From patchwork Fri Oct 23 12:20:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Gupta, Anshuman" X-Patchwork-Id: 11853279 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=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 23AC5C388F9 for ; Fri, 23 Oct 2020 12:35:20 +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 CC38D2085B for ; Fri, 23 Oct 2020 12:35:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CC38D2085B 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 425A56E5A2; Fri, 23 Oct 2020 12:35:17 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id BEED76E5A2; Fri, 23 Oct 2020 12:35:15 +0000 (UTC) IronPort-SDR: X/jMNXtQj4jMrsnY0BoKo5RLEoeDd3la9ANzYTSx/xoHFfwtlqYlNrCEmLViMeBMuVAfN+6mSv 7mNfzWbF7scw== X-IronPort-AV: E=McAfee;i="6000,8403,9782"; a="252365611" X-IronPort-AV: E=Sophos;i="5.77,408,1596524400"; d="scan'208";a="252365611" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2020 05:35:15 -0700 IronPort-SDR: GxAKVxw54yPjEQoMbRrn4QDEAGW1IJ7y3GTXA/BEWR5Epn52CNxc4yRVLkMgJ0P3Pdba9Qsu4g kdKASOR/A41Q== X-IronPort-AV: E=Sophos;i="5.77,408,1596524400"; d="scan'208";a="423415686" Received: from genxfsim-desktop.iind.intel.com ([10.223.74.178]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2020 05:35:12 -0700 From: Anshuman Gupta To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH v3 03/16] drm/i915/hotplug: Handle CP_IRQ for DP-MST Date: Fri, 23 Oct 2020 17:50:59 +0530 Message-Id: <20201023122112.15265-4-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201023122112.15265-1-anshuman.gupta@intel.com> References: <20201023122112.15265-1-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, 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 Signed-off-by: Anshuman Gupta Reviewed-by: Uma Shankar --- 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 818daab252f3..21c6c9828cd7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5657,6 +5657,17 @@ 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 @@ -5701,7 +5712,8 @@ 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;