[Intel-gfx] [PATCH v2 08/14] drm/i915: Populate possible_crtcs correctly

[Ville Syrjala]

From: Ville Syrjälä <ville.syrj...@linux.intel.com>

Don't advertize non-exisiting crtcs in the encoder possible_crtcs
bitmask.

Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index 503c20a3a49c..93fdd1cbd343 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -15211,6 +15211,20 @@ static u32 intel_encoder_possible_clones(struct 
intel_encoder *encoder)
        return possible_clones;
 }
 
+static u32 intel_encoder_possible_crtcs(struct intel_encoder *encoder)
+{
+       struct drm_device *dev = encoder->base.dev;
+       struct intel_crtc *crtc;
+       u32 possible_crtcs = 0;
+
+       for_each_intel_crtc(dev, crtc) {
+               if (encoder->crtc_mask & BIT(crtc->pipe))
+                       possible_crtcs |= drm_crtc_mask(&crtc->base);
+       }
+
+       return possible_crtcs;
+}
+
 static bool ilk_has_edp_a(struct drm_i915_private *dev_priv)
 {
        if (!IS_MOBILE(dev_priv))
@@ -15500,7 +15514,8 @@ static void intel_setup_outputs(struct drm_i915_private 
*dev_priv)
        intel_psr_init(dev_priv);
 
        for_each_intel_encoder(&dev_priv->drm, encoder) {
-               encoder->base.possible_crtcs = encoder->crtc_mask;
+               encoder->base.possible_crtcs =
+                       intel_encoder_possible_crtcs(encoder);
                encoder->base.possible_clones =
                        intel_encoder_possible_clones(encoder);
        }
-- 
2.21.0

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