diff options
Diffstat (limited to 'drivers/gpu/drm/atmel-hlcdc')
| -rw-r--r-- | drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c index 8db51fb131db..c05c2b744981 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c @@ -78,12 +78,23 @@ static int atmel_hlcdc_attach_endpoint(struct drm_device *dev, int endpoint) int atmel_hlcdc_create_outputs(struct drm_device *dev) { int endpoint, ret = 0; + int attached = 0; - for (endpoint = 0; !ret; endpoint++) + /* + * Always scan the first few endpoints even if we get -ENODEV, + * but keep going after that as long as we keep getting hits. + */ + for (endpoint = 0; !ret || endpoint < 4; endpoint++) { ret = atmel_hlcdc_attach_endpoint(dev, endpoint); + if (ret == -ENODEV) + continue; + if (ret) + break; + attached++; + } /* At least one device was successfully attached.*/ - if (ret == -ENODEV && endpoint) + if (ret == -ENODEV && attached) return 0; return ret; |