From patchwork Fri Dec 11 13:42:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Gupta, Anshuman" X-Patchwork-Id: 11968185 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1A12C433FE for ; Fri, 11 Dec 2020 13:56:38 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 63FFF23ECD for ; Fri, 11 Dec 2020 13:56:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 63FFF23ECD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1DCFE6EA87; Fri, 11 Dec 2020 13:56:36 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id A963C6EA87; Fri, 11 Dec 2020 13:56:34 +0000 (UTC) IronPort-SDR: Xm9Ce08JqZ104QEwD2HRPro/MOSlOCY22JJTUpir76wR0BgmslNDIL/mB5DTNhtUqUBHo1gD+j h9lLyzGaCZ5A== X-IronPort-AV: E=McAfee;i="6000,8403,9831"; a="162187678" X-IronPort-AV: E=Sophos;i="5.78,411,1599548400"; d="scan'208";a="162187678" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2020 05:56:34 -0800 IronPort-SDR: YeiOezlMbuJGFLoygMi5j7nR7O9AnD9qdkMW4/cv36HZlPuKNTq9pdSSODj72sLEumS1dnuhAF f72f4UvjQVtg== X-IronPort-AV: E=Sophos;i="5.78,411,1599548400"; d="scan'208";a="409228305" Received: from genxfsim-desktop.iind.intel.com ([10.223.74.178]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2020 05:56:31 -0800 From: Anshuman Gupta To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH v8 03/19] drm/i915/hotplug: Handle CP_IRQ for DP-MST Date: Fri, 11 Dec 2020 19:12:28 +0530 Message-Id: <20201211134244.14588-4-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201211134244.14588-1-anshuman.gupta@intel.com> References: <20201211134244.14588-1-anshuman.gupta@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, Karthik B S , uma.shankar@intel.com, seanpaul@chromium.org, Anshuman Gupta , juston.li@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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" Cc: Ramalingam C Reviewed-by: Uma Shankar Reviewed-by: Ramalingam C Tested-by: Karthik B S Signed-off-by: Anshuman Gupta --- 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;