diff options
| author | Francisco Jerez <currojerez@riseup.net> | 2010-07-20 16:48:08 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-08-06 08:34:59 +1000 |
| commit | 4a9f822fe1a6ca5de7d8cdd5efbead3b9ab4283b (patch) | |
| tree | 201e0191a1414ff04fe867e2bc6b2dfae8809fe3 /drivers/gpu/drm/nouveau/nouveau_bios.c | |
| parent | d2f4e89254b5816925a207a221e6b26100357eea (diff) | |
drm/nv17-nv4x: Attempt to init some external TMDS transmitters.
sil164 and friends are the most common, usually they just need to be
poked once because a fixed configuration is enough for any modes and
clocks, so they worked without this patch if the BIOS had done a good
job on POST. Display couldn't survive a suspend/resume cycle though.
Unfortunately, BIOS scripts are useless here.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
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 | 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 c608b0b29a3..e86f46cf883 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) |