drm/radeon/kms: reprogram format in set base.

This should in theory fix the problem with a mode set being required
for adjusting the color depth.

This also adds in the necessary bits to the format tables for
8-bit, though it doesn't work yet.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index a7edd0f2ac37..6a015929deee 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -488,6 +488,11 @@ int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
         }
 
         switch (crtc->fb->bits_per_pixel) {
+        case 8:
+                fb_format =
+                    AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
+                    AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
+                break;
         case 15:
                 fb_format =
                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |