From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lyude Paul Subject: [RFC v2 10/20] drm/nouveau/kms: Use new drm_dp_has_mst() helper for checking MST caps Date: Thu, 20 Aug 2020 14:30:02 -0400 Message-ID: <20200820183012.288794-11-lyude@redhat.com> References: <20200820183012.288794-1-lyude@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20200820183012.288794-1-lyude-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, intel-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: David Airlie , Ben Skeggs , Daniel Vetter , open list List-Id: nouveau.vger.kernel.org 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 032afc73e2a33..201c0b4335563 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; -- 2.26.2