From patchwork Mon Feb 10 18:40:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Souza, Jose" X-Patchwork-Id: 11373939 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1628D92A for ; Mon, 10 Feb 2020 18:41:02 +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 F279420656 for ; Mon, 10 Feb 2020 18:41:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F279420656 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0FA3E6ED0B; Mon, 10 Feb 2020 18:41:01 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 730A26ED0B for ; Mon, 10 Feb 2020 18:40:59 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Feb 2020 10:40:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,425,1574150400"; d="scan'208";a="433415615" Received: from josouza-mobl.jf.intel.com (HELO josouza-MOBL.intel.com) ([10.24.12.101]) by fmsmga006.fm.intel.com with ESMTP; 10 Feb 2020 10:40:58 -0800 From: =?utf-8?q?Jos=C3=A9_Roberto_de_Souza?= To: intel-gfx@lists.freedesktop.org Date: Mon, 10 Feb 2020 10:40:57 -0800 Message-Id: <20200210184057.296698-1-jose.souza@intel.com> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915/mst: Set intel_dp_set_m_n() for MST slaves 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: , Cc: Jani Nikula Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Commit 1c9d2eb24153 ("drm/i915: move intel_dp_set_m_n() to encoder for DDI platforms") moved the intel_dp_set_m_n() from hsw_crtc_enable() to intel_ddi_pre_enable_dp() but it missed add it to intel_mst_pre_enable_dp() causing MST slaves to not work. Fixes: 1c9d2eb24153 ("drm/i915: move intel_dp_set_m_n() to encoder for DDI platforms") Cc: Vandita Kulkarni Cc: Jani Nikula Signed-off-by: José Roberto de Souza Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 9cd59141953d..d7bfa7c350e9 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -480,6 +480,8 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, intel_ddi_enable_pipe_clock(pipe_config); intel_ddi_set_dp_msa(pipe_config, conn_state); + + intel_dp_set_m_n(pipe_config, M1_N1); } static void intel_mst_enable_dp(struct intel_encoder *encoder,