diff options
| author | Vasily Khoruzhick <anarsoul@gmail.com> | 2024-06-07 15:09:32 -0700 |
|---|---|---|
| committer | Danilo Krummrich <dakr@redhat.com> | 2024-06-11 12:04:59 +0200 |
| commit | b96a225377b6602299a03d2ce3c289b68cd41bb7 (patch) | |
| tree | 166b264a2f8e119f98f9c3b64a6208254fed60e6 /drivers/gpu/drm/nouveau/dispnv04 | |
| parent | 31849bf07e0fb3e7d050c086b77ebdb6cec89167 (diff) | |
drm/nouveau: don't attempt to schedule hpd_work on headless cards
If the card doesn't have display hardware, hpd_work and hpd_lock are
left uninitialized which causes BUG when attempting to schedule hpd_work
on runtime PM resume.
Fix it by adding headless flag to DRM and skip any hpd if it's set.
Fixes: ae1aadb1eb8d ("nouveau: don't fail driver load if no display hw present.")
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/337
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Ben Skeggs <bskeggs@nvidia.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240607221032.25918-1-anarsoul@gmail.com
Diffstat (limited to 'drivers/gpu/drm/nouveau/dispnv04')
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv04/disp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c index 13705c5f1497..4b7497a8755c 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv04/disp.c @@ -68,7 +68,7 @@ nv04_display_fini(struct drm_device *dev, bool runtime, bool suspend) if (nv_two_heads(dev)) NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); - if (!runtime) + if (!runtime && !drm->headless) cancel_work_sync(&drm->hpd_work); if (!suspend) |