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dp/mst: add SDP stream support

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This adds code to initialise the SDP streams
for a sink in the simplest ordering.

I've no idea how you'd want to control the
ordering at this level, so don't bother
until someone comes up with a use case.

Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449036584-105393-1-git-send-email-libin.yang@linux.intel.com
This commit is contained in:
Libin Yang
2015-12-02 14:09:43 +08:00
committed by Daniel Vetter
parent e8ebd8e2bd
commit ef8f9bea13
2 changed files with 40 additions and 5 deletions
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7
include/drm/drm_dp_mst_helper.h
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@@ -94,6 +94,7 @@ struct drm_dp_mst_port {
struct drm_dp_mst_topology_mgr *mgr;
struct edid *cached_edid; /* for DP logical ports - make tiling work */
bool has_audio;
};
/**
@@ -215,13 +216,13 @@ struct drm_dp_sideband_msg_rx {
struct drm_dp_sideband_msg_hdr initial_hdr;
};
#define DRM_DP_MAX_SDP_STREAMS 16
struct drm_dp_allocate_payload {
u8 port_number;
u8 number_sdp_streams;
u8 vcpi;
u16 pbn;
u8 sdp_stream_sink[8];
u8 sdp_stream_sink[DRM_DP_MAX_SDP_STREAMS];
};
struct drm_dp_allocate_payload_ack_reply {
@@ -484,6 +485,8 @@ int drm_dp_mst_hpd_irq(struct drm_dp_mst_topology_mgr *mgr, u8 *esi, bool *handl
enum drm_connector_status drm_dp_mst_detect_port(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
bool drm_dp_mst_port_has_audio(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port);
struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);