From patchwork Mon May 16 13:19:31 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kahola X-Patchwork-Id: 9102991 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B16D8BF29F for ; Mon, 16 May 2016 13:20:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D4B5920274 for ; Mon, 16 May 2016 13:20:05 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id E77AE20125 for ; Mon, 16 May 2016 13:20:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 58D956E435; Mon, 16 May 2016 13:19:54 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id 5B9A56E431; Mon, 16 May 2016 13:19:50 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP; 16 May 2016 06:19:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,627,1455004800"; d="scan'208";a="982011284" Received: from sorvi.fi.intel.com ([10.237.72.50]) by fmsmga002.fm.intel.com with ESMTP; 16 May 2016 06:19:49 -0700 From: Mika Kahola To: dri-devel@lists.freedesktop.org Date: Mon, 16 May 2016 16:19:31 +0300 Message-Id: <1463404773-5167-6-git-send-email-mika.kahola@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1463404773-5167-1-git-send-email-mika.kahola@intel.com> References: <1463404773-5167-1-git-send-email-mika.kahola@intel.com> Cc: daniel.vetter@intel.com, intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [PATCH v2 5/7] drm: Read DPCD receiver capability for DP++ X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-5.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Read from DPCD receiver capability field for the DP++ devices. The features are - max TMDS charachter clock - max bits per component - support for conversion from 3D frame sequential to frame pack Signed-off-by: Mika Kahola --- drivers/gpu/drm/drm_dp_helper.c | 4 ++++ include/drm/drm_dp_helper.h | 10 ++++++++++ 2 files changed, 14 insertions(+) diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index ccd0fcb..f98e4be 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -464,6 +464,10 @@ int drm_dp_bd(struct drm_dp_aux *aux, struct drm_dp_bd *bd) bd->dfp.hdmi.ycbcr420_pass_through = info[3] & YCBCR420_PASS_THROUGH; bd->dfp.hdmi.conversion_from_ycbcr444_to_ycbcr422 = info[3] & YCBCR444_TO_YCBCR422; bd->dfp.hdmi.conversion_from_ycbcr444_to_ycbcr420 = info[3] & YCBCR444_TO_YCBCR420; + } else if (bd->type & DP_DS_PORT_TYPE_DP_DUALMODE) { + bd->dfp.dual_mode.tmds_clk = info[1] * 2500; + bd->dfp.dual_mode.bpc = info[2] & DP_DS_VGA_MAX_BPC_MASK; + bd->dfp.dual_mode.frame_seq_to_frame_pack = info[3] & FRAME_SEQ_TO_FRAME_PACK; } } diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 3607250..c12c64b 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -841,6 +841,15 @@ struct drm_dp_hdmi { }; /* + * DP to DP++ + */ +struct drm_dp_dual_mode { + int tmds_clk; + uint8_t bpc; + bool frame_seq_to_frame_pack; +}; + +/* * Branch device */ struct drm_dp_bd { @@ -851,6 +860,7 @@ struct drm_dp_bd { struct drm_dp_vga vga; struct drm_dp_dvi dvi; struct drm_dp_hdmi hdmi; + struct drm_dp_dual_mode dual_mode; } dfp; };