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authorBen Skeggs <bskeggs@redhat.com>2016-12-13 03:22:53 +0300
committerBen Skeggs <bskeggs@redhat.com>2016-12-13 04:40:16 +0300
commit79d48dadb0a71ec31ec8ce234ad0811a50123580 (patch)
treeb5be0bd8d45f67a2ebce8aff307807fc0cba04f5
parentf4e65efc88b64c1dbca275d42a188edccedb56c6 (diff)
downloadlinux-79d48dadb0a71ec31ec8ce234ad0811a50123580.tar.xz
drm/nouveau/bios/dp: fix handling of LevelEntryTableIndex on DP table 4.2
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/bios/dp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dp.c
index d89e78c4e689..972370ed36f0 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dp.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dp.c
@@ -207,8 +207,11 @@ nvbios_dpcfg_match(struct nvkm_bios *bios, u16 outp, u8 pc, u8 vs, u8 pe,
if (*ver >= 0x30) {
const u8 vsoff[] = { 0, 4, 7, 9 };
idx = (pc * 10) + vsoff[vs] + pe;
- if (*ver >= 0x40 && *hdr >= 0x12)
+ if (*ver >= 0x40 && *ver <= 0x41 && *hdr >= 0x12)
idx += nvbios_rd08(bios, outp + 0x11) * 40;
+ else
+ if (*ver >= 0x42)
+ idx += nvbios_rd08(bios, outp + 0x11) * 10;
} else {
while ((data = nvbios_dpcfg_entry(bios, outp, ++idx,
ver, hdr, cnt, len))) {