diff options
| -rw-r--r-- | drivers/gpu/drm/drm_crtc_helper.c | 24 | ||||
| -rw-r--r-- | include/drm/drm_crtc_helper.h | 2 |
2 files changed, 22 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 205349ea107..eea5e6c4099 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -260,13 +260,27 @@ EXPORT_SYMBOL(drm_helper_crtc_in_use); void drm_helper_disable_unused_functions(struct drm_device *dev) { struct drm_encoder *encoder; + struct drm_connector *connector; struct drm_encoder_helper_funcs *encoder_funcs; struct drm_crtc *crtc; + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + if (!connector->encoder) + continue; + if (connector->status == connector_status_disconnected) + connector->encoder = NULL; + } + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { encoder_funcs = encoder->helper_private; - if (!drm_helper_encoder_in_use(encoder)) - (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF); + if (!drm_helper_encoder_in_use(encoder)) { + if (encoder_funcs->disable) + (*encoder_funcs->disable)(encoder); + else + (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF); + } + /* disconnector encoder from any connector */ + encoder->crtc = NULL; } list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { @@ -411,7 +425,7 @@ static int drm_pick_crtcs(struct drm_device *dev, c = 0; list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - if ((connector->encoder->possible_crtcs & (1 << c)) == 0) { + if ((encoder->possible_crtcs & (1 << c)) == 0) { c++; continue; } @@ -496,8 +510,10 @@ static void drm_setup_crtcs(struct drm_device *dev) mode->name, crtc->base.id); crtc->desired_mode = mode; connector->encoder->crtc = crtc; - } else + } else { connector->encoder->crtc = NULL; + connector->encoder = NULL; + } i++; } diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index e44a4f87303..4c8dacaf4f5 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -79,6 +79,8 @@ struct drm_encoder_helper_funcs { /* detect for DAC style encoders */ enum drm_connector_status (*detect)(struct drm_encoder *encoder, struct drm_connector *connector); + /* disable encoder when not in use - more explicit than dpms off */ + void (*disable)(struct drm_encoder *encoder); }; struct drm_connector_helper_funcs { |