From patchwork Wed Aug 18 18:10:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 12444969 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=-16.8 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 9990FC4338F for ; Wed, 18 Aug 2021 18:12:48 +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 62CD760E09 for ; Wed, 18 Aug 2021 18:12:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 62CD760E09 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E6F6A6E8B2; Wed, 18 Aug 2021 18:12:47 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9E09B6E8B2 for ; Wed, 18 Aug 2021 18:12:46 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10080"; a="214547484" X-IronPort-AV: E=Sophos;i="5.84,332,1620716400"; d="scan'208";a="214547484" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2021 11:12:46 -0700 X-IronPort-AV: E=Sophos;i="5.84,332,1620716400"; d="scan'208";a="531794557" Received: from jcarwana-mobl1.amr.corp.intel.com (HELO localhost) ([10.249.42.192]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2021 11:12:43 -0700 From: Jani Nikula To: intel-gfx@lists.freedesktop.org Cc: jani.nikula@intel.com, manasi.d.navare@intel.com, ville.syrjala@linux.intel.com Date: Wed, 18 Aug 2021 21:10:51 +0300 Message-Id: <00efac721babedb5efbd87d4817191b369f9283c.1629310010.git.jani.nikula@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH 16/17] drm/i915/dg2: configure TRANS_DP2_VFREQ{HIGH, LOW} for 128b/132b 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" There's a new register pair for 128b/132b mode where you need to set the pixel clock in Hz. Bspec: 54128 Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_dp_mst.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index d104441344c0..a003cc98312b 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -550,6 +550,17 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state, clear_act_sent(encoder, pipe_config); + if (pipe_config->port_clock > 1000000) { + const struct drm_display_mode *adjusted_mode = + &pipe_config->hw.adjusted_mode; + u64 crtc_clock_hz = KHz(adjusted_mode->crtc_clock); + + intel_de_write(dev_priv, TRANS_DP2_VFREQHIGH(pipe_config->cpu_transcoder), + TRANS_DP2_VFREQ_PIXEL_CLOCK(crtc_clock_hz >> 24)); + intel_de_write(dev_priv, TRANS_DP2_VFREQLOW(pipe_config->cpu_transcoder), + TRANS_DP2_VFREQ_PIXEL_CLOCK(crtc_clock_hz & 0xffffff)); + } + intel_ddi_enable_transcoder_func(encoder, pipe_config); intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(trans), 0,