diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_sor.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_sor.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c index c2fff543b06..0c68698f23d 100644 --- a/drivers/gpu/drm/nouveau/nv50_sor.c +++ b/drivers/gpu/drm/nouveau/nv50_sor.c @@ -211,7 +211,7 @@ nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, mode_ctl = 0x0200; break; case OUTPUT_DP: - mode_ctl |= 0x00050000; + mode_ctl |= (nv_encoder->dp.mc_unknown << 16); if (nv_encoder->dcb->sorconf.link & 1) mode_ctl |= 0x00000800; else @@ -274,6 +274,7 @@ static const struct drm_encoder_funcs nv50_sor_encoder_funcs = { int nv50_sor_create(struct drm_device *dev, struct dcb_entry *entry) { + struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_encoder *nv_encoder = NULL; struct drm_encoder *encoder; bool dum; @@ -319,5 +320,27 @@ nv50_sor_create(struct drm_device *dev, struct dcb_entry *entry) encoder->possible_crtcs = entry->heads; encoder->possible_clones = 0; + if (nv_encoder->dcb->type == OUTPUT_DP) { + uint32_t mc, or = nv_encoder->or; + + if (dev_priv->chipset < 0x90 || + dev_priv->chipset == 0x92 || dev_priv->chipset == 0xa0) + mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_C(or)); + else + mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_C(or)); + + switch ((mc & 0x00000f00) >> 8) { + case 8: + case 9: + nv_encoder->dp.mc_unknown = (mc & 0x000f0000) >> 16; + break; + default: + break; + } + + if (!nv_encoder->dp.mc_unknown) + nv_encoder->dp.mc_unknown = 5; + } + return 0; } |