Commit 0abd3acf authored by Anshuman Gupta's avatar Anshuman Gupta
Browse files

drm/i915/hotplug: Handle CP_IRQ for DP-MST 



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>
Reviewed-by: default avatarUma Shankar <uma.shankar@intel.com>
Reviewed-by: default avatarRamalingam C <ramalingam.c@intel.com>
Tested-by: default avatarKarthik B S <karthik.b.s@intel.com>
Signed-off-by: default avatarAnshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-4-anshuman.gupta@intel.com
parent b3c6661a

drivers/gpu/drm/i915/display/intel_dp.c

+13 −1
Original line number Diff line number Diff line
@@ -6205,6 +6205,17 @@ 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
@@ -6249,7 +6260,8 @@ 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;