[Intel-gfx] [PATCH 5/6] drm/i915: Implement ibx_digital_port_connected() for IBX

[Damien Lespiau]

From: Damien Lespiau <damien.lespiau at intel.com>

CPT+ PCHs have different bit definition to read the HPD live status. I
don't have an ILK with digital ports handy, which is why this patch is
separate from the CPT+ implementation. If the docs don't lie, it should
all be fine though.

Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 44 +++++++++++++++++++++++-------------
 1 file changed, 28 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 21fedf7..10759ea 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1006,22 +1006,34 @@ bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
 {
 	u32 bit;
 
-	/* XXX: IBX has different SDEISR bits */
-	if (HAS_PCH_IBX(dev_priv->dev))
-		return true;
-
-	switch(port->port) {
-	case PORT_B:
-		bit = SDE_PORTB_HOTPLUG_CPT;
-		break;
-	case PORT_C:
-		bit = SDE_PORTC_HOTPLUG_CPT;
-		break;
-	case PORT_D:
-		bit = SDE_PORTD_HOTPLUG_CPT;
-		break;
-	default:
-		return true;
+	if (HAS_PCH_IBX(dev_priv->dev)) {
+		switch(port->port) {
+		case PORT_B:
+			bit = SDE_PORTB_HOTPLUG;
+			break;
+		case PORT_C:
+			bit = SDE_PORTC_HOTPLUG;
+			break;
+		case PORT_D:
+			bit = SDE_PORTD_HOTPLUG;
+			break;
+		default:
+			return true;
+		}
+	} else {
+		switch(port->port) {
+		case PORT_B:
+			bit = SDE_PORTB_HOTPLUG_CPT;
+			break;
+		case PORT_C:
+			bit = SDE_PORTC_HOTPLUG_CPT;
+			break;
+		case PORT_D:
+			bit = SDE_PORTD_HOTPLUG_CPT;
+			break;
+		default:
+			return true;
+		}
 	}
 
 	return I915_READ(SDEISR) & bit;
-- 
1.7.11.7