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| author | Ben Skeggs <bskeggs@redhat.com> | 2017-08-10 11:32:18 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-08-10 11:39:18 +1000 |
| commit | 372aa73e20197d463fc8b34524c20b089a98b1c3 (patch) | |
| tree | c4f816a63e6f6e4868c21e3212d2cef76a0068cf /drivers/gpu | |
| parent | 38bcb208f60924a031b9f809f7cd252ea4a94e5f (diff) | |
| download | lwn-372aa73e20197d463fc8b34524c20b089a98b1c3.tar.gz lwn-372aa73e20197d463fc8b34524c20b089a98b1c3.zip | |
drm/nouveau/disp/nv04: avoid creation of output paths
Fixes hitting WARN_ON() during initialisation of pre-NV50 GPUs, caused
by the recent changes to support pad macro routing on GM20x.
We currently don't use them here for older GPUs anyway.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c index c7c84d34d97e..88582af8bd89 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c @@ -267,6 +267,8 @@ nvkm_disp_oneinit(struct nvkm_engine *engine) /* Create output path objects for each VBIOS display path. */ i = -1; while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) { + if (ver < 0x40) /* No support for chipsets prior to NV50. */ + break; if (dcbE.type == DCB_OUTPUT_UNUSED) continue; if (dcbE.type == DCB_OUTPUT_EOL) |