From patchwork Tue Apr 30 17:28:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sripada, Radhakrishna" X-Patchwork-Id: 13649736 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 39C67C4345F for ; Tue, 30 Apr 2024 17:31:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 99AE7112D83; Tue, 30 Apr 2024 17:31:18 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ACLsh1lg"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id BD3EA112D7A; Tue, 30 Apr 2024 17:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1714498221; x=1746034221; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=r1sklwSj48CNNRxPiIAqoKjo7MaVp0gz+dElCYGXxnE=; b=ACLsh1lg6A8Y66Ugu802rUgvkJ9AniTeyro4fbN+kN3geMemuPWLOQIV i4mn9tf2XE5aPgrILk7+kBxz7XnnNVL863MI3dK82DYWN/mFxx7nF3ogY 2sYp2Kf+l8yAn+BecvG3nFcmbLKkxzscc/w8kLsbDt8dx3JjybKZqFy7N GXKuh6/afy74UciKS5D4+eXxTanbqwa4s6eLaguh803STVVsXic6Qs5Gn rgO45bOku0rDnaqdUegZ/rx35u1AE0/dJoTvgNYRWRhgEK7ztFi+swI1F PrkLozC313i0Zv/k1Isw9pkKUoCFkrL3/eCIZ7FDFZEu5Fe1GAcLA6ujC g==; X-CSE-ConnectionGUID: Xjw3MIWBTc6cDo4QVHLTQg== X-CSE-MsgGUID: U5oNP7nWQ+WgnP7wFo70qg== X-IronPort-AV: E=McAfee;i="6600,9927,11060"; a="27742002" X-IronPort-AV: E=Sophos;i="6.07,242,1708416000"; d="scan'208";a="27742002" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Apr 2024 10:30:21 -0700 X-CSE-ConnectionGUID: LTOuyirKQuSRxxSAmksKWw== X-CSE-MsgGUID: KlZswUupTte14HxdqkgJMQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,242,1708416000"; d="scan'208";a="26617855" Received: from invictus.jf.intel.com ([10.165.21.201]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Apr 2024 10:30:21 -0700 From: Radhakrishna Sripada To: intel-gfx@lists.freedesktop.org Cc: intel-xe@lists.freedesktop.org, Balasubramani Vivekanandan , Shekhar Chauhan , Radhakrishna Sripada Subject: [PATCH v3 15/19] drm/i915/xe2hpd: Set maximum DP rate to UHBR13.5 Date: Tue, 30 Apr 2024 10:28:46 -0700 Message-Id: <20240430172850.1881525-16-radhakrishna.sripada@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240430172850.1881525-1-radhakrishna.sripada@intel.com> References: <20240430172850.1881525-1-radhakrishna.sripada@intel.com> MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Balasubramani Vivekanandan Max supported speed by xe2hpd is UHBR13.5. Limit the max DP source rate to it. Bspec: 67066 Signed-off-by: Balasubramani Vivekanandan Reviewed-by: Shekhar Chauhan Signed-off-by: Radhakrishna Sripada --- drivers/gpu/drm/i915/display/intel_dp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index e05e25cd4a94..486361eb0070 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -477,6 +477,9 @@ static int mtl_max_source_rate(struct intel_dp *intel_dp) if (intel_encoder_is_c10phy(encoder)) return 810000; + if (DISPLAY_VER_FULL(to_i915(encoder->base.dev)) == IP_VER(14, 1)) + return 1350000; + return 2000000; }