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authorBen Skeggs <bskeggs@redhat.com>2013-02-12 10:16:31 +1000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-02-28 05:38:43 -0800
commita6ce39f8a5c3d15fe49fe632790435edd5f4dc7b (patch)
tree63efdae0f15b743adff8f4c0912e6f881521aead
parentb8c53c85a6bd15bfd67ff19e1d921894be207685 (diff)
drm/nouveau/bios: parse external transmitter type if off-chip
commit f3ed1048715f2edc10c4dda6148b60e93f6282ed upstream. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h1
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c5
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h
index b79025da581..9e54678a172 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/dcb.h
@@ -25,6 +25,7 @@ struct dcb_output {
uint8_t or;
uint8_t link;
bool duallink_possible;
+ uint8_t extdev;
union {
struct sor_conf {
int link;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c
index 0fd87df99dd..73a29da0415 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c
@@ -135,6 +135,9 @@ dcb_outp_parse(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len,
case DCB_OUTPUT_DP:
outp->link = (conf & 0x00000030) >> 4;
outp->sorconf.link = outp->link; /*XXX*/
+ outp->extdev = 0x00;
+ if (outp->location != 0)
+ outp->extdev = (conf & 0x0000ff00) >> 8;
break;
default:
break;
@@ -147,7 +150,7 @@ dcb_outp_parse(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len,
static inline u16
dcb_outp_hasht(struct dcb_output *outp)
{
- return outp->type;
+ return (outp->location << 4) | outp->type;
}
static inline u16