diff options
| author |   Ben Skeggs <bskeggs@redhat.com> | 2021-11-23 18:17:49 +1000 |
|---|---|---|
| committer |   Karol Herbst <kherbst@redhat.com> | 2021-12-16 18:46:09 +0100 |
| commit | be5b6985fbbe6ba9580351b3c9168c84e51bee5c (patch) | |
| tree | af0fff26f1717cc636d31672e370332a248280c1 /drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h | |
| parent | drm/nouveau/disp: remove some remnant of a rework (diff) | |
| download | linux-dev-be5b6985fbbe6ba9580351b3c9168c84e51bee5c.tar.xz linux-dev-be5b6985fbbe6ba9580351b3c9168c84e51bee5c.zip | |
drm/nouveau/disp/dp: explicitly control scrambling when setting pattern
TPS1/2/3 require scrambling to be disabled. The IED scripts on earlier
boards used to handle this, but appear not to anymore.
TPS4 support will also require scrambling to remain enabled.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/17
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h index 7653d80b4076..9ce91f79ca35 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h @@ -49,6 +49,7 @@ void nvkm_dp_disable(struct nvkm_outp *, struct nvkm_ior *); #define DPCD_LC01_LANE_COUNT_SET 0x1f #define DPCD_LC02 0x00102 #define DPCD_LC02_TRAINING_PATTERN_SET 0x03 +#define DPCD_LC02_SCRAMBLING_DISABLE 0x20 #define DPCD_LC03(l) ((l) + 0x00103) #define DPCD_LC03_MAX_PRE_EMPHASIS_REACHED 0x20 #define DPCD_LC03_PRE_EMPHASIS_SET 0x18 |