Merge tag 'dwc3-for-v3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi...

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / exynos / exynos_drm_encoder.c

diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index 86b93dde219a51a3a4e224fa800841ab76dcc92b..ef4754f1519bfbb4334b71c1372cc8d594526bd9 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -195,6 +195,40 @@ static struct drm_encoder_funcs exynos_encoder_funcs = {
        .destroy = exynos_drm_encoder_destroy,
 };
 
+static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder)
+{
+       struct drm_encoder *clone;
+       struct drm_device *dev = encoder->dev;
+       struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+       struct exynos_drm_display_ops *display_ops =
+                               exynos_encoder->manager->display_ops;
+       unsigned int clone_mask = 0;
+       int cnt = 0;
+
+       list_for_each_entry(clone, &dev->mode_config.encoder_list, head) {
+               switch (display_ops->type) {
+               case EXYNOS_DISPLAY_TYPE_LCD:
+               case EXYNOS_DISPLAY_TYPE_HDMI:
+                       clone_mask |= (1 << (cnt++));
+                       break;
+               default:
+                       continue;
+               }
+       }
+
+       return clone_mask;
+}
+
+void exynos_drm_encoder_setup(struct drm_device *dev)
+{
+       struct drm_encoder *encoder;
+
+       DRM_DEBUG_KMS("%s\n", __FILE__);
+
+       list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+               encoder->possible_clones = exynos_drm_encoder_clones(encoder);
+}
+
 struct drm_encoder *
 exynos_drm_encoder_create(struct drm_device *dev,
                           struct exynos_drm_manager *manager,