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_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 6216467..a65ab1a 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1345,6 +1345,7 @@
void
radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_id, uint32_t supported_device)
{
+ struct radeon_device *rdev = dev->dev_private;
struct drm_encoder *encoder;
struct radeon_encoder *radeon_encoder;
@@ -1364,7 +1365,10 @@
return;
encoder = &radeon_encoder->base;
- encoder->possible_crtcs = 0x3;
+ if (rdev->flags & RADEON_SINGLE_CRTC)
+ encoder->possible_crtcs = 0x1;
+ else
+ encoder->possible_crtcs = 0x3;
encoder->possible_clones = 0;
radeon_encoder->enc_priv = NULL;