drm/radeon/kms: add ARGB2101010 colorbuffer support for r500

This should be part of DRM 2.8.0.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index cde1d3480d93..36b4f7b48d6a 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -787,6 +787,13 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
                 case 15:
                         track->cb[i].cpp = 2;
                         break;
+                case 5:
+                        if (p->rdev->family < CHIP_RV515) {
+                                DRM_ERROR("Invalid color buffer format (%d)!\n",
+                                          ((idx_value >> 21) & 0xF));
+                                return -EINVAL;
+                        }
+                        /* Pass through. */
                 case 6:
                         track->cb[i].cpp = 4;
                         break;