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From: Dave Airlie <airlied@gmail.com>
To: dri-devel@lists.freedesktop.org
Subject: [PATCH 01/10] drm/dp_mst: add a function to retrieve vcpi slots
Date: Tue, 24 Feb 2015 09:23:55 +1000	[thread overview]
Message-ID: <1424733844-20185-2-git-send-email-airlied@gmail.com> (raw)
In-Reply-To: <1424733844-20185-1-git-send-email-airlied@gmail.com>

From: Dave Airlie <airlied@redhat.com>

radeon requires this to get the slots for later filling
out a table on every transition.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 13 +++++++++++++
 include/drm/drm_dp_mst_helper.h       |  2 ++
 2 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 9a5b687..0d15e6e 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2319,6 +2319,19 @@ out:
 }
 EXPORT_SYMBOL(drm_dp_mst_allocate_vcpi);
 
+int drm_dp_mst_get_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port)
+{
+	int slots = 0;
+	port = drm_dp_get_validated_port_ref(mgr, port);
+	if (!port)
+		return slots;
+
+	slots = port->vcpi.num_slots;
+	drm_dp_put_port(port);
+	return slots;
+}
+EXPORT_SYMBOL(drm_dp_mst_get_vcpi_slots);
+
 /**
  * drm_dp_mst_reset_vcpi_slots() - Reset number of slots to 0 for VCPI
  * @mgr: manager for this port
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 00c1da9..a250781 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -486,6 +486,8 @@ int drm_dp_calc_pbn_mode(int clock, int bpp);
 
 bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, int pbn, int *slots);
 
+int drm_dp_mst_get_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
+
 
 void drm_dp_mst_reset_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
 
-- 
2.1.0

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  reply	other threads:[~2015-02-23 23:24 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-23 23:23 [RFC] radeon MST support - initial pieces Dave Airlie
2015-02-23 23:23 ` Dave Airlie [this message]
2015-02-24 10:08   ` [PATCH 01/10] drm/dp_mst: add a function to retrieve vcpi slots Daniel Vetter
2015-02-23 23:23 ` [PATCH 02/10] radeon: introduce a dp_work handler Dave Airlie
2015-02-23 23:23 ` [PATCH 03/10] radeon/evergreen: add support for short HPD irqs Dave Airlie
2015-02-23 23:23 ` [PATCH 04/10] radeon/si: " Dave Airlie
2015-02-23 23:23 ` [PATCH 05/10] radeon/fb: add wrapper functions around fb connector add/remove Dave Airlie
2015-02-23 23:24 ` [PATCH 06/10] drm/radeon: add some MST registers Dave Airlie
2015-02-23 23:24 ` [PATCH 07/10] drm/radeon: add new atombios encoder/transmitter interfaces Dave Airlie
2015-02-23 23:24 ` [PATCH 08/10] drm/radeon: export max link rate calculation Dave Airlie
2015-02-23 23:24 ` [PATCH 09/10] drm/radeon: improve encoder picking functions Dave Airlie
2015-02-23 23:24 ` [PATCH 10/10] drm/radeon: add DisplayPort MST support Dave Airlie
2015-02-24 20:00 ` [RFC] radeon MST support - initial pieces Alex Deucher

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