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drm/nouveau: construct a connector table for cards that lack a real one

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-02-24 11:53:59 +10:00
parent f66fa771d5
commit dc5bc4ed38
1 changed files with 16 additions and 13 deletions
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29
drivers/gpu/drm/nouveau/nouveau_bios.c
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@ -5754,7 +5754,7 @@ static void
fixup_legacy_connector(struct nvbios *bios)
{
struct dcb_table *dcb = &bios->dcb;
int high = 0, i;
int i, i2c, i2c_conn[DCB_MAX_NUM_I2C_ENTRIES] = { };
/*
* DCB 3.0 also has the table in most cases, but there are some cards
@ -5765,6 +5765,8 @@ fixup_legacy_connector(struct nvbios *bios)
if (dcb->version >= 0x40)
return;
dcb->connector.entries = 0;
/*
* No known connector info before v3.0, so make it up. the rule here
* is: anything on the same i2c bus is considered to be on the same
@ -5772,30 +5774,31 @@ fixup_legacy_connector(struct nvbios *bios)
* its own unique connector index.
*/
for (i = 0; i < dcb->entries; i++) {
if (dcb->entry[i].i2c_index == 0xf)
continue;
/*
* Ignore the I2C index for on-chip TV-out, as there
* are cards with bogus values (nv31m in bug 23212),
* and it's otherwise useless.
*/
if (dcb->entry[i].type == OUTPUT_TV &&
dcb->entry[i].location == DCB_LOC_ON_CHIP) {
dcb->entry[i].location == DCB_LOC_ON_CHIP)
dcb->entry[i].i2c_index = 0xf;
i2c = dcb->entry[i].i2c_index;
if (i2c_conn[i2c]) {
dcb->entry[i].connector = i2c_conn[i2c] - 1;
continue;
}
dcb->entry[i].connector = dcb->entry[i].i2c_index;
if (dcb->entry[i].connector > high)
high = dcb->entry[i].connector;
dcb->entry[i].connector = dcb->connector.entries++;
if (i2c != 0xf)
i2c_conn[i2c] = dcb->connector.entries;
}
for (i = 0; i < dcb->entries; i++) {
if (dcb->entry[i].i2c_index != 0xf)
continue;
dcb->entry[i].connector = ++high;
/* Fake the connector table as well as just connector indices */
for (i = 0; i < dcb->connector.entries; i++) {
dcb->connector.entry[i].index = i;
dcb->connector.entry[i].type = divine_connector_type(bios, i);
dcb->connector.entry[i].gpio_tag = 0xff;
}
}