diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index c608b0b..e86f46c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -5982,7 +5982,13 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, } break; case OUTPUT_TMDS: - entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; + if (dcb->version >= 0x22) + entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4; + else if (dcb->version >= 0x30) + entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8; + else if (dcb->version >= 0x40) + entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; + break; case 0xe: /* weird g80 mobile type that "nv" treats as a terminator */ @@ -6272,6 +6278,19 @@ parse_dcb_table(struct drm_device *dev, struct nvbios *bios, bool twoHeads) dcb->i2c_table = &bios->data[i2ctabptr]; if (dcb->version >= 0x30) dcb->i2c_default_indices = dcb->i2c_table[4]; + + /* + * Parse the "management" I2C bus, used for hardware + * monitoring and some external TMDS transmitters. + */ + if (dcb->version >= 0x22) { + int idx = (dcb->version >= 0x40 ? + dcb->i2c_default_indices & 0xf : + 2); + + read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table, + idx, &dcb->i2c[idx]); + } } if (entries > DCB_MAX_NUM_ENTRIES) |