drm/nouveau: match U/DP script against SOR link
It appears version 0x21 'U' and 'd' tables require us to take the SOR link
into account when selecting the appropriate table for a particular output.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 9ba2dea..47a27a4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -3920,7 +3920,8 @@
static uint8_t *
bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent,
- uint16_t record, int record_len, int record_nr)
+ uint16_t record, int record_len, int record_nr,
+ bool match_link)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nvbios *bios = &dev_priv->vbios;
@@ -3928,12 +3929,28 @@
uint16_t table;
int i, v;
+ switch (dcbent->type) {
+ case OUTPUT_TMDS:
+ case OUTPUT_LVDS:
+ case OUTPUT_DP:
+ break;
+ default:
+ match_link = false;
+ break;
+ }
+
for (i = 0; i < record_nr; i++, record += record_len) {
table = ROM16(bios->data[record]);
if (!table)
continue;
entry = ROM32(bios->data[table]);
+ if (match_link) {
+ v = (entry & 0x00c00000) >> 22;
+ if (!(v & dcbent->sorconf.link))
+ continue;
+ }
+
v = (entry & 0x000f0000) >> 16;
if (!(v & dcbent->or))
continue;
@@ -3975,7 +3992,7 @@
*length = table[4];
return bios_output_config_match(dev, dcbent,
bios->display.dp_table_ptr + table[1],
- table[2], table[3]);
+ table[2], table[3], table[0] >= 0x21);
}
int
@@ -4064,7 +4081,7 @@
dcbent->type, dcbent->location, dcbent->or);
otable = bios_output_config_match(dev, dcbent, table[1] +
bios->display.script_table_ptr,
- table[2], table[3]);
+ table[2], table[3], table[0] >= 0x21);
if (!otable) {
NV_ERROR(dev, "Couldn't find matching output script table\n");
return 1;