[PATCH 07/10] drm/nouveau: Implement vga_switcheroo_client_ops.pre_switch

[Thomas Zimmermann <tzimmermann@suse.de>]

Call drm_client_dev_acquire_outputs() from vga_switcheroo's pre_switch
callback. Pushes fbcon updates from vga_switcheroo into DRM's fbdev
emulation.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/nouveau/nouveau_vga.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
index a6c375a24154..2d2d08be8fbe 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
@@ -76,11 +76,20 @@ nouveau_switcheroo_can_switch(struct pci_dev *pdev)
 	return atomic_read(&drm->dev->open_count) == 0;
 }
 
+static void
+nouveau_switcheroo_pre_switch(struct pci_dev *pdev)
+{
+	struct nouveau_drm *drm = pci_get_drvdata(pdev);
+
+	drm_client_dev_acquire_outputs(drm->dev);
+}
+
 static const struct vga_switcheroo_client_ops
 nouveau_switcheroo_ops = {
 	.set_gpu_state = nouveau_switcheroo_set_state,
 	.reprobe = nouveau_switcheroo_reprobe,
 	.can_switch = nouveau_switcheroo_can_switch,
+	.pre_switch = nouveau_switcheroo_pre_switch,
 };
 
 void
-- 
2.54.0