diff options
| author | Ben Skeggs | 2015-12-21 09:27:49 +1000 |
|---|---|---|
| committer | Ben Skeggs | 2016-01-11 11:28:22 +1000 |
| commit | cf0912924fd799028470bb1ccccf4928c1cbc7a9 (patch) | |
| tree | 05c3b41a20c4ace94ff987b9262c7c8ec6cf7f46 | |
| parent | 7d2813c437a094d8df4997ddc55d32f24f832757 (diff) | |
drm/nouveau/bios: parse 8.1 Gbps DP link rate
From DCB 4.1 spec.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c index 8304b806f2a6..a8d5d67feeaf 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c @@ -143,16 +143,19 @@ dcb_outp_parse(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len, switch (outp->type) { case DCB_OUTPUT_DP: switch (conf & 0x00e00000) { - case 0x00000000: + case 0x00000000: /* 1.62 */ outp->dpconf.link_bw = 0x06; break; - case 0x00200000: + case 0x00200000: /* 2.7 */ outp->dpconf.link_bw = 0x0a; break; - case 0x00400000: - default: + case 0x00400000: /* 5.4 */ outp->dpconf.link_bw = 0x14; break; + case 0x00600000: /* 8.1 */ + default: + outp->dpconf.link_bw = 0x1e; + break; } switch ((conf & 0x0f000000) >> 24) { |