From patchwork Thu Mar 16 11:13:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kahola X-Patchwork-Id: 13177420 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 C4333C6FD19 for ; Thu, 16 Mar 2023 11:19:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BB85810ECD6; Thu, 16 Mar 2023 11:19:25 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0FE7210E0A7 for ; Thu, 16 Mar 2023 11:19:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678965556; x=1710501556; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7bkaApEm3gyufwE56Nar9WsoMKlr/TgeQxAXyZtFd30=; b=BEMCimYxSjowDsGdnzcAHKzFNMUHICsUdkxYat/MASeX35YXXAVNugVI HGlgZYGAEh6ebffmUE2d1T3ierG1OYuKDt9Mh7Z9eNNW453CRo9i1iRpj RtQjEAbk4VOGfiTgJh4main4CIh+z5+az2tmrMS5vzdrYPY4xVT/zSg+D XVqM23uO235wbAG6nmx/MR7+8dhrNfqqcq5oJxATpa1146wKSWu4AMd6Z U4DVTWFl01pc4cWT43fJjhiGkHdJJzk32PjxT4bmHl05W/el2pRlhqzjr +q/7Rmhx+Dt3XyJsN9Hs4EPY7fmUpmufjXf/D4xEKNpWIXfjeltzhhqqg Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10650"; a="339485929" X-IronPort-AV: E=Sophos;i="5.98,265,1673942400"; d="scan'208";a="339485929" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2023 04:19:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10650"; a="744083250" X-IronPort-AV: E=Sophos;i="5.98,265,1673942400"; d="scan'208";a="744083250" Received: from sorvi2.fi.intel.com ([10.237.72.194]) by fmsmga008.fm.intel.com with ESMTP; 16 Mar 2023 04:19:14 -0700 From: Mika Kahola To: intel-gfx@lists.freedesktop.org Date: Thu, 16 Mar 2023 13:13:27 +0200 Message-Id: <20230316111335.66915-15-mika.kahola@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230316111335.66915-1-mika.kahola@intel.com> References: <20230316111335.66915-1-mika.kahola@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 14/22] drm/i915/mtl: For DP2.0 10G and 20G rates use MPLLA 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" Use MPLLA for DP2.0 rates 20G and 20G, when ssc is enabled. Signed-off-by: Mika Kahola --- drivers/gpu/drm/i915/display/intel_cx0_phy.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c index 55ec256c0379..e1a919803241 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c @@ -2220,8 +2220,12 @@ static void intel_program_port_clock_ctl(struct intel_encoder *encoder, if (!intel_panel_use_ssc(i915)) ssc_enabled = false; - /* TODO: DP2.0 10G and 20G rates enable MPLLA*/ - val |= ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0; + /* DP2.0 10G and 20G rates enable MPLLA*/ + if (crtc_state->port_clock == 1000000 || crtc_state->port_clock == 2000000) { + val |= ssc_enabled ? XELPDP_SSC_ENABLE_PLLA : 0; + } else { + val |= ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0; + } } intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),