drm/radeon/kms: respect single crtc cards, only create one crtc. (v2)
Also add single crtc for RN50 chips.
changes in v2:
fix vblank init to respect single crtc flag
fix r100 mode bandwidth to respect single crtc flag
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 1841145..8e0a875 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -83,8 +83,12 @@
int radeon_irq_kms_init(struct radeon_device *rdev)
{
int r = 0;
+ int num_crtc = 2;
- r = drm_vblank_init(rdev->ddev, 2);
+ if (rdev->flags & RADEON_SINGLE_CRTC)
+ num_crtc = 1;
+
+ r = drm_vblank_init(rdev->ddev, num_crtc);
if (r) {
return r;
}