drm: Set connector DPMS status to ON in drm_crtc_helper_set_config

When setting a new crtc configuration, force the DPMS state of all
connectors to ON. Otherwise, they'll be left at OFF and a future mode set
that disables the specified connector will not turn the connector off.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index f7af91c..232ee93 100644 (file)
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -471,6 +471,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
        int count = 0, ro, fail = 0;
        struct drm_crtc_helper_funcs *crtc_funcs;
        int ret = 0;
+       int i;
 
        DRM_DEBUG_KMS("\n");
 
@@ -666,6 +667,12 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                if (ret != 0)
                        goto fail;
        }
+       DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
+       for (i = 0; i < set->num_connectors; i++) {
+               DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
+                             drm_get_connector_name(set->connectors[i]));
+               set->connectors[i]->dpms = DRM_MODE_DPMS_ON;
+       }
 
        kfree(save_connectors);
        kfree(save_encoders);