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authorFrancisco Jerez <currojerez@riseup.net>2010-07-04 18:14:42 +0400
committerBen Skeggs <bskeggs@redhat.com>2010-07-13 04:13:20 +0400
commit8ccfe9e098d5975ef65d17de477f6b7dc0c446db (patch)
tree1fe23accc759ac779ee41e048769d8ddadf89ea3 /drivers/gpu/drm/nouveau/nv17_tv.c
parentbe8860ac0c99c4cd67dfc364c6f57d299f8d7e9d (diff)
downloadlinux-8ccfe9e098d5975ef65d17de477f6b7dc0c446db.tar.xz
drm/nv04-nv40: Prevent invalid DAC/TVDAC combinations.
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv17_tv.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv17_tv.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv17_tv.c b/drivers/gpu/drm/nouveau/nv17_tv.c
index 44437ff46394..864867ed951a 100644
--- a/drivers/gpu/drm/nouveau/nv17_tv.c
+++ b/drivers/gpu/drm/nouveau/nv17_tv.c
@@ -125,6 +125,9 @@ nv17_tv_detect(struct drm_encoder *encoder, struct drm_connector *connector)
struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
struct dcb_entry *dcb = tv_enc->base.dcb;
+ if (nv04_dac_in_use(encoder))
+ return connector_status_disconnected;
+
if (dev_priv->chipset == 0x42 ||
dev_priv->chipset == 0x43)
tv_enc->pin_mask = nv42_tv_sample_load(encoder) >> 28 & 0xe;
@@ -296,6 +299,9 @@ static bool nv17_tv_mode_fixup(struct drm_encoder *encoder,
{
struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
+ if (nv04_dac_in_use(encoder))
+ return false;
+
if (tv_norm->kind == CTV_ENC_MODE)
adjusted_mode->clock = tv_norm->ctv_enc_mode.mode.clock;
else