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drm/dp/mst: add some defines for logical/physical ports 

This just removes the magic number.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2015-10-01 16:28:25 +10:00
parent 274d835248
commit ccf03d6995
2 changed files with 5 additions and 1 deletions
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2
drivers/gpu/drm/drm_dp_mst_topology.c
View File

@ -1125,7 +1125,7 @@ static void drm_dp_add_port(struct drm_dp_mst_branch *mstb,
drm_dp_put_port(port);
goto out;
}
if (port->port_num >= 8) {
if (port->port_num >= DP_MST_LOGICAL_PORT_0) {
port->cached_edid = drm_get_edid(port->connector, &port->aux.ddc);
drm_mode_connector_set_tile_property(port->connector);
}

4
include/drm/drm_dp_helper.h
View File

@ -568,6 +568,10 @@
#define MODE_I2C_READ 4
#define MODE_I2C_STOP 8
/* DP 1.2 MST PORTs - Section 2.5.1 v1.2a spec */
#define DP_MST_PHYSICAL_PORT_0 0
#define DP_MST_LOGICAL_PORT_0 8
#define DP_LINK_STATUS_SIZE 6
bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
int lane_count);