From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adam Jackson Subject: [PATCH 3/5] drm/i915/dp: Probe branch/sink OUIs Date: Mon, 14 May 2012 16:05:47 -0400 Message-ID: <1337025949-2355-4-git-send-email-ajax@redhat.com> References: <1337025949-2355-1-git-send-email-ajax@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTP id F2FB99F308 for ; Mon, 14 May 2012 13:05:53 -0700 (PDT) Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q4EK5rH4026339 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 14 May 2012 16:05:53 -0400 Received: from ihatethathostname.lab.bos.redhat.com (ihatethathostname.lab.bos.redhat.com [10.16.43.238]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q4EK5qVn017041 for ; Mon, 14 May 2012 16:05:53 -0400 In-Reply-To: <1337025949-2355-1-git-send-email-ajax@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org Signed-off-by: Adam Jackson --- drivers/gpu/drm/i915/intel_dp.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4b63791..cc8e1ef 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1954,6 +1954,23 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) return false; } +static void +intel_dp_probe_oui(struct intel_dp *intel_dp) +{ + u8 buf[3]; + + if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT)) + return; + + if (intel_dp_aux_native_read_retry(intel_dp, DP_SINK_OUI, buf, 3)) + DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n", + buf[0], buf[1], buf[2]); + + if (intel_dp_aux_native_read_retry(intel_dp, DP_BRANCH_OUI, buf, 3)) + DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n", + buf[0], buf[1], buf[2]); +} + static bool intel_dp_get_sink_irq(struct intel_dp *intel_dp, u8 *sink_irq_vector) { @@ -2137,6 +2154,8 @@ intel_dp_detect(struct drm_connector *connector, bool force) if (status != connector_status_connected) return status; + intel_dp_probe_oui(intel_dp); + if (intel_dp->force_audio != HDMI_AUDIO_AUTO) { intel_dp->has_audio = (intel_dp->force_audio == HDMI_AUDIO_ON); } else { -- 1.7.7.6