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authorFrancisco Jerez <currojerez@riseup.net>2010-08-08 21:35:57 +0200
committerBen Skeggs <bskeggs@redhat.com>2010-08-17 11:58:46 +1000
commit4ca2b7120cf8ee266e6c44429ccb541d63480c4a (patch)
treedd0377ea15745a423f1bb880005e36a80c50da3c /drivers/gpu
parent2dc5d2ec0599bd96729f8a9b00d44b56e15d765d (diff)
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drm/nouveau: Don't try DDC on the dummy I2C channel.
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_connector.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index b1b22baf1428..a1473fff06ac 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -104,7 +104,7 @@ nouveau_connector_ddc_detect(struct drm_connector *connector,
int i;
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
- struct nouveau_i2c_chan *i2c;
+ struct nouveau_i2c_chan *i2c = NULL;
struct nouveau_encoder *nv_encoder;
struct drm_mode_object *obj;
int id;
@@ -117,7 +117,9 @@ nouveau_connector_ddc_detect(struct drm_connector *connector,
if (!obj)
continue;
nv_encoder = nouveau_encoder(obj_to_encoder(obj));
- i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
+
+ if (nv_encoder->dcb->i2c_index < 0xf)
+ i2c = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
if (i2c && nouveau_probe_i2c_addr(i2c, 0x50)) {
*pnv_encoder = nv_encoder;