drm/radeon: skip async dma init on r6xx
The hw is buggy and it's not currently used, but it's
currently still initialized by the driver. Skip the init.
Skipping init also seems to improve stability with dpm on
some r6xx asics.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=66963
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index a8e3342..dfb5a1d 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -138,7 +138,7 @@
p->ring = R600_RING_TYPE_DMA_INDEX;
else
p->ring = CAYMAN_RING_TYPE_DMA1_INDEX;
- } else if (p->rdev->family >= CHIP_R600) {
+ } else if (p->rdev->family >= CHIP_RV770) {
p->ring = R600_RING_TYPE_DMA_INDEX;
} else {
return -EINVAL;