On some platforms such as Elkhart Lake, although we may use DDI D
to drive a connector, we have to use PHY A (Combo Phy PORT A) to
detect the hotplug interrupts as per the spec because there is no
one-to-one mapping between DDIs and PHYs. Therefore, use the
function intel_port_to_phy() which contains the logic for such
mapping(s) to find the correct hpd_pin.
This change should not affect other platforms as there is always
a one-to-one mapping between DDIs and PHYs.
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_hotplug.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 042d98bae1ea..491f6b6f920d 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -89,7 +89,8 @@
enum hpd_pin intel_hpd_pin_default(struct drm_i915_private *dev_priv,
enum port port)
{
- switch (port) {
+ enum phy phy = intel_port_to_phy(dev_priv, port);
+ switch (phy) {
case PORT_A:
return HPD_PORT_A;
case PORT_B:
@@ -111,7 +112,7 @@ enum hpd_pin intel_hpd_pin_default(struct drm_i915_private *dev_priv,
case PORT_I:
return HPD_PORT_I;
default:
- MISSING_CASE(port);
+ MISSING_CASE(phy);
return HPD_NONE;
}
}
--
2.21.1
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