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path: root/drivers/gpu/drm/vkms/vkms_output.c
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Diffstat (limited to 'drivers/gpu/drm/vkms/vkms_output.c')
-rw-r--r--drivers/gpu/drm/vkms/vkms_output.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c
index 8d7ca0cdd79f..2ee3749e2b28 100644
--- a/drivers/gpu/drm/vkms/vkms_output.c
+++ b/drivers/gpu/drm/vkms/vkms_output.c
@@ -77,9 +77,22 @@ int vkms_output_init(struct vkms_device *vkmsdev)
return ret;
}
+ encoder_cfg->encoder->possible_clones |=
+ drm_encoder_mask(encoder_cfg->encoder);
+
vkms_config_encoder_for_each_possible_crtc(encoder_cfg, idx, possible_crtc) {
encoder_cfg->encoder->possible_crtcs |=
drm_crtc_mask(&possible_crtc->crtc->crtc);
+
+ if (vkms_config_crtc_get_writeback(possible_crtc)) {
+ struct drm_encoder *wb_encoder =
+ &possible_crtc->crtc->wb_encoder;
+
+ encoder_cfg->encoder->possible_clones |=
+ drm_encoder_mask(wb_encoder);
+ wb_encoder->possible_clones |=
+ drm_encoder_mask(encoder_cfg->encoder);
+ }
}
}