[PATCH v2 04/14] drm/sti: Try to fix up the tvout possible clones

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

The current possible_clones setup doesn't look sensible. I'm assuming
the 0 and 1 are supposed to refer to the indexes of the hdmi and hda
encoders? So it kinda looks like we want hda+hdmi cloning, but then
dvo also claims to be cloneable with hdmi, but hdmi won't recipricate.

Benjamin tells me all encoders should be cloneable with each other,
so let's fix up the masks to indicate that.

Cc: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx>
Cc: Vincent Abriou <vincent.abriou@xxxxxx>
Acked-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/sti/sti_tvout.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
index 42f4c264a783..aba79c172512 100644
--- a/drivers/gpu/drm/sti/sti_tvout.c
+++ b/drivers/gpu/drm/sti/sti_tvout.c
@@ -672,7 +672,6 @@ sti_tvout_create_dvo_encoder(struct drm_device *dev,
 	drm_encoder = &encoder->encoder;
 
 	drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
-	drm_encoder->possible_clones = 1 << 0;
 
 	drm_encoder_init(dev, drm_encoder,
 			 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_LVDS,
@@ -725,7 +724,6 @@ static struct drm_encoder *sti_tvout_create_hda_encoder(struct drm_device *dev,
 	drm_encoder = &encoder->encoder;
 
 	drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
-	drm_encoder->possible_clones = 1 << 0;
 
 	drm_encoder_init(dev, drm_encoder,
 			&sti_tvout_encoder_funcs, DRM_MODE_ENCODER_DAC, NULL);
@@ -774,7 +772,6 @@ static struct drm_encoder *sti_tvout_create_hdmi_encoder(struct drm_device *dev,
 	drm_encoder = &encoder->encoder;
 
 	drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
-	drm_encoder->possible_clones = 1 << 1;
 
 	drm_encoder_init(dev, drm_encoder,
 			&sti_tvout_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL);
@@ -790,6 +787,13 @@ static void sti_tvout_create_encoders(struct drm_device *dev,
 	tvout->hdmi = sti_tvout_create_hdmi_encoder(dev, tvout);
 	tvout->hda = sti_tvout_create_hda_encoder(dev, tvout);
 	tvout->dvo = sti_tvout_create_dvo_encoder(dev, tvout);
+
+	tvout->hdmi->possible_clones = drm_encoder_mask(tvout->hdmi) |
+		drm_encoder_mask(tvout->hda) | drm_encoder_mask(tvout->dvo);
+	tvout->hda->possible_clones = drm_encoder_mask(tvout->hdmi) |
+		drm_encoder_mask(tvout->hda) | drm_encoder_mask(tvout->dvo);
+	tvout->dvo->possible_clones = drm_encoder_mask(tvout->hdmi) |
+		drm_encoder_mask(tvout->hda) | drm_encoder_mask(tvout->dvo);
 }
 
 static void sti_tvout_destroy_encoders(struct sti_tvout *tvout)
-- 
2.21.0

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