Handle CP_IRQ in DEVICE_SERVICE_IRQ_VECTOR_ESI0
It requires to call intel_hdcp_handle_cp_irq() in case
of CP_IRQ is triggered by a sink in DP-MST topology.
Cc: "Ville Syrjälä" <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Ramalingam C <ramalingam.c@xxxxxxxxx>
Reviewed-by: Uma Shankar <uma.shankar@xxxxxxxxx>
Reviewed-by: Ramalingam C <ramalingam.c@xxxxxxxxx>
Tested-by: Karthik B S <karthik.b.s@xxxxxxxxx>
Signed-off-by: Anshuman Gupta <anshuman.gupta@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index b2bc0c8c39c7..501b9a8a2f45 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5783,6 +5783,17 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp)
"Could not write test response to sink\n");
}
+static void
+intel_dp_mst_hpd_irq(struct intel_dp *intel_dp, u8 *esi, bool *handled)
+{
+ drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, handled);
+
+ if (esi[1] & DP_CP_IRQ) {
+ intel_hdcp_handle_cp_irq(intel_dp->attached_connector);
+ *handled = true;
+ }
+}
+
/**
* intel_dp_check_mst_status - service any pending MST interrupts, check link status
* @intel_dp: Intel DP struct
@@ -5827,7 +5838,8 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
- drm_dp_mst_hpd_irq(&intel_dp->mst_mgr, esi, &handled);
+ intel_dp_mst_hpd_irq(intel_dp, esi, &handled);
+
if (!handled)
break;
--
2.26.2
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