acquire_ctx *ctx );

like yeah, six arguments, she's high-maintenance but she delivers 🫶

---

🦋 ARGUMENTS 🦋

• test — the test context object, aka the main character of this whole operation 👑
• drm — the device to alloc the plane for, no big deal, just the entire DRM device 😭
• crtc — the CRTC you're enabling 💖
• connector — the Connector you're enabling, they come as a pair, iykyk 🔥
• mode — the display mode to configure the CRTC with ⭐
• ctx — locking context, pls respect her 🙈

---

💜 DESCRIPTION 💜

so the way this works: drm_kunit_helper_enable_crtc_connector creates an atomic update that enables the route from crtc to connector, with the given mode. like it's literally building the whole path, no cap 🧚

⚠️ and here's the part where you gotta pay attention bestie: you get a pointer to the new CRTC, or an ERR_PTR otherwise. and if the error returned is EDEADLK, the entire atomic sequence must be restarted. like fully restart it. no shortcuts, fr fr 💀

---

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/tests/drm_kunit_helpers.c
• drm_kunit_helper_alloc_device(9)
• drm_kunit_helper_free_device(9)
• drm_kunit_helper_atomic_state_alloc(9)
• drm_kunit_helper_create_primary_plane(9)
• drm_kunit_helper_create_crtc(9)
• drm_kunit_add_mode_destroy_action(9)
• drm_kunit_display_mode_from_cea_vic(9)

all her friends, go say hi, they ate 🍓

---

and that's the page!! sign-off time: this lil beauty comes from ./drivers/gpu/drm/tests, dated October 2026, and the page is drm_kunit_he...tc_connector(9) just in case you forgot where you were 💖 slay, go write some kunit tests, ily 🎀

<!--chunk:9-->