diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2015-08-21 10:52:54 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2015-08-28 12:40:04 +1000 |
| commit | 7c11c99b3c66a8e03494e56ce6e6c5303ee85934 (patch) | |
| tree | 91544659d7d350259d9c871e09f508e49dd90925 /drivers/gpu/drm/nouveau/nouveau_bios.c | |
| parent | 895fb8e6f77589b9c50ff1f231b5025935d1d59f (diff) | |
| download | op-kernel-dev-7c11c99b3c66a8e03494e56ce6e6c5303ee85934.zip op-kernel-dev-7c11c99b3c66a8e03494e56ce6e6c5303ee85934.tar.gz | |
drm/nouveau/bios/dcb: accept "maxwell" lane count values for dcb 4.0
We previously assumed that the values "2" and "4" were new in DCB 4.1,
however, there's at least one GM107 DCB 4.0 board (Quadro K620) that
uses the newer values.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 0190b69..e9de6e3 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -1481,19 +1481,18 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, entry->dpconf.link_bw = 540000; break; } - entry->dpconf.link_nr = (conf & 0x0f000000) >> 24; - if (dcb->version < 0x41) { - switch (entry->dpconf.link_nr) { - case 0xf: - entry->dpconf.link_nr = 4; - break; - case 0x3: - entry->dpconf.link_nr = 2; - break; - default: - entry->dpconf.link_nr = 1; - break; - } + switch ((conf & 0x0f000000) >> 24) { + case 0xf: + case 0x4: + entry->dpconf.link_nr = 4; + break; + case 0x3: + case 0x2: + entry->dpconf.link_nr = 2; + break; + default: + entry->dpconf.link_nr = 1; + break; } link = entry->dpconf.sor.link; entry->i2c_index += NV_I2C_AUX(0); |
