diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c index 2d9b9d7a7992..88606bfaf847 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c @@ -142,9 +142,36 @@ dcb_outp_parse(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len, if (*ver >= 0x40) { u32 conf = nv_ro32(bios, dcb + 0x04); switch (outp->type) { + case DCB_OUTPUT_DP: + switch (conf & 0x00e00000) { + case 0x00000000: + outp->dpconf.link_bw = 0x06; + break; + case 0x00200000: + outp->dpconf.link_bw = 0x0a; + break; + case 0x00400000: + default: + outp->dpconf.link_bw = 0x14; + break; + } + + switch (conf & 0x0f000000) { + case 0x0f000000: + outp->dpconf.link_nr = 4; + break; + case 0x03000000: + outp->dpconf.link_nr = 2; + break; + case 0x01000000: + default: + outp->dpconf.link_nr = 1; + break; + } + + /* fall-through... */ case DCB_OUTPUT_TMDS: case DCB_OUTPUT_LVDS: - case DCB_OUTPUT_DP: outp->link = (conf & 0x00000030) >> 4; outp->sorconf.link = outp->link; /*XXX*/ outp->extdev = 0x00; |