From cc7096fb6d1dfbdac5e7e2675c046fd40646cc66 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Wed, 22 Oct 2014 12:03:04 +1000
Subject: [PATCH] drm/mode: document path property and function to set it.
(v1.1)
These two didn't get documented properly, do so.
Pointed out by Daniel.
v1.1: add missing boilerplate (Daniel)
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
Documentation/DocBook/drm.tmpl | 9 ++++++++-
drivers/gpu/drm/drm_crtc.c | 13 +++++++++++++
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl
index 64d9c1e6e6cdc..b4d80a2d46d1f 100644
--- a/Documentation/DocBook/drm.tmpl
+++ b/Documentation/DocBook/drm.tmpl
@@ -2534,7 +2534,7 @@ void intel_crt_init(struct drm_device *dev)
</tr>
<tr>
<td rowspan="21" valign="top" >DRM</td>
- <td rowspan="2" valign="top" >Generic</td>
+ <td rowspan="3" valign="top" >Generic</td>
<td valign="top" >âEDIDâ</td>
<td valign="top" >BLOB | IMMUTABLE</td>
<td valign="top" >0</td>
@@ -2549,6 +2549,13 @@ void intel_crt_init(struct drm_device *dev)
<td valign="top" >Contains DPMS operation mode value.</td>
</tr>
<tr>
+ <td valign="top" >âPATHâ</td>
+ <td valign="top" >BLOB | IMMUTABLE</td>
+ <td valign="top" >0</td>
+ <td valign="top" >Connector</td>
+ <td valign="top" >Contains topology path to a connector.</td>
+ </tr>
+ <tr>
<td rowspan="1" valign="top" >Plane</td>
<td valign="top" >âtypeâ</td>
<td valign="top" >ENUM | IMMUTABLE</td>
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 0f3c24c0981bf..e6c169152bf1f 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4005,6 +4005,19 @@ done:
return ret;
}
+/**
+ * drm_mode_connector_set_path_property - set tile property on connector
+ * @connector: connector to set property on.
+ * @path: path to use for property.
+ *
+ * This creates a property to expose to userspace to specify a
+ * connector path. This is mainly used for DisplayPort MST where
+ * connectors have a topology and we want to allow userspace to give
+ * them more meaningful names.
+ *
+ * Returns:
+ * Zero on success, errno on failure.
+ */
int drm_mode_connector_set_path_property(struct drm_connector *connector,
char *path)
{
--
2.30.2