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drm/nouveau/bios: add support for dcb 4.1

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-08-18 14:09:00 +10:00
parent c908357786
commit dae2043976
1 changed files with 15 additions and 12 deletions
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27
drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c
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@ -42,7 +42,7 @@ dcb_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
*ver = nv_ro08(bios, dcb);
if (*ver >= 0x41) {
if (*ver >= 0x42) {
nv_warn(bios, "DCB version 0x%02x unknown\n", *ver);
return 0x0000;
} else
@ -157,17 +157,20 @@ dcb_outp_parse(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len,
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;
outp->dpconf.link_nr = (conf & 0x0f000000) >> 24;
if (*ver < 0x41) {
switch (outp->dpconf.link_nr) {
case 0x0f:
outp->dpconf.link_nr = 4;
break;
case 0x03:
outp->dpconf.link_nr = 2;
break;
case 0x01:
default:
outp->dpconf.link_nr = 1;
break;
}
}
/* fall-through... */