From ccf03d6995fa4b784f5b987726ba98f4859bf326 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 1 Oct 2015 16:28:25 +1000 Subject: [PATCH] drm/dp/mst: add some defines for logical/physical ports This just removes the magic number. Acked-by: Daniel Vetter Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_dp_mst_topology.c | 2 +- include/drm/drm_dp_helper.h | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 3084b3a..bf27a07 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -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); } diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 499e9f6..0212d13 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -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); -- 2.7.4