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Commit fba67528 authored by Francisco Jerez's avatar Francisco Jerez Committed by Ben Skeggs
Browse files

drm/nouveau: Fix TMDS on some DCB1.5 boards. 



The TMDS output of an nv11 was being detected as LVDS, because it uses
DCB type 2 for TMDS instead of type 4.

Reported-by: default avatarBertrand VIEILLE <Vieille.Bertrand@free.fr>
Signed-off-by: default avatarFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent d31e078d

drivers/gpu/drm/nouveau/nouveau_bios.c

+6 −14
Original line number Diff line number Diff line
@@ -6166,23 +6166,15 @@ parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb, 
		entry->type = OUTPUT_TV;

		break;

	case 2:

	case 3:

		entry->type = OUTPUT_LVDS;

		break;

	case 4:

		switch ((conn & 0x000000f0) >> 4) {

		case 0:

		if (conn & 0x10)

			entry->type = OUTPUT_LVDS;

		else

			entry->type = OUTPUT_TMDS;

		break;

		case 1:

	case 3:

		entry->type = OUTPUT_LVDS;

		break;

		default:

			NV_ERROR(dev, "Unknown DCB subtype 4/%d\n",

				 (conn & 0x000000f0) >> 4);

			return false;

		}

		break;

	default:

		NV_ERROR(dev, "Unknown DCB type %d\n", conn & 0x0000000f);

		return false;