diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 7b7b1e27ed0b..8fc2ba164ef2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -5809,7 +5809,7 @@ parse_dcb_gpio_table(struct nvbios *bios) entries = gpio[2]; recordlen = gpio[3]; } else - if (dcb[0] >= 0x22) { + if (dcb[0] >= 0x22 && dcb[-1] >= 0x13) { gpio = ROMPTR(bios, dcb[-15]); if (!gpio) goto no_table; @@ -5817,6 +5817,19 @@ parse_dcb_gpio_table(struct nvbios *bios) headerlen = 3; entries = gpio[2]; recordlen = gpio[1]; + } else + if (dcb[0] >= 0x22) { + /* No GPIO table present, parse the TVDAC GPIO data. */ + uint8_t *tvdac_gpio = &dcb[-5]; + + if (tvdac_gpio[0] & 1) { + e = new_gpio_entry(bios); + e->tag = DCB_GPIO_TVDAC0; + e->line = tvdac_gpio[1] >> 4; + e->invert = tvdac_gpio[0] & 2; + } + + goto no_table; } else { NV_DEBUG(dev, "no/unknown gpio table on DCB 0x%02x\n", dcb[0]); goto no_table; |