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From: Anshuman Gupta <anshuman.gupta@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: seanpaul@chromium.org
Subject: [Intel-gfx] [PATCH 2/2] drm/i915/hotplug: Handle CP_IRQ for DP-MST
Date: Tue, 13 Oct 2020 12:50:44 +0530	[thread overview]
Message-ID: <20201013072044.7278-3-anshuman.gupta@intel.com> (raw)
In-Reply-To: <20201013072044.7278-1-anshuman.gupta@intel.com>

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@linux.intel.com>
Cc: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 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 4f8266c3ed43..eaa7de044534 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5674,6 +5674,17 @@ 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
@@ -5718,7 +5729,8 @@ 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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  parent reply	other threads:[~2020-10-13  7:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-13  7:20 [Intel-gfx] [PATCH 0/2] HDCP over DP-MST misc Anshuman Gupta
2020-10-13  7:20 ` [Intel-gfx] [PATCH 1/2] drm/i915/hdcp: Update CP property in update_pipe Anshuman Gupta
2020-10-13  7:20 ` Anshuman Gupta [this message]
2020-10-13  8:56 ` [Intel-gfx] ✓ Fi.CI.BAT: success for HDCP over DP-MST misc (rev2) Patchwork
2020-10-13 12:24 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

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