The register programmed by the clock method needs to contain a different setting for the link speed as well as special divider settings.
Signed-off-by: Ilia Mirkin imirkin@alum.mit.edu --- drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c | 2 ++ drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h | 5 +++++ drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c | 11 +++++++---- 3 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c index ad5f658c3f6d..9b16a08eb4d9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c @@ -31,4 +31,6 @@ gm200_hdmi_scdc(struct nvkm_ior *ior, int head, u8 scdc) const u32 ctrl = scdc & 0x3;
nvkm_mask(device, 0x61c5bc + hoff, 0x00000003, ctrl); + + ior->tmds.high_speed = !!(scdc & 0x2); } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h index cf640141ad23..e2e0515a178c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h @@ -40,6 +40,11 @@ struct nvkm_ior { u8 nr; u8 bw; } dp; + + /* Armed TMDS state. */ + struct { + bool high_speed; + } tmds; };
struct nvkm_ior_func { diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c index e6e6dfbb1283..456a5a143522 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c @@ -120,13 +120,16 @@ void gf119_sor_clock(struct nvkm_ior *sor) { struct nvkm_device *device = sor->disp->engine.subdev.device; - const int div = sor->asy.link == 3; const u32 soff = nv50_ior_base(sor); + u32 div1 = sor->asy.link == 3; + u32 div2 = sor->asy.link == 3; if (sor->asy.proto == TMDS) { - /* NFI why, but this sets DP_LINK_BW_2_7 when using TMDS. */ - nvkm_mask(device, 0x612300 + soff, 0x007c0000, 0x0a << 18); + const u32 speed = sor->tmds.high_speed ? 0x14 : 0x0a; + nvkm_mask(device, 0x612300 + soff, 0x007c0000, speed << 18); + if (sor->tmds.high_speed) + div2 = 1; } - nvkm_mask(device, 0x612300 + soff, 0x00000707, (div << 8) | div); + nvkm_mask(device, 0x612300 + soff, 0x00000707, (div2 << 8) | div1); }
void