From patchwork Tue Aug 11 20:04:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lyude Paul X-Patchwork-Id: 11709569 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 1364216B1 for ; Tue, 11 Aug 2020 20:06:27 +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 E632C207DA for ; Tue, 11 Aug 2020 20:06:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Js1jwWDC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E632C207DA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.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 2B3A16E81E; Tue, 11 Aug 2020 20:06:26 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 06A846E81F for ; Tue, 11 Aug 2020 20:06:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1597176384; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6lbzOOQ4/FjyOe1F7VIhqy184y0UXwY9G/1sWSzbhfk=; b=Js1jwWDC1+SEkgEsU57ciGjONMVTouI6fWgE7pEyBxe7pKDhY+Fa2bszfRx5u3zkWeUzqK G8tcUJKG+hxtaBL0VEvM26eO9o6TVWlb8DpwAYoaAPWsUbx+8GmathnAPovz+CCLwpyZgN +b0U8zcjOWpzCIsQL6jH3vCealCI3DM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-419-sLSqZpgDMpOZDzNmt3iqJg-1; Tue, 11 Aug 2020 16:06:22 -0400 X-MC-Unique: sLSqZpgDMpOZDzNmt3iqJg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F2E201005504; Tue, 11 Aug 2020 20:06:20 +0000 (UTC) Received: from Ruby.redhat.com (ovpn-119-184.rdu2.redhat.com [10.10.119.184]) by smtp.corp.redhat.com (Postfix) with ESMTP id EFB665DA33; Tue, 11 Aug 2020 20:06:19 +0000 (UTC) From: Lyude Paul To: nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Tue, 11 Aug 2020 16:04:47 -0400 Message-Id: <20200811200457.134743-11-lyude@redhat.com> In-Reply-To: <20200811200457.134743-1-lyude@redhat.com> References: <20200811200457.134743-1-lyude@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Subject: [Intel-gfx] [RFC 10/20] drm/nouveau/kms: Use new drm_dp_has_mst() helper for checking MST caps 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: David Airlie , Ben Skeggs , open list Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Signed-off-by: Lyude Paul Reviewed-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_dp.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index d701f09aea645..bb85d81c25244 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -44,7 +44,6 @@ nouveau_dp_probe_dpcd(struct nouveau_connector *nv_connector, struct nv50_mstm *mstm = NULL; int ret; u8 *dpcd = outp->dp.dpcd; - u8 tmp; ret = drm_dp_dpcd_read(aux, DP_DPCD_REV, dpcd, DP_RECEIVER_CAP_SIZE); if (ret == DP_RECEIVER_CAP_SIZE && dpcd[DP_DPCD_REV]) { @@ -56,19 +55,10 @@ nouveau_dp_probe_dpcd(struct nouveau_connector *nv_connector, return connector_status_disconnected; } - if (nouveau_mst) + if (nouveau_mst) { mstm = outp->dp.mstm; - - if (mstm) { - if (dpcd[DP_DPCD_REV] >= DP_DPCD_REV_12) { - ret = drm_dp_dpcd_readb(aux, DP_MSTM_CAP, &tmp); - if (ret < 0) - return connector_status_disconnected; - - mstm->can_mst = !!(tmp & DP_MST_CAP); - } else { - mstm->can_mst = false; - } + if (mstm) + mstm->can_mst = drm_dp_has_mst(aux, dpcd); } return connector_status_connected;