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Commit c674844b authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nvd0/disp: fix dcb sor link matching in supervisor handler 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 6e83fda2

drivers/gpu/drm/nouveau/nvd0_display.c

+9 −8
Original line number Diff line number Diff line
@@ -1567,19 +1567,19 @@ static struct dcb_entry * 
lookup_dcb(struct drm_device *dev, int id, u32 mc)

{

	struct drm_nouveau_private *dev_priv = dev->dev_private;

	int type, or, i;

	int type, or, i, link = -1;



	if (id < 4) {

		type = OUTPUT_ANALOG;

		or   = id;

	} else {

		switch (mc & 0x00000f00) {

		case 0x00000000: type = OUTPUT_LVDS; break;

		case 0x00000100: type = OUTPUT_TMDS; break;

		case 0x00000200: type = OUTPUT_TMDS; break;

		case 0x00000500: type = OUTPUT_TMDS; break;

		case 0x00000800: type = OUTPUT_DP; break;

		case 0x00000900: type = OUTPUT_DP; break;

		case 0x00000000: link = 0; type = OUTPUT_LVDS; break;

		case 0x00000100: link = 0; type = OUTPUT_TMDS; break;

		case 0x00000200: link = 1; type = OUTPUT_TMDS; break;

		case 0x00000500: link = 0; type = OUTPUT_TMDS; break;

		case 0x00000800: link = 0; type = OUTPUT_DP; break;

		case 0x00000900: link = 1; type = OUTPUT_DP; break;

		default:

			NV_ERROR(dev, "PDISP: unknown SOR mc 0x%08x\n", mc);

			return NULL;
@@ -1590,7 +1590,8 @@ lookup_dcb(struct drm_device *dev, int id, u32 mc) 


	for (i = 0; i < dev_priv->vbios.dcb.entries; i++) {

		struct dcb_entry *dcb = &dev_priv->vbios.dcb.entry[i];

		if (dcb->type == type && (dcb->or & (1 << or)))

		if (dcb->type == type && (dcb->or & (1 << or)) &&

		    (link < 0 || link == !(dcb->sorconf.link & 1)))

			return dcb;

	}