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We need to call drm_helper_hpd_irq_event() on resume to properly detect monitor connection / disconnection on some laptops. For runtime-resume (which gets called on resume from normal suspend too) we must call drm_helper_hpd_irq_event() from a workqueue to avoid a deadlock. Rename acpi_work to hpd_work, and move it out of the #ifdef CONFIG_ACPI blocks to make it suitable for generic work.

...-off-by: Hans de Goede <hdegoede at redhat.com> > --- > drivers/gpu/drm/nouveau/nouveau_drm.c | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c > index 3100fd88..b564ab8 100644 > --- a/drivers/gpu/drm/nouveau/nouveau_drm.c > +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c > @@ -692,7 +692,12 @@ nouveau_pmops_resume(struct device *dev) > return ret; > pci_set_master(pdev); > > - return nouveau_do_resume(drm_dev, false); > + ret = nouveau_do_...

...s to avoid deadlocks. Signed-off-by: Hans de Goede <hdegoede at redhat.com> --- drivers/gpu/drm/nouveau/nouveau_drm.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 3100fd88..b564ab8 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -692,7 +692,12 @@ nouveau_pmops_resume(struct device *dev) return ret; pci_set_master(pdev); - return nouveau_do_resume(drm_dev, false); + ret = nouveau_do_resume(drm_dev, false); + + /* Monitor...