drm/nouveau/disp/dp: fix tmds passthrough on dp connector
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
index b998040..48aa38a 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
@@ -962,7 +962,7 @@
return NULL;
}
-static bool
+static struct nvkm_output *
exec_script(struct nv50_disp_priv *priv, int head, int id)
{
struct nouveau_bios *bios = nouveau_bios(priv);
@@ -979,7 +979,7 @@
}
if (or == 8)
- return false;
+ return NULL;
outp = exec_lookup(priv, head, or, ctrl, &data, &ver, &hdr, &cnt, &len, &info);
if (outp) {
@@ -992,10 +992,10 @@
.execute = 1,
};
- return nvbios_exec(&init) == 0;
+ nvbios_exec(&init);
}
- return false;
+ return outp;
}
static struct nvkm_output *
@@ -1069,7 +1069,23 @@
static void
nvd0_disp_intr_unk2_0(struct nv50_disp_priv *priv, int head)
{
- exec_script(priv, head, 2);
+ struct nvkm_output *outp = exec_script(priv, head, 2);
+
+ /* see note in nv50_disp_intr_unk20_0() */
+ if (outp && outp->info.type == DCB_OUTPUT_DP) {
+ struct nvkm_output_dp *outpdp = (void *)outp;
+ struct nvbios_init init = {
+ .subdev = nv_subdev(priv),
+ .bios = nouveau_bios(priv),
+ .outp = &outp->info,
+ .crtc = head,
+ .offset = outpdp->info.script[4],
+ .execute = 1,
+ };
+
+ nvbios_exec(&init);
+ atomic_set(&outpdp->lt.done, 0);
+ }
}
static void