drm/nouveau: support version 0x20 displayport tables

Not entirely identical to 0x21, the per-encoder table header lacks the
third init table pointer.  However, our current parsing of the table
should work just fine.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index bcf843f22b7dd84f802b676800be56d64018643e..71247da17da5cd4e820dbfe953b61f524cce52c4 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -3726,7 +3726,7 @@ nouveau_bios_dp_table(struct drm_device *dev, struct dcb_entry *dcbent,
        }
        table = &bios->data[bios->display.dp_table_ptr];
 
-       if (table[0] != 0x21) {
+       if (table[0] != 0x20 && table[0] != 0x21) {
                NV_ERROR(dev, "DisplayPort table version 0x%02x unknown\n",
                         table[0]);
                return NULL;