From patchwork Wed Jul 6 11:04:53 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kahola X-Patchwork-Id: 9216235 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4D0E8607D9 for ; Wed, 6 Jul 2016 11:05:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4009628813 for ; Wed, 6 Jul 2016 11:05:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 349F728831; Wed, 6 Jul 2016 11:05:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C784C28813 for ; Wed, 6 Jul 2016 11:05:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 40C266E643; Wed, 6 Jul 2016 11:05:27 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id B83776E63C; Wed, 6 Jul 2016 11:05:21 +0000 (UTC) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP; 06 Jul 2016 04:05:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,318,1464678000"; d="scan'208";a="841419739" Received: from sorvi.fi.intel.com ([10.237.72.50]) by orsmga003.jf.intel.com with ESMTP; 06 Jul 2016 04:05:21 -0700 From: Mika Kahola To: dri-devel@lists.freedesktop.org Date: Wed, 6 Jul 2016 14:04:53 +0300 Message-Id: <1467803094-10473-10-git-send-email-mika.kahola@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1467803094-10473-1-git-send-email-mika.kahola@intel.com> References: <1467803094-10473-1-git-send-email-mika.kahola@intel.com> Cc: daniel.vetter@ffwll.ch, intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [PATCH v6 09/10] drm/i915: Update bits per component for display info 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-Virus-Scanned: ClamAV using ClamSMTP DisplayPort branch device may define max supported bits per component. Update display info based on this value if bpc is defined. v2: cleanup to match the drm_dp_helper.c patches introduced earlier in this series Signed-off-by: Mika Kahola --- drivers/gpu/drm/i915/intel_dp.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 76a654e..53ec844 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3932,6 +3932,14 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) uint8_t *dpcd = intel_dp->dpcd; uint8_t type; + if (dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT) { + int bpc = drm_dp_downstream_max_bpc(dpcd, + intel_dp->downstream_ports); + + if (bpc > 0) + intel_dp->attached_connector->base.display_info.bpc = bpc; + } + if (!intel_dp_get_dpcd(intel_dp)) return connector_status_disconnected; @@ -3968,6 +3976,7 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) return connector_status_unknown; } + /* Anything else is out of spec, warn and ignore */ DRM_DEBUG_KMS("Broken DP branch device, ignoring\n"); return connector_status_disconnected;