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

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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: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-4-anshuman.gupta@intel.com
This commit is contained in:
Anshuman Gupta
2021-01-11 13:41:04 +05:30
parent b3c6661aad
commit 0abd3acf8a
1 changed files with 13 additions and 1 deletions
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14
drivers/gpu/drm/i915/display/intel_dp.c
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@@ -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;