[Intel-gfx] [PATCH] drm/i915: expose HDMI connectors on port C on BYT

[Jesse Barnes]

Ryan noticed that on his board, HDMI was wired up to port C but not
exposed by the kernel, which had only expected DP on that port.  Fix
that up by enumerating both ports if possible.

Tested-by: "Matsumura, Ryan" <ryan.matsumura at intel.com>
Acked-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_display.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a0914db..fe37908 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9343,8 +9343,13 @@ static void intel_setup_outputs(struct drm_device *dev)
 			intel_dp_init(dev, PCH_DP_D, PORT_D);
 	} else if (IS_VALLEYVIEW(dev)) {
 		/* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
-		if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
-			intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
+		if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
+			intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
+					PORT_C);
+                       if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
+                               intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C,
+                                             PORT_C);
+		}
 
 		if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
 			intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
-- 
1.7.9.5